Process:
ERW (Electric Resistance Welded)
HFI (High Frequency Induction)
EFW(ELECTRIC FUSION WELDED TUBE)
HFW(High-Frequency Welding)
Feature of ERW Pipe (Electric Resistance Welded Pipe);
1) Economy Benefit: ERW steel pipe is less expensive than seamless steel pipe.|
2) High Precision: ERW steel pipe has a closer tolerance of wall thickness whencompared with seamless steel pipe.
SIZE:
OD/mm | WT/mm | ||||||||||||||||||
1.8 | 2.1 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 9 | 9.5 | 10 | 11 | 12 | |
21.3 | √ | √ | √ | √ | |||||||||||||||
26.7 | √ | √ | √ | √ | √ | ||||||||||||||
33.4 | √ | √ | √ | √ | √ | ||||||||||||||
42.3 | √ | √ | √ | √ | √ | ||||||||||||||
48.3 | √ | √ | √ | √ | √ | ||||||||||||||
60.3 | √ | √ | √ | √ | √ | √ | |||||||||||||
73 | √ | √ | √ | √ | √ | √ | |||||||||||||
88.9 | √ | √ | √ | √ | √ | √ | √ | √ | √ | ||||||||||
101.6 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
114.3 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
121 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
127 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
133 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
139.7 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
152 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
159 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
168.3 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
177.8 | √ | √ | √ | √ | √ | √ | √ | √ | √ | ||||||||||
193.7 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | ||||||||
219.1 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
244.5 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
273 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
323.9 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||
355.6 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
406.4 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
457.2 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
508 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
559 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
610 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |||||||||
660 | √ | √ | √ | √ | √ | √ | √ | √ |
Chemical Analysis (%):
Type of pipe | Class | Grade | C | Si | Mn | P | S | V | Nb | Ti |
max | max | max | max | max | max | max | max | |||
WELD | PLS1 | L245 B | 0.26 | – | 1.2 | – | 0.03 | 0.03 | – | – |
L290 X42 | 0.26 | – | 1.3 | – | 0.03 | 0.03 | – | – | ||
L320 X46 | 0.26 | – | 1.4 | – | 0.03 | 0.03 | – | – | ||
L360 X52 | 0.26 | – | 1.4 | – | 0.03 | 0.03 | – | – | ||
L390 X56 | 0.26 | – | 1.4 | – | 0.03 | 0.03 | – | – | ||
L415 X60 | 0.26 | – | 1.4 | – | 0.03 | 0.03 | – | – | ||
L450 X65 | 0.26 | – | 1.45 | – | 0.03 | 0.03 | – | – | ||
L485 X70 | 0.26 | – | 1.65 | – | 0.03 | 0.03 | – | – | ||
PLS2 | L245M BM | 0.22 | 0.45 | 1.2 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | |
L290M X42M | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | ||
L320M X46M | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | ||
L360M X52M | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | – | – | – | ||
L390M X56M | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | – | – | – | ||
L415M X60M | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | – | – | – | ||
L450M X65M | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | – | – | – | ||
L485M X70M | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | – | – | – | ||
L555M X80M | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | – | – | – |
Mechanical Properities:
Standard | Class | Grade | Yield strength not less than (MPa) |
Tensile strength (MPa) |
Elongation(%) | Y.S/T.S | |
API 5L ISO 3183 |
PLS1 | L245B | min | 245 | 415 | b | – |
L290X42 | min | 290 | 415 | b | – | ||
L320X46 | min | 320 | 435 | b | – | ||
L360X52 | min | 360 | 460 | b | – | ||
L390X56 | min | 390 | 490 | b | – | ||
L415X60 | min | 415 | 520 | b | – | ||
L450X60 | min | 450 | 535 | b | – | ||
L485X70 | min | 485 | 570 | b | – | ||
PLS2 | L245N BN | min | 245 | 415 | b | – | |
L245M BM | max | 450 | 760 | b | 0.93 | ||
L290NX42N | min | 290 | 415 | b | – | ||
L290MX42M | max | 495 | 760 | b | 0.93 | ||
L320NX46N | min | 320 | 435 | b | – | ||
L320MX46M | max | 525 | 760 | b | 0.93 | ||
L360NX52N | min | 360 | 460 | b | – | ||
L360MX52M | max | 530 | 760 | b | 0.93 | ||
L390NX56N | min | 390 | 490 | b | – | ||
L390MX56M | max | 545 | 760 | b | 0.93 | ||
L415NX60N | min | 415 | 520 | b | – | ||
L415MX60M | max | 565 | 760 | b | 0.93 | ||
L450MX65M | min | 450 | 535 | b | – | ||
max | 600 | 760 | b | 0.93 | |||
L485MX70M | min | 485 | 570 | b | – | ||
max | 635 | 760 | b | 0.93 | |||
L555MX80M | min | 555 | 625 | b | – | ||
max | 705 | 825 | b | 0.93 |
Toughness:
Standard | Grade | Transverse minimum impact of Pipe body |
Transverse minimum impact of weld (J) |
|||||
(J) | ||||||||
D≤508 | 508mm | 762mm | 914mm | 1219mm | 1422mm | 1422mm | ||
API SPEC 5L | ≤L415×60 | 27(20) | 27(20) | 40(30) | 40(30) | 40(30) | 27(20) | 40(30) |
>L415×60 | 27(20) | 27(20) | 40(30) | 40(30) | 54(40) | 27(20) | 40(30) | |
≤L450×65 | ||||||||
>L450×65 | 27(20) | 27(20) | 40(30) | 40(30) | 54(40) | 27(20) | 40(30) | |
≤L485×70 | ||||||||
>L485×70 | 40(30) | 40(30) | 40(30) | 40(30) | 54(40) | 27(20) | 40(30) | |
≤L555×80 |
Note:(1)The values in the table be suitable for the full size standard sample.
(2) The values inside bracket is the minimum single value, outside bracket is
the average value.
(3) Test Temperature: 0°C.
Available Dimension Range:Φ21.3~660*1~20mm
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