鋼管種類 | 外徑(D) | 壁厚(S) | ||
鋼管外徑(mm) | 允許偏差(mm) | 鋼管壁厚(mm) | 允許偏差(mm) | |
熱軋管 | >219~457 | ±1.0% | ≤20 | -10%,+12.5% |
>20~40 | -10%,+10% | |||
>457~1066 | ±0.9% | >40~70 | -7%,+9% | |
>70~120 | -6%,+8% |
力學性能:
標準 | 牌號 | 抗拉強度(MPa) | 屈服強度(MPa) | 伸長率(%) | 沖擊功(J) | 硬度 | |
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 | / | ||
ASME SA106 | SA106B | ≥415 | ≥240 | ≥22 | ≥35 | / | |
SA106C | ≥485 | ≥275 | ≥20 | ≥35 | / | ||
ASME SA333 | SA333Ⅰ級 | ≥380 | ≥205 | ≥28 | -45≥18 | / | |
ASME SA335 | SA335 P11 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB | |
SA335 P12 | ≥415 | ≥220 | ≥22 | ≥35 | ≤163HB | ||
SA335 P22 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB | ||
SA335 P5 | ≥415 | ≥205 | ≥22 | ≥35 | ≤187HB | ||
SA335 P91 | 585~760 | ≥415 | ≥20 | ≥35 | ≤250HB | ||
SA335 P92 | ≥620 | ≥440 | ≥20 | ≥35 | 250HB | ||
DIN17175 | ST45.8/Ⅲ | 410~530 | ≥255 | ≥21 | ≥27(DVM) | / | |
15Mo3 | 450~600 | ≥270 | ≥22 | ≥34(DVM) | / | ||
13CrMo44 | 440~590 | ≥290 | ≥22 | ≥34(DVM) | / | ||
10CrMo910 | 480~630 | ≥280 | ≥20 | ≥34(DVM) | / | ||
EN10216-2 | 15NiCuMoNb5-6-4 (WB36) | 610~780 | ≥440 | ≥19 | ≥40 | / |
化學成分:
標準 | 牌號 | 化學成分(%) | |||||||||||||
C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | Al | W | 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 | 0.17~0.25 | 0.17~0.37 | 0.70~1.00 | ≤0.030 | ≤0.030 | ≤0.25 | ≤0.15 | ≤0.20 | ≤0.25 | ≤0.08 | |||||
25MnG | 0.23~0.27 | 0.17~0.37 | 0.70~1.00 | ≤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 | |||||
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 SA106 | SA106B | 0.17~0.25 | ≥0.1 | 0.70~1.00 | ≤0.030 | ≤0.030 | |||||||||
SA106C | 0.23~0.27 | ≥0.1 | 0.70~1.00 | ≤0.030 | ≤0.030 | ||||||||||
ASME SA333 | SA333Ⅰ級 | 0.09~0.12 | / | 0.7~1.00 | ≤0.020 | ≤0.010 | |||||||||
SA333Ⅵ級 | 0.09~0.12 | ≥0.1 | 0.9~1.10 | ≤0.020 | ≤0.010 | ||||||||||
ASME SA335 | SA335 P11 | 0.05~0.15 | 0.50~1.0 | 0.30~0.60 | ≤0.030 | ≤0.030 | 1.00~1.50 | 0.50~1.00 | |||||||
SA335 P12 | 0.05~0.15 | ≤0.50 | 0.30~0.61 | ≤0.030 | ≤0.030 | 0.80~1.25 | 0.44~0.65 | ||||||||
SA335 P22 | 0.05~0.15 | ≤0.50 | 0.30~0.60 | ≤0.030 | ≤0.030 | 1.90~2.60 | 0.87~1.13 | ||||||||
SA335 P5 | ≤0.15 | ≤0.50 | 0.30~0.60 | ≤0.030 | ≤0.030 | 4.00/6.00 | 0.45/0.65 | ||||||||
SA335 P91 | 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 | |||
SA335 P92 | 0.07~0.13 | ≤0.50 | 0.30~0.60 | ≤0.020 | ≤0.010 | 8.50~9.50 | 0.30~0.60 | 0.30~0.60 | ≤0.40 | 0.15~0.25 | ≤0.015 | 1.50~2.00 | 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 | ≤0.30 | ||||||||
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 | |||||
EN1021 6-2 | 15NiCuMoNb5-6-4 (WB36) | ≤0.17 | 0.25~0.50 | 0.80~1.20 | ≤0.025 | ≤0.020 | ≤0.30 | 0.25~0.50 | 0.50~0.80 | 1.00~1.30 | ≤0.05 | 0.015~0.045 |