無(wú)縫鋼管生產(chǎn)廠(chǎng)家抗拉強(qiáng)度\377x55大口徑厚壁鋼管價(jià)格
無(wú)縫鋼管生產(chǎn)廠(chǎng)家抗拉強(qiáng)度\377x55大口徑厚壁鋼管價(jià)格——————盡在無(wú)錫豪鑫天鋼鐵貿(mào)易有限公司0510-88264800 13376216888 http;//hg820.cn
氣瓶用大口徑無(wú)縫鋼管
標(biāo)準(zhǔn)
GB18248-2000 —— 氣瓶用無(wú)縫鋼管
Q/BQB 250-2003—— 氧氣瓶用無(wú)縫鋼管
ASTM A519 —— Seamless Carbon and Alloy Steel Mechanical Tubing
用途
用于制造氣瓶用熱軋無(wú)縫鋼管
主要生產(chǎn)鋼管牌號(hào)
37Mn、34CrMo4
力學(xué)性能
標(biāo)準(zhǔn) 牌號(hào) 抗拉強(qiáng)度(MPa) 屈服強(qiáng)度(MPa) 伸長(zhǎng)率(%) 沖擊功Akv(J)
Q/BQB 250 37Mn ≥750 ≥630 ≥16 ≥55
Q/BQB 250 34CrMo4 ≥980 ≥835 ≥12 ≥63
89x30 159x25 219x20 273x22 377x35
108x16 159x30 219x25 273x25 377x40
108x20 159x35 219x28 273x28 377x45
108x26 159x40 219x30 273x30 377x50
108x30 168x20 219x35 273x32 377x55
114x18 168x25 219x40 273x35 377x60
114x22 168x28 219x45 273x40 406x20
114x28 168x30 219x48 273x45 406x26
133x18 168x35 219x50 273x50 406x32
133x22 168x40 203x20 273x55 406x40
133x26 180x16 203x30 325x20 426x20
133x30 180x20 203x40 325x25 426x25
140x20 180x25 245x20 325x30 426x30
140x25 180x30 245x25 325x35 426x35
140x28 180x35 245x28 325x40 426x40
140x32 180x40 245x30 325x45 426x50
140x40 194x18 245x35 325x50 426x60
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