Complaint
Standard of carbon seamless steel pipe
| ASTM A53 Gr.B | Black and hot-dipped zinc-coated steel pipes welded and seamless |
| ASTM A106 Gr.B | Seamless carbon steel for high temperature service |
| ASTM SA179 | Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes |
| ASTM SA192 | Seamless carbon steel boiler tubes for high pressure |
| ASTM SA210 | Seamless Medium-carbon boiler and superheater tubes |
| ASTM A213 | Seamless alloy-steel boiler, superheater, and heat-exchanger tubes |
| ASTM A333 GR.6 | seamless and welded carbon and alloy steel pipe intended for use at low temperatures. |
| ASTM A335 P9,P11,T22,T91 | Seamless ferritic alloy-steel pipe for high-temperature service |
| ASTM A336 | Alloy steel forgings for pressure and high-temperature parts |
| ASTM SA519 4140/4130 | Seamless carbon for mechanical tubing |
| API Spec 5CT J55/K55/N80/L80/P110/K55 | Seamless steel pipe for casing |
| API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70 | Seamless steel pipe for line pipe |
| DIN 17175 | Seamless steel tube for elevated temperture |
| DN2391 | Cold drawn seamless prevision pipe |
| DIN 1629 | Seamless circular unalloyed steel tubes subject to special requirements |
Chemical components & mechanical properties
| Standard | Grade | Chemical Components (%) | Mechanical Properties | ||||||
| ASTM A53 | C | Si | Mn | P | S | Tensile STrength(Mpa) | Yield STrength(Mpa) | ||
| A | ≤0.25 | - | ≤0.95 | ≤0.05 | ≤0.06 | ≥330 | ≥205 | ||
| B | ≤0.30 | - | ≤1.2 | ≤0.05 | ≤0.06 | ≥415 | ≥240 | ||
| ASTM A106 | A | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥415 | ≥240 | |
| B | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥485 | ≥275 | ||
| ASTM SA179 | A179 | 0.06-0.18 | - | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 | |
| ASTM SA192 | A192 | 0.06-0.18 | ≤0.25 | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 | |
| API 5L PSL1 | A | 0.22 | - | 0.90 | 0.030 | 0.030 | ≥331 | ≥207 | |
| B | 0.28 | - | 1.20 | 0.030 | 0.030 | ≥414 | ≥241 | ||
| X42 | 0.28 | - | 1.30 | 0.030 | 0.030 | ≥414 | ≥290 | ||
| X46 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥434 | ≥317 | ||
| X52 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥455 | ≥359 | ||
| X56 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥490 | ≥386 | ||
| X60 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥517 | ≥448 | ||
| X65 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥531 | ≥448 | ||
| X70 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥565 | ≥483 | ||
| API 5L PSL2 | B | 0.24 | - | 1.20 | 0.025 | 0.015 | ≥414 | ≥241 | |
| X42 | 0.24 | - | 1.30 | 0.025 | 0.015 | ≥414 | ≥290 | ||
| X46 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥434 | ≥317 | ||
| X52 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥455 | ≥359 | ||
| X56 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥490 | ≥386 | ||
| X60 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥517 | ≥414 | ||
| X65 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥531 | ≥448 | ||
| X70 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥565 | ≥483 | ||
| X80 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥621 | ≥552 | ||
Classfication of carbon seamless steel pipe
| Types | Application |
| Structure Purposes | General structure and mechanical |
| Liquid Services | Petroleum, gas and other fluids conveying |
| Low and Medium Pressure Boiler Tube | Steam and boiler manufacturing |
| Hydraulic Pillar Service | Hydraulic support |
| Auto Semi-shaft Casing | Auto sem-shaft casing |
| Line Pipe | Oil and gas conveying |
| Tubing and Casing | Oil and gas conveying |
| Drill Pipes | Well drilling |
| Geological Drilling Pipe | Geological drilling |
| Furnace tubes, heat exchangers tubes | Furnace tubes, heat exchangers |
Tolerances of carbon seamless steel pipe
| Pipe types | Pipe sizes(mm) | Tolerances |
| Hot rolled | OD<50 | ±0.50mm |
| OD≥50 | ±1% | |
| WT<4 | ±12.5% | |
| WT 4~20 | +15%, -12.5% | |
| WT>20 | ±12.5% | |
| Cold drawn | OD 6~10 | ±0.20mm |
| OD 10~30 | ±0.40mm | |
| OD 30~50 | ±0.45 | |
| OD>50 | ±1% | |
| WT≤1 | ±0.15mm | |
| WT 1~3 | +15%, -10% | |
| WT >3 | +12.5%, -10% |
Excellent material
The product is made of excellent material
Not easy to deform,
Reliable quality
Various specifications
Can be customized according to customer needs
Accurate size
Cutting to length
The wall thickness difference is small
Process display
1.Q:Are you a factory or trading company?
A: We are a factory.
2.Q:Where is your factory located?
A: Our factory is located in Cangzhou City, China.
3.Q:Can I get some samples?
A: Yes,we are honored to supply you free samples.
4.Q:How does your factory do regarding quality control?
A: "Quality is our culture" Inspection and trace back No. We serious control the quality from raw material
to finished pipes.
5. Q: Price high ?
A: Our price is workable. We had tried use auto equipment to save Workers cost. and control other costs.
6. Q: After sales service.
A: We guarantee the quality and quantity, any problem, we will be responsible for the end, guarantee your satisfaction.
