無(wú)錫鍋爐管工作壓力不大于9.8Mpa
標(biāo)準(zhǔn):
GB5310--中國(guó)國(guó)家標(biāo)準(zhǔn)
用途:
用于高壓鍋爐(工作壓力一般不大于9.8Mpa,工作溫度在450℃-650℃之間)的受熱面管子、集箱、省煤器、過(guò)熱器、再熱器等。(P<9.8MPa,450℃<T<650℃)
機(jī)械性能:
標(biāo)準(zhǔn) |
牌號(hào)/抗拉強(qiáng)度(Mpa) |
屈服強(qiáng)度(Mpa) |
伸長(zhǎng)率(%) | |
5310-95 |
20G |
410~550 |
≥ 245 |
≥ 24 |
25MnG |
≥ 415 |
≥ 240 |
≥ 22 | |
15MoG |
450~600 |
≥ 270 |
≥ 22 | |
15CrMoG |
440~640 |
≥ 235 |
≥ 21 | |
12Cr2MoG |
450~600 |
≥ 280 |
≥ 20 | |
12Cr1MoVG |
470~640 |
≥ 255 |
≥ 21 |
化學(xué)成份:
標(biāo)準(zhǔn) |
牌號(hào) |
化學(xué)成分 | |||||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
|||
GB5310 |
20G |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
≤0.030 |
≤0.030 |
/ |
/ |
≤0.20 |
≤0.25 |
/ |
20MnG |
0.17-0.24 |
0.17-0.37 |
0.70-1.00 |
≤0.030 |
≤0.030 |
/ |
/ |
≤0.20 |
≤0.25 |
/ | |
15MoG |
0.12-0.18 |
0.17-0.37 |
0.40-0.80 |
≤0.030 |
≤0.030 |
/ |
0.25-0.35 |
≤0.20 |
≤0.30 |
/ | |
15CrMoG |
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 |
/ | |
12Cr1MoVG |
0.08-0.15 |
0.17-0.37 |
0.40-0.70 |
≤0.030 |
≤0.030 |
0.90-1.20 |
0.25-0.35 |
≤0.20 |
≤0.30 |
0.15-0.35 |
|