| Payment Type: | T/T,D/P,L/C |
| Incoterm: | FOB,CIF,EXW,CFR |
| Transportation: | Ocean,Land,Express |
| Port: | Tianjin,Shanghai,Qingdao |
Model No.: JIS G3456
Standard: Astm, Gb, Jis, Din
Material: Stpg42, Q195-Q345, A53-A369, 10#-45#, St35-St52
Section Shape: Round
Place Of Origin: China
Application: Fluid Pipe, Boiler Pipe, Hydraulic Pipe, Structure Pipe
Production Process: Hot Rolled
Certification: Api, Ce
Special Tube: Thick Wall Pipe
Whether Alloy: Is Alloy
Tolerance: ±1%
Category: Seamless Steel Pipe
Processing Service: Punching, Cutting, Decoiling, Bending
| Selling Units | : | Ton |
| Package Type | : | Standard marine packaging, or as required by the customer |
| Picture Example | : |
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JIS G3456 Carbon Steel Pipe
JIS G3456 Grade STS 38/42/49 Specification Covers Carbon Steel Pipes for High Pressure Service.
| Standard | Grade | C | Si | Mn | P | S |
| JIS G3456 | STPT370 | ≤0.25 | 0.10-0.35 | 0.30-0.90 | ≤0.035 | ≤0.035 |
| STPT410 | ≤0.30 | 0.10-0.35 | 0.30-1.00 | ≤0.035 | ≤0.035 | |
| STPT480 | ≤0.33 | 0.10-0.35 | 0.30-1.00 | ≤0.035 | ≤0.035 |
| Standard | Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) |
| JIS G3456 | STPT370 | ≥216 | ≥370 | ≥30 |
| STPT410 | ≥245 | ≥410 | ≥25 | |
| STPT480 | ≥275 | ≥480 | ≥25 |
The tubes shall be manufactured by seamless process, electric resistance welding process, or butt welding process, and those of other grades shall be manufactured by seamless process or electric resistance welding process. The tube shall be as manufactured or as cold-finished condition, or they shall be subjected to appropriate heat treatment.
The tubes shall be practically straight. and the two ends shall be at right angles to the axis of the tube. The tubes shall be free from defects detrimental to practical use.
| Division | Tolerances on outside diameter | Tolerances on wall thickness | Tolerance on deviation in wall thickness |
| Hot finished Seamless Steel Pipe | Up to 50 mm 【0.5mm | ≤Up to 4 mm | Up to and incl. 20 % of |
| 50mm and over, up to 160mm | |||
| 160mm and over, up to 200mm | ≤4mm and over | ||
| 200mm and over 【0.8% | |||
| However, for pipes 350mm and over in diameter, the length of circumference may | |||
| Cold finished seamless steel | Up to 40mm 【0.3mm | ≤Up to 2 mm | - |
| 40mm and over 【0.8% | ≤2mm and over | ||
| However, for pipes 350mm and over in diameter, the length of circumference may |
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