Carbon Steel Seamless Pipe

Carbon Steel Seamless Pipe 10#, 20# and other low-carbon steel seamless pipes are mainly used for fluid transportation pipelines( such as Oil, Gas ). Seamless pipes made of medium carbon steel such as 45# and 40Cr are used to manufacture mechanical parts, such as the stressed parts of automobiles and tractors. Generally, seamless pipes should be used to ensure strength and flattening tests.  

Standard :

National standard steel pipe implementation standard : 

1. Seamless steel pipe for structure: GB8162-2008 ;

2. Seamless steel pipe for conveying fluid: GB8163-2008 ;

3.Seamless steel pipe for boiler: GB3087-2008 ;

4. High pressure seamless pipe for boiler: GB5310-2008 (ST45.8-Ⅲ type) ;

5. High-pressure seamless steel pipes for fertilizer equipment: GB6479-1999 ;

6. Seamless steel pipe for geological drilling: YB235-70 ;

7. Seamless steel pipe for oil drilling: YB528-65 ;

8.Seamless steel pipe for petroleum cracking: GB9948-88 ;

9. Special seamless pipe for oil drill collar: YB691-70 ;

10.Seamless steel pipe for automobile half shaft: GB3088-1999 ;

11.Seamless steel pipe for ships: GB5312-1999 ;

12.Cold-drawn cold-rolled precision seamless steel pipe: GB3639-1999 ;