高壓（低中壓）鍋爐及石化工業用小口徑無縫鋼管標準：GB3087 —— 中國國家標準GB5310 —— 中國國家標準ASME SA210 —— 美國鍋爐及壓力容器規范ASME SA213 —— 美國鍋爐及壓力容器規范DIN17175 —— 聯邦德國工業標準用途：用于低中壓鍋爐（工作壓力一般不大于5.88Mpa，工作溫度在450℃以下）的受熱面管子；用于高壓鍋爐（工作壓力一般在9.8Mpa以上，工作溫度在450℃～650℃之間）的受熱面管子、省煤器、過熱器、再熱器、石化工業用管等。主要生產鋼管牌號：10、20、20G、20MnG、25MnG、15CrMoG、12Cr2MoG、12Cr1MoVG、12Cr2MoWVTiB、10Cr9Mo1VNb、SA210A1、SA210C、SA213 T11、SA213 T12、SA213 T22、SA213 T23、SA213 T91、SA213 T92、ST45.8/Ⅲ、15Mo3、13CrMo44、10CrMo910等尺寸公差:
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％ | |
力學性能：
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 | / |
化學成分:
| 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 | |||||||
| 12Cr1MoV | 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 | 0.15～0.30 | ||||||
| 12Cr2MoWVTiB | 0.08～0.15 | 0.45～0.75 | 0.45～0.65 | ≤0.030 | ≤0.030 | 1.60～2.10 | 0.50～0.65 | ≤0.20 | ≤0.30 | 0.28～0.42 | 0.30～0.55 | 0.08～0.15 | B 0.002～0.008 | |||
| 10Cr9Mo1VNb | 0.08～0.12 | 0.20～0.50 | 0.30～0.60 | ≤0.020 | ≤0.010 | 8.00～9.50 | 0.85～1.05 | ≤0.20 | ≤0.40 | 0.18～0.25 | ≤0.015 | 0.06～0.10 | 0.03～0.07 | |||
| ASME SA210 | SA210A-1 | 0.13～0.19 | ≥0.1 | 0.45～0.65 | ≤0.030 | ≤0.030 | ||||||||||
| SA210C | 0.18～0.24 | ≥0.1 | 0.80～1.10 | ≤0.030 | ≤0.030 | |||||||||||
| ASME SA213 | SA213 T11 | 0.05～0.15 | 0.50～1.0 | 0.30～0.60 | ≤0.030 | ≤0.030 | 1.00～1.50 | 0.50～1.00 | ||||||||
| SA213 T12 | 0.05～0.15 | ≤0.50 | 0.30～0.61 | ≤0.030 | ≤0.030 | 0.80～1.25 | 0.44～0.65 | |||||||||
| SA213 T22 | 0.05～0.15 | ≤0.50 | 0.30～0.60 | ≤0.030 | ≤0.010 | 1.90～2.60 | 0.87～1.13 | |||||||||
| SA213 T23 | 0.04～0.10 | ≤0.50 | 0.10～0.60 | ≤0.030 | ≤0.030 | 1.90～2.60 | 0.05～0.30 | ≤0.030 | 1.45～1.75 | B0.0005～0.006 | 0.02～0.08 | ≤0.040 | ||||
| SA213 T91 | 0.08～0.12 | 0.20～0.50 | 0.30～0.60 | ≤0.020 | ≤0.010 | 8.00～9.50 | 0.85～1.05 | ≤0.40 | 0.18～0.25 | ≤0.015 | 0.06～0.10 | 0.03～0.07 | ||||
| SA213 T92 | 0.07～0.13 | ≤0.50 | 0.30～0.60 | ≤0.020 | ≤0.010 | 8.50～9.50 | 0.30～0.60 | ≤0.40 | 0.15～0.25 | ≤0.015 | 1.50～2.00 | B 0.001～0.006 | 0.04～0.09 | 0.03～0.07 | ||
| DIN 17175 | ST45.8/Ⅲ | ≤0.21 | 0.10～0.35 | 0.40～1.20 | ≤0.040 | ≤0.040 | ||||||||||
| 15Mo3 | 0.12～0.20 | 0.10～0.35 | 0.40～0.80 | ≤0.035 | ≤0.035 | 0.25～0.35 | ||||||||||
| 13CrMo44 | 0.10～0.18 | 0.10～0.35 | 0.40～0.70 | ≤0.035 | ≤0.035 | 0.70～1.10 | 0.45～0.65 | |||||||||
| 10CrMo910 | 0.08～0.15 | ≤0.50 | 0.30～0.70 | ≤0.025 | ≤0.020 | 2.00～2.50 | 0.90～1.10 | ≤0.30 | ≤0.30 | ≤0.015 | ||||||
