Shipbuilding

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 |
Carbon seamless steel pipe grade:
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 |