Manufacturing Process Of Seamless Steel Pipe:
Billets and coils are delivered to the pipe mill ready to be made into carbon steel pipe. Depending on the capabilities of the pipe mill and the end use of the final product, the casts will be formed into pipe by means of four distinct different manufacturing.Seamless carbon steel pipe has, as its name implies, no longitudinal weld seam. It is, in essence, one solid homogeneous piece of steel. A solid billet is simply heated and then stretched over a series of mandrels until the pipe has achieved its desired diameter and wall thickness.
ASTM Standard for seamless steel pipe
| Executive Standard |
Grade / Material |
Product Name |
| ASTM A53 |
A, B |
Black and Hot-Dipped Zinc-Coated Steel Pipes Welded and Seamless |
| ASTM A106 |
A, B |
Seamless Carbon Steel for High Temperature Service |
| ASTM A179 |
Low Carbon Steel |
Seamless Cold-Drawn Low-Carbon Steel Heat Exchanger and Condenser Tubes |
| ASTM A192 |
Low Carbon Steel |
Seamless Carbon Steel Boiler Tubes for High Pressure |
| ASTM A210 |
A1, C |
Seamless Medium-Carbon and Alloy Steel Boiler and Superheater Tubes |
| ASTM A213 |
T5, T11, T12, T22 |
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes |
| TP 347H |
| ASTM A312 |
TP304/304L, TP316/316L |
Seamless Steel Pipe for Stainless Materials |
| ASTM A333 |
Gr.6 |
Seamless and Welded Steel Pipe for Low-Temperature Service |
| ASTM A335 |
P9, P11, P22 |
Seamless Ferritic Alloy Steel Pipe for High-Temperature Service |
| ASTM A519 |
41,304,140 |
Seamless Carbon and Alloy Steel for Mechanical Tubing |
| ASTM A789 |
|
Seamless Ferritic/Austenitic Stainless Steel Tubing for General Service |
API Standard for seamless steel pipe
| Executive Standard |
Grade / Material |
Product Name |
| API Spec 5CT |
J55, K55, N80, L80,C90, C95, T95, P110, M65 |
Spectification for Casing and Tubing |
| API Spec 5L PSL1 / PSL2 |
A,B X42, X46, X52, X56, X60, X65,. X70 |
Specification for Line Pipe |
DIN / EN Standard for seamless steel pipe
| Executive Standard |
Grade / Material |
Product Name |
| DN 17175/EN10216-2 |
ST35, ST45, ST52, 13CrMo44 |
Seamless Steel Tube for Elevated Temperature |
| DIN 2391/EN10305-1 |
St35, St45, St52 |
Cold Drawn Seamless Precision Pipe |
| DIN 1629/EN10216-1 |
St37, St45, St52 |
Seamless Circular unalloyed Steel Tubes Subject to Special Requirments |
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