SSAW steel pipe (spiral submerged arc welded steel pipe) is formed by spiral bending of hot-rolled strip steel, and spiral seam steel pipe (also called spiral welded pipe, spiral pipe spiral steel pipe) is formed by automatic welding of submerged arc for inner and outer joints.
Material of SSAW Steel Pipe
| Uses | Standard |
| Steel Pipe for Fluid Service | GB/T 14291 |
| GB/T 3091 | |
| SY/T 5037 | |
| ASTM A53 | |
| BS EN10217-2 | |
| BS EN10217-5 | |
| Steel Pipe for Ordinary Structure | GB/T 13793 |
| SY/T 5040 | |
| ASTM A252 | |
| BS EN10219-1 | |
| BS EN10219-2 | |
| Line Pipe | GB/T 9711.1 |
| GB/T 9711.2 | |
| API 5L PSL1/2 | |
| Casing | API 5CT/ ISO 11960 PSL1 |
Chemical Analysis and Mechanical Properties of SSAW Steel Pipe
The raw material of the SSAW steel pipe includes steel coil, welding wire, flux. All of raw materials must be through strict physical and chemical maintenance before the investment.
| Standard | Grade | Chemical Composition(max)% | Mechanical Properties(min) | |||||
| C | Si | Mn | P | S | Tensile Strength(Mpa) | Yield Strength(Mpa) | ||
| API 5CT | h40 | – | – | – | – | 0.03 | 417 | 417 |
| J55 | – | – | – | – | 0.03 | 517 | 517 | |
| K55 | – | – | – | – | 0.3 | 655 | 655 | |
| API 5L PSL1 | A | 0.22 | – | 0.9 | 0.03 | 0.03 | 335 | 335 |
| B | 0.26 | – | 1.2 | 0.03 | 0.03 | 415 | 415 | |
| X42 | 0.26 | – | 1.3 | 0.03 | 0.03 | 415 | 415 | |
| X46 | 0.26 | – | 1.4 | 0.03 | 0.03 | 435 | 435 | |
| X52 | 0.26 | – | 1.4 | 0.03 | 0.03 | 460 | 460 | |
| X56 | 0.26 | – | 1.4 | 0.03 | 0.03 | 490 | 490 | |
| X60 | 0.26 | – | 1.4 | 0.03 | 0.03 | 520 | 520 | |
| X65 | 0.26 | – | 1.45 | 0.03 | 0.03 | 535 | 535 | |
| X70 | 0.26 | – | 1.65 | 0.03 | 0.03 | 570 | 570 | |
| API 5L PSL2 | B | 0.22 | 0.45 | 1.2 | 0.025 | 0.015 | 415 | 415 |
| X42 | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 415 | 415 | |
| X46 | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 435 | 435 | |
| X52 | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 460 | 460 | |
| X56 | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 490 | 490 | |
| X60 | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 520 | 520 | |
| X65 | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 535 | 535 | |
| X70 | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | 570 | 570 | |
| X80 | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 625 | 625 | |
| ASTM A53 | A | 0.25 | 0.1 | 0.95 | 0.05 | 0.045 | 330 | 330 |
| B | 0.3 | 0.1 | 1.2 | 0.05 | 0.045 | 415 | 415 | |
| ASTM A252 | 1 | – | – | – | 0.05 | – | 345 | 345 |
| 2 | – | – | – | 0.05 | – | 414 | 414 | |
| 3 | – | – | – | 0.05 | – | 455 | 455 | |
| EN10217-1 | P195TR1 | 0.13 | 0.35 | 0.7 | 0.025 | 0.02 | 320 | 320 |
| P195TR2 | 0.13 | 0.35 | 0.7 | 0.025 | 0.02 | 320 | 320 | |
| P235TR1 | 0.16 | 0.35 | 1.2 | 0.025 | 0.02 | 360 | 360 | |
| P235TR2 | 0.16 | 0.35 | 1.2 | 0.025 | 0.02 | 360 | 360 | |
| P265TR1 | 0.2 | 0.4 | 1.4 | 0.025 | 0.02 | 410 | 410 | |
| P265TR2 | 0.2 | 0.4 | 1.4 | 0.025 | 0.02 | 410 | 410 | |
| EN10217-2 | P195GH | 0.13 | 0.35 | 0.7 | 0.025 | 0.02 | 320 | 320 |
| P235GH | 0.16 | 0.35 | 1.2 | 0.025 | 0.02 | 360 | 360 | |
| P265GH | 0.2 | 0.4 | 1.4 | 0.025 | 0.02 | 410 | 410 | |
| EN10217-5 | P235GH | 0.16 | 0.35 | 1.2 | 0.025 | 0.02 | 360 | 360 |
| P265GH | 0.2 | 0.4 | 1.4 | 0.025 | 0.02 | 410 | 410 | |
| EN10219-1 | S235JRH | 0.17 | – | 1.4 | 0.04 | 0.04 | 360 | 360 |
| S275JOH | 0.2 | – | 1.5 | 0.035 | 0.035 | 410 | 410 | |
| S275J2H | 0.2 | – | 1.5 | 0.03 | 0.03 | 410 | 410 | |
| S355JOH | 0.22 | 0.55 | 1.6 | 0.035 | 0.035 | 470 | 470 | |
| S355J2H | 0.22 | 0.55 | 1.6 | 0.03 | 0.03 | 470 | 470 | |
| S355K2H | 0.22 | 0.55 | 1.6 | 0.03 | 0.03 | 470 | 470 | |
Uses of SSAW Steel Pipe
for fluid sevice
for low pressure fluid service
for pipelines for low pressure fluid service
for pressure purposes
for pipe piles
Cold formed welded structural hollow sections of non-alloy and fine grain steels
for pipeline transportation system of petroleum and natural gas industries(Class A steel pipe)
for use as casing or tubing for wells of petroleum and natural gas industries
Out diameter Wall Thickness
219mm-3620mm 5mm-25.4mm
| Out Diameter | Wall Thickness (mm) | |||||||||||||||||||
| mm | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| 219.1 | . | . | . | . | ||||||||||||||||
| 273 | . | . | . | . | . | |||||||||||||||
| 323.9 | . | . | . | . | . | . | . | |||||||||||||
| 325 | . | . | . | . | . | . | . | |||||||||||||
| 355.6 | . | . | . | . | . | . | . | |||||||||||||
| 377 | . | . | . | . | . | . | . | . | ||||||||||||
| 406.4 | . | . | . | . | . | . | . | |||||||||||||
| 426 | . | . | . | . | . | . | . | |||||||||||||
| 457 | . | . | . | . | . | . | . | |||||||||||||
| 478 | . | . | . | . | . | . | . | |||||||||||||
| 508 | . | . | . | . | . | . | . | . | ||||||||||||
| 529 | . | . | . | . | . | . | . | . | ||||||||||||
| 630 | . | . | . | . | . | . | . | . | . | |||||||||||
| 711 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 720 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 813 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| 820 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 920 | . | . | . | . | . | . | . | . | . | . | ||||||||||
| 1020 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| 1220 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| 1420 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 1620 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 1820 | . | . | . | . | . | . | . | . | . | . | ||||||||||
| 2020 | . | . | . | . | . | . | . | . | . | |||||||||||
| 2220 | . | . | . | . | . | . | . | . | ||||||||||||
| 2500 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| 2540 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| 3500 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
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