Shaped seamless steel pipe--U-shaped heat exchanger tubes with Seamless steel pipe

GB/T 151----------China National Standard
GB/T 8163--------- China National Standard
GB/T 14976-------- China National Standard
GB 3087------------China National Standard
GB 5310------------China National Standard


Used in boilers and heat exchangers for petrochemical industry.

The main production steel grades:
102020G15CrMoG12Cr1MoVG07Cr2AlMo09CrMoAl1Cr18Ni9Ti0Cr18Ni9 etc. 

Chemical composition, mechanical properties:

Refer to the appropriate national standards or foreignstandards.