Seamless steel pipe and ordinary steel pipe were applied to where

Seamless steel pipe is divided into cold drawing and hot bar, but the surface has not been treated, seamless steel pipe is divided into several kinds, with its material and the implementation of the standard, the material has ordinary pipe, alloy tube, the implementation of the standard

1, the structure used for seamless steel pipe: GB8162-99

2, the transport of concrete seam steel pipe: GB8163-99

3, boiler seamless steel pipe: GB3087-1999

4, high pressure seamless pipe for boiler: GB5310-95 (ST45.8-ⅲ type)

5, fertilizer equipment with high pressure seamless steel pipe: GB6479-1999 6, to

Seamless steel pipe for quality drilling: YB235-70

7, oil drilling with seamless steel pipe: YB528-65

8, Seamless steel pipe for oil cracking: GB9948-88

9, oil drill collar for seamless pipe: YB691-70

10, automotive axle with seamless steel pipe:


11, ship seamless steel pipe: GB5312-1999

12, cold drawn cold rolled precision seamless steel pipe: GB3639-1999

13, a variety of alloy tube 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMov, 20G,

40Cr, 12Cr1MoV, 15CrMo steel pipe according to the production process is divided into two types of seamless steel pipe and welded steel pipe. Seamless steel pipe is made of steel ingot, tube or steel bar perforated seamless steel pipe; pipe is hot-rolled or cold-rolled steel plate and strip welded, can be straight seam welding, but also spiral welding.

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