SSAW Steel Pipe(Spiral Submerged Arc Pipe), Spiral Welded Pipe
Sizes:
Out diameter:219mm-3620mm
Wall thickness: 5mm-25.4mm
Length: 3m-12m
Standard and Classfication of SSAW Steel Pipe
| Classfication | Standard | Main Products |
| Line Pipe | API 5L PSL1/2 | Line pipe |
| Casing | API 5CT/ ISO 11960 PSL1 | Steel pipe for use as casing or tubing for wells of petroleum and natural gas industries |
| Steel Pipe for Fluid Service | ASTM A53 | Black and hot-hipped galvanized welded and seamless steel pipe |
| BS EN10217-2 | Welded steel tybes for pressure purposes - delivery technical conditions - part2: Electric welded non- alloy and alloy steel tubes with specified elevated temperature properties |
| BS EN10217-5 | Welded steel tybes for pressure purposes - delivery technical conditions - part5: submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties |
| Steel Pipe for Ordinary Structure | ASTM A252 | Welded and seamless steel pipe piles |
| BS EN10219-1 | Cold formed welded structural hollow sections of non-alloy and fine grain steels - part1: Technical delivert conditions |
| BS EN10219-2 | Cold formed welded structural hollow sections of non-alloy and fine grain steels - part2: tolerances dimmsions and sectional properties |
Chemical Analysis and Mechanical Properties of SSAW Steel Pipe
| Standard | Grade | Chemical Composition(max)% | Mechanical Properties(min) |
| C | Si | Mn | P | S | Tensile Strength(Mpa) | Yield Strength(Mpa) |
| API 5CT | h40 | - | - | - | - | 0.030 | 417 | 417 |
| J55 | - | - | - | - | 0.030 | 517 | 517 |
| K55 | - | - | - | - | 0.300 | 655 | 655 |
| API 5L PSL1 | A | 0.22 | - | 0.90 | 0.030 | 0.030 | 335 | 335 |
| B | 0.26 | - | 1.20 | 0.030 | 0.030 | 415 | 415 |
| X42 | 0.26 | - | 1.30 | 0.030 | 0.030 | 415 | 415 |
| X46 | 0.26 | - | 1.40 | 0.030 | 0.030 | 435 | 435 |
| X52 | 0.26 | - | 1.40 | 0.030 | 0.030 | 460 | 460 |
| X56 | 0.26 | - | 1.40 | 0.030 | 0.030 | 490 | 490 |
| X60 | 0.26 | - | 1.40 | 0.030 | 0.030 | 520 | 520 |
| X65 | 0.26 | - | 1.45 | 0.030 | 0.030 | 535 | 535 |
| X70 | 0.26 | - | 1.65 | 0.030 | 0.030 | 570 | 570 |
| API 5L PSL2 | B | 0.22 | 0.45 | 1.20 | 0.025 | 0.015 | 415 | 415 |
| X42 | 0.22 | 0.45 | 1.30 | 0.025 | 0.015 | 415 | 415 |
| X46 | 0.22 | 0.45 | 1.40 | 0.025 | 0.015 | 435 | 435 |
| X52 | 0.22 | 0.45 | 1.40 | 0.025 | 0.015 | 460 | 460 |
| X56 | 0.22 | 0.45 | 1.40 | 0.025 | 0.015 | 490 | 490 |
| X60 | 0.12 | 0.45 | 1.60 | 0.025 | 0.015 | 520 | 520 |
| X65 | 0.12 | 0.45 | 1.60 | 0.025 | 0.015 | 535 | 535 |
| X70 | 0.12 | 0.45 | 1.70 | 0.025 | 0.015 | 570 | 570 |
| X80 | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 625 | 625 |
| ASTM A53 | A | 0.25 | 0.10 | 0.95 | 0.050 | 0.045 | 330 | 330 |
| B | 0.30 | 0.10 | 1.20 | 0.050 | 0.045 | 415 | 415 |
| ASTM A252 | 1 | - | - | - | 0.050 | - | 345 | 345 |
| 2 | - | - | - | 0.050 | - | 414 | 414 |
| 3 | - | - | - | 0.050 | - | 455 | 455 |
| EN10217-1 | P195TR1 | 0.13 | 0.35 | 0.70 | 0.025 | 0.020 | 320 | 320 |
| P195TR2 | 0.13 | 0.35 | 0.70 | 0.025 | 0.020 | 320 | 320 |
| P235TR1 | 0.16 | 0.35 | 1.20 | 0.025 | 0.020 | 360 | 360 |
| P235TR2 | 0.16 | 0.35 | 1.20 | 0.025 | 0.020 | 360 | 360 |
| P265TR1 | 0.20 | 0.40 | 1.40 | 0.025 | 0.020 | 410 | 410 |
| P265TR2 | 0.20 | 0.40 | 1.40 | 0.025 | 0.020 | 410 | 410 |
| EN10217-2 | P195GH | 0.13 | 0.35 | 0.70 | 0.025 | 0.020 | 320 | 320 |
| P235GH | 0.16 | 0.35 | 1.20 | 0.025 | 0.020 | 360 | 360 |
| P265GH | 0.20 | 0.40 | 1.40 | 0.025 | 0.020 | 410 | 410 |
| EN10217-5 | P235GH | 0.16 | 0.35 | 1.20 | 0.025 | 0.020 | 360 | 360 |
| P265GH | 0.20 | 0.40 | 1.40 | 0.025 | 0.020 | 410 | 410 |
| EN10219-1 | S235JRH | 0.17 | - | 1.40 | 0.040 | 0.040 | 360 | 360 |
| S275JOH | 0.20 | - | 1.50 | 0.035 | 0.035 | 410 | 410 |
| S275J2H | 0.20 | - | 1.50 | 0.030 | 0.030 | 410 | 410 |
| S355JOH | 0.22 | 0.55 | 1.60 | 0.035 | 0.035 | 470 | 470 |
| S355J2H | 0.22 | 0.55 | 1.60 | 0.030 | 0.030 | 470 | 470 |
| S355K2H | 0.22 | 0.55 | 1.60 | 0.030 | 0.030 | 470 | 470 |
SSAW Steel Pipe Manufacturing Process:
Spiral steel pipe (SSAW) is a spiral seam steel pipe made of strip steel coils as raw materials, often extruded and formed by automatic double-wire double-sided submerged arc welding. The spiral steel pipe feeds the strip steel into the welded pipe unit. After rolling by multiple rollers, the strip steel is gradually rolled up to form a round tube blank with an open gap. The reduction of the squeeze roller is adjusted to control the weld gap at 1~ 3mm, and make both ends of the welding joint flush.