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recently established two new pipe production lines at Pohang #2 Plant.
The new mills are designed to produce various hight-tech steel pipes such as OCTG up
to X120 grade, Line Pipes including sour pipes and Mechanical Tubing based on worldwide
superior quality control system certified by API Q1 standards and international major
Classification Society.
One of features at Pohang #2 plant is to produce ultra heavy wall thickness pipe. We
can produce up to 20-26%(t/D). We focus this products for mechanical tubing to
substitute Seamless with ERW production for better dimensional tolerance in wall
thickness and outside diameter.
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Nexteel has several features in their equipments. First, we apply new technology "Quick
Change Systm" on 8-5/8" line which provides ten times faster than conventional roll
changing system used by most of pipe mills. This provides small quantity production and
good productivity for better service to meet variety of customers' demand. Secondly, they
have a new hydrostatic test equipment to accomodate up to 7,000psi(511bar) test pressure>
for high quality pipe. Thirdly, we have state of art Off Line full body Ultrasonic inspection
unit and Weld Seam Ultrasonic inspection unit to satisfy the customer's demand for
quality products. Lastly, we applied robotic auto packing system to expedite our
productivity and provide good surface condition.
This Pohang #2 plant completed upgrade of 16" pipe mill in April 2008 to produce the pipes
with the ranges of 1-1/2 "through 16", increasing annual pipe production capacity up to
420,000 tonnes (#1 plant; 120,000 tons, #2 plant; 300,000 tons).
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| Plant |
Mill |
Usage |
Out Dia |
Wall
Thickness |
Annual
Prd. Capa |
Remarks |
| Plant #2 |
16" |
OCTG, API Line Pipe, Shape |
6"~16" |
0.24"~0.7" |
180,000 MT |
View |
| 8" |
OCTG, API Line Pipe, Mechanical |
1.5"~8-5/8" |
0.12"~0.7" |
120,000 MT |
View |
| Plant #1 |
8" |
Standard & Structual, Shape |
3"~8-5/8" |
0.08"~0.4" |
80,000 MT |
View |
| 3" |
Standard & Structual, Shape |
1.25"~3" |
0.05"~0.25" |
40,000 MT |
View |
| Total |
420,000 MT |
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OD(inch)
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Thickness(inch)
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0.12
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0.14
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0.19
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0.24
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0.26
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0.28
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0.34
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0.38
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0.5
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0.54
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0.57
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0.64
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0.72
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1.52
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1.7
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1.94
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2.42
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3.05
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3.56
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3½
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4
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5
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6
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8
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10.69
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10.92
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12.74
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12.92
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14
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16
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Size
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WEIGHT
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Outside Diameter
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Wall Thickness
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lb/ft
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kg/ft
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kg/m
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Nominal
Size
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inch
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(mm)
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SCH. NO.
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Inch
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(mm)
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1 1/4
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1.660
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(42.20)
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40(Std)
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0.133
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(3.4)
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2.27
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1.03
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3.43
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80(XS)
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0.179
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(4.5)
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3.00
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1.36
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4.51
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1 1/2
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1.900
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(48.30)
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40(Std)
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0.145
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(3.7)
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2.72
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1.23
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4.07
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80(XS)
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0.200
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(5.1)
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3.63
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1.65
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5.43
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2
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2 3/8
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(60.3)
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0.083
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(2.1)
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2.03
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0.92
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3.01
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0.109
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(2.8)
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2.64
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1.20
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3.97
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0.125
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(3.2)
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3.01
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1.36
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4.51
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0.141
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(3.6)
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3.37
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1.53
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5.03
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40(Std)
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0.154
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(3.9)
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3.66
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1.66
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5.42
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0.172
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(4.4)
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4.05
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1.84
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6.07
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0.188
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(4.8)
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4.40
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1.99
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6.57
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80(XS)
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0.218
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(5.5)
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5.03
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2.28
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7.43
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0.250
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(6.4)
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5.68
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2.58
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8.51
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0.281
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(7.1)
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6.29
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2.85
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9.31
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0.436
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(11.1)
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9.04
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4.10
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13.47
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2 1/2
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2 7/8
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(73.0)
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0.083
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(2.1)
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2.48
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1.12
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3.67
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0.109
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(2.8)
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3.22
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1.46
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4.85
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0.125
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(3.2)
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3.67
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1.67
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5.51
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0.141
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(3.6)
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4.12
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1.87
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6.16
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0.154
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(3.9)
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4.48
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2.03
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6.65
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0.172
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(4.4)
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4.97
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2.25
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7.44
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0.188
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(4.8)
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5.40
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2.45
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8.07
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40(Std)
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0.203
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(5.2)
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5.79
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2.63
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8.69
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0.216
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(5.5)
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6.13
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2.78
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9.16
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0.250
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(6.4)
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7.02
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3.18
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10.51
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80(XS)
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0.276
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(7.0)
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7.67
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3.48
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11.39
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0.552
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(14.0)
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13.71
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6.22
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20.37
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3
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3 1/2
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(88.9)
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0.083
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(2.1)
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3.03
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1.38
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4.50
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0.109
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(2.8)
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3.95
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1.79
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5.95
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0.125
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(3.2)
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4.51
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2.05
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6.76
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0.141
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(3.6)
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5.06
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2.30
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7.57
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0.156
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(4.0)
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5.58
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2.53
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8.37
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0.172
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(4.4)
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6.12
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2.78
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9.17
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0.188
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(4.8)
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6.66
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3.02
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9.95
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40(Std)
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0.216
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(5.5)
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7.58
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3.44
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11.31
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0.250
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(6.4)
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8.69
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3.94
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13.02
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0.281
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(7.1)
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9.67
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4.39
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14.32
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80(XS)
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0.300
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(7.6)
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10.26
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4.66
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15.24
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3 1/2
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4
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(101.6)
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0.083
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(2.1)
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3.48
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1.58
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5.15
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0.109
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(2.8)
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4.53
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2.06
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6.82
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0.125
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(3.2)
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5.18
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2.35
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7.76
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0.141
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(3.6)
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5.82
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2.64
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8.70
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0.156
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(4.0)
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6.41
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2.91
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9.63
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0.172
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(4.4)
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7.04
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3.19
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10.55
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0.188
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(4.8)
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7.66
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3.48
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11.46
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40(Std)
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0.226
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(5.7)
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9.12
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4.14
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13.48
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0.250
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(6.4)
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10.02
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4.55
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15.02
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0.281
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(7.1)
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11.17
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5.07
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16.55
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80(XS)
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0.318
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(8.1)
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12.52
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5.68
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18.68
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4
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4 1/2
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(114.3)
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0.083
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(2.1)
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3.92
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1.78
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5.81
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|
0.125
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(3.2)
|
5.85
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2.65
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8.77
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0.141
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(3.6)
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6.57
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2.98
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9.83
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0.156
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(4.0)
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7.24
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3.29
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10.88
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0.172
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(4.4)
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7.96
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3.61
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11.92
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0.188
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(4.8)
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8.67
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3.93
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12.96
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0.203
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(5.2)
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9.32
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4.23
|
13.99
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|
0.219
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(5.6)
|
10.02
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4.55
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15.01
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40(Std)
|
0.237
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(6.0)
|
10.80
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4.90
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16.02
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0.250
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(6.4)
|
11.36
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5.15
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17.03
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|
0.281
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(7.1)
|
12.67
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5.75
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18.77
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|
0.312
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(7.9)
|
13.97
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6.34
|
20.73
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80(XS)
|
0.337
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(8.6)
|
15.00
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6.80
|
22.42
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|
120
|
0.438
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(11.1)
|
19.02
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8.63
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28.25
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5
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5 9/16
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(141.3)
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0.083
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(2.1)
|
4.86
|
2.21
|
7.21
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|
0.125
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(3.2)
|
7.27
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3.30
|
10.90
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|
|
0.156
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(4.0)
|
9.02
|
4.09
|
13.54
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|
|
0.188
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(4.8)
|
10.80
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4.90
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16.16
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|
|
0.219
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(5.6)
|
12.51
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5.68
|
18.74
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40(Std)
|
0.258
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(6.6)
|
14.63
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6.64
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21.92
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|
|
0.281
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(7.1)
|
15.87
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7.20
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23.50
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|
0.312
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(7.9)
|
17.51
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7.95
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25.99
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|
|
0.344
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(8.7)
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19.19
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8.71
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28.45
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80(XS)
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0.375
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(9.5)
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20.80
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9.43
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30.88
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6
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6 5/8
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(168.3)
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0.083
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(2.1)
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5.80
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2.63
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8.61
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|
0.109
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(2.8)
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7.59
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3.44
|
11.43
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|
|
0.125
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(3.2)
|
8.69
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3.94
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13.03
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|
0.141
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(3.6)
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9.77
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4.43
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14.62
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|
|
0.156
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(4.0)
|
10.79
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4.89
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16.21
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|
0.172
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(4.4)
|
11.87
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5.38
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17.78
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0.188
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(4.8)
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12.94
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5.87
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19.35
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|
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0.203
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(5.2)
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13.94
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6.32
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20.91
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|
|
0.219
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(5.6)
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15.00
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6.80
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22.47
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|
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0.250
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(6.4)
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17.04
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7.73
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25.55
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|
40
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0.280
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(7.1)
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18.99
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8.62
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28.22
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|
|
0.312
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(7.9)
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21.06
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9.55
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31.25
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|
0.344
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(8.7)
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23.10
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10.48
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34.24
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|
|
0.375
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(9.5)
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25.05
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11.37
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37.20
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80(XS)
|
0.432
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(11.0)
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28.60
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12.98
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42.67
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|
8
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8.625
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(219.1)
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|
0.125
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(3.2)
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11.36
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5.15
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17.04
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|
|
0.156
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(4.0)
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14.12
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6.41
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21.22
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|
|
0.188
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(4.8)
|
16.96
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7.69
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25.37
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|
|
0.203
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(5.2)
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18.28
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8.29
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27.43
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|
|
0.219
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(5.6)
|
19.68
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8.93
|
29.48
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|
20
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0.250
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(6.4)
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22.38
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10.15
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33.57
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|
30
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0.277
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