Seamless Steel Pipe

Seamless steel pipe is perforated by the whole round steel,and the steel pipe
with no weld on the surface is called seamless steel pipe. Seamless steel pipe
is mainly used for petroleum geological drilling pipe, petrochemical cracking
pipe,boiler furnace pipe,bearing pipe and high-precision structural steel pipe
for automobiles,tractors and aviation.
Paremeter:
Standard Grade Tensile strength Yield strength Elongation
Impact energy Hardness
GB3087 10 335~475 ≥195 ≥24 / /
20 410~550 ≥245 ≥20 / /
GB5310 20G 410~550 ≥245 ≥24 ≥35 /
20MnG ≥415 ≥240 ≥22 ≥35 /
25MnG ≥485 ≥275 ≥20 ≥35 /
15CrMoG 440~640 ≥235 ≥21 ≥35 /
12Cr2MoG 450~600 ≥280 ≥20 ≥35 /
12Cr1MoVG 470~640 ≥255 ≥21 ≥35 /
10Cr9Mo1VNb ≥585 ≥415 ≥20 ≥35 /
ASMESA106 SA106B ≥415 ≥240 ≥22 ≥35 /
SA106C ≥485 ≥275 ≥20 ≥35 /
ASMESA333 SA3331 ≥380 ≥205 ≥28 -45℃≥18 /
SA3334 ≥415 ≥240 ≥22 -45℃≥18 /
ASMESA335 SA335 P11 ≥415 ≥205 ≥22 ≥35 ≤163HB
SA335 P12 ≥415 ≥220 ≥22 ≥35 ≤163HB
SA335 P22 ≥415 ≥205 ≥22 ≥35 ≤163HB

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