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無錫鍋爐管價格行情無錫5310鍋爐無縫管市場廠家
|
鋼管種類 |
外徑(D) |
壁厚(S) |
| |
|
冷拔管 |
鋼管外徑(mm) |
允許偏差(mm) |
鋼管壁厚(mm) |
允許偏差(mm) |
|
＞30～50 |
±0.3 |
＞3～20 |
±10％ |
|
高壓 鍋爐管重量計算公式:
[(外徑-壁厚)*壁厚]*0.02466=kg/米(每米的重量)
|
標準 |
牌號 |
抗拉強度（MPa） |
屈服強度（MPa） |
伸長率（％） |
硬度 |
|
GB3087 |
10 |
335～475 |
≥195 |
≥24 |
/ |
|
20 |
410～550 |
≥245 |
≥20 |
/ |
|
|
GB5310 |
20G |
410～550 |
≥245 |
≥24 |
/ |
|
20MnG |
≥415 |
≥240 |
≥22 |
/ |
|
|
25MnG |
≥485 |
≥275 |
≥20 |
/ |
|
|
15CrMoG |
440～640 |
≥235 |
≥21 |
/ |
|
|
12Cr2MoG |
450～600 |
≥280 |
≥20 |
/ |
|
|
12Cr1MoVG |
470～640 |
≥255 |
≥21 |
/ |
|
|
12Cr2MoWVTiB |
540～735 |
≥345 |
≥18 |
/ |
|
|
10Cr9Mo1VNb |
≥585 |
≥415 |
≥20 |
/ |
|
|
ASME SA210 |
SA210A-1 |
≥415 |
≥255 |
≥30 |
≤143HB |
|
SA210C |
≥485 |
≥275 |
≥30 |
≤179HB |
|
|
ASME SA213 |
SA213 T11 |
≥415 |
≥205 |
≥30 |
≤163HB |
|
SA213 T12 |
≥415 |
≥220 |
≥30 |
≤163HB |
|
|
SA213 T22 |
≥415 |
≥205 |
≥30 |
≤163HB |
|
|
SA213 T23 |
≥510 |
≥400 |
≥20 |
≤220HB |
|
|
SA213 T91 |
≥585 |
≥415 |
≥20 |
≤250HB |
|
|
SA213 T92 |
≥620 |
≥440 |
≥20 |
≤250HB |
|
|
DIN17175 |
ST45.8/Ⅲ |
410～530 |
≥255 |
≥21 |
/ |
|
15Mo3 |
450～600 |
≥270 |
≥22 |
/ |
|
|
13CrMo44 |
440～590 |
≥290 |
≥22 |
/ |
|
|
10CrMo910 |
480～630 |
≥280 |
≥20 |
/ |
|
標準 |
牌號 |
化學成分（％） | ||||||||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V |
Al |
W |
Ti |
Nb |
N | ||
|
GB3087 |
10 |
0.07～0.13 |
0.17～0.37 |
0.38～0.65 |
≤0.030 |
≤0.030 |
0.3～0.65 |
/ |
≤0.25 |
≤0.30 |
/ |
/ |
||||
|
20 |
0.17～0.23 |
0.17～0.37 |
0.38～0.65 |
≤0.030 |
≤0.030 |
0.3～0.65 |
/ |
≤0.25 |
≤0.30 |
/ |
/ |
|||||
|
GB5310 |
20G |
0.17～0.24 |
0.17～0.37 |
0.35～0.65 |
≤0.030 |
≤0.030 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 |
|||||
|
20MnG |
0.17～0.24 |
0.17～0.37 |
0.70～1.00 |
≤0.030 |
≤0.030 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 |
||||||
|
25MnG |
0.18～0.24 |
0.17～0.37 |
0.80～1.10 |
≤0.030 |
≤0.030 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 |
||||||
|
15CrMo |
0.12～0.18 |
0.17～0.37 |
0.40～0.70 |
≤0.030 |
≤0.030 |
0.80～1.10 |
0.40～0.55 |
≤0.20 |
≤0.30 |
|||||||
|
12Cr2MoG |
0.08～0.15 |
≤0.50 |
0.40～0.70 |
≤0.030 |
≤0.030 |
2.00～2.50 |
0.90～1.20 |
≤0.20 |
≤0.30 |
| ||