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JIS G3452 Carbon Steel Pipes

JIS G3452 Carbon Steel Pipes

Manufacturing method of JIS G3452 Carbon Steel Pipes 1.The pipe shall be manufactured by butt welding or electric resistance welding. 2.The pipe shall stay as manufactured.However,cold-finished pipe shall be annealed affter manufacture. 3.Both ends of the pipe of nominal size 300A or smaller...

Description

Manufacturing method of JIS G3452 Carbon Steel Pipes

1.The pipe shall be manufactured by butt welding or electric resistance welding.

2.The pipe shall stay as manufactured.However,cold-finished pipe shall be annealed affter manufacture.

3.Both ends of the pipe of nominal size 300A or smaller shall be threaded or plain-ended and those for 350 A or large shall be plain-ended.When required by the purchaser,the pipe may be furnished with bevel ends.

4.For threaded pipe,taper threads specified in JIS 0203 shall be applied on both ends,and a socket as in JIS B2302 or JIS B2301 shall be screwed into one end of the threads.The other end with a socket not screwed shall be provided with a thread protecting ring.For the smaller pipes this part may be protected by other suitable means.When specified by the purchaser,however,the thread pipe may dispense with such a socket.

5.For galvanized pipe,the pipe and the socket shall be galvanized before threading.In this case,the black pipe and the socket that have passed inspection shall be thoroughly cleaned by sand blasting,pickling,etc.and then galvanized by a hot dipped galvanized process.


Surface treatment of JIS G3452 Carbon Steel Pipes

Bare, varnish paintin, galvanized,3PE coating as per customer's requirement.


Test of JIS G3452 Carbon Steel Pipes

Flatness,bendability,hydrostatic test or nondestructive test


Product show of JIS G3452 Carbon Steel Pipes

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