标准:
GB24512.1——中国国家标准
GB24512.2——中国国家标准
用途:
主要生产钢管牌号:
HD245Cr、HD12Cr2Mo、HD15Ni1MnMoNbCu、106B、P22、Tu48C、P280Gh
组距:
钢管种类 |
外径(D) |
壁厚(S) |
热轧管 |
219~1200 |
8~130 |
力学性能:
标准 | 牌号 | 抗拉强度(MPa) | 屈服强度(MPa) | 伸长率(%) | 冲击 |
GB24512.1 | HD245Cr | 410~550 | ≥245 | ≥24 | |
GB24512.2 | HD12Cr2Mo | 450~600 | ≥280 | ≥22 | |
HD15Ni1MnMoNbCu | 620~780 | ≥440 | ≥19 | ||
ASME SA106 | 106B | ≥415 | ≥240 | 见ASME SA106表2 | |
ASME SA335 | P22 | ≥415 | ≥205 | 见ASME SA335表4 | |
NF A49-213 | Tu48C | 470-570 | ≥275 | Rm(A-2)≥10500 | |
M1152 | P280GH | 470-570 | ≥275 |
Rm(A-2)≥10500 并且≥21 |
0℃或-20℃冲击≥60J(最小单值≥40J) |
化学成分:
标准 | 牌号 | 化学成分(%) | |||||||||||||||
C | Si | Mn | P | S | Cr | Mo | Ni | Nb | N | Sn | Cu | V | Sn | Al | Ceq | ||
GB24512.1 | HD245Cr | ≤0.22 | 0.15~0.39 | ≤1.04 | ≤0.025 | ≤0.020 | 0.18~0.33 | ≤0.15 | ≤0.25 | - | - | ≤0.030 | ≤0.20 | ≤0.08 | |||
GB24512.2 | HD12Cr2Mo | 0.07~0.16 | ≤0.54 | 0.37~0.73 | ≤0.030 | ≤0.020 | 1.9~2.6 | 0.86~1.24 | ≤0.30 | - | - | - | ≤0.20 | ≤0.08 | |||
HD15Ni1MnMoNbCu | 0.09~0.18 | 0.21~0.54 | 0.76~1.24 | ≤0.030 | ≤0.020 | 0.14~0.35 | 0.21~0.44 | 0.95~1.35 | 0.010~0.030 | ≤0.020 | - | 0.45~0.85 | ≤0.02 | ||||
ASME SA106 | 106B | ≤0.30 | ≥0.10 | 0.29~1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.15 | ≤0.40 | - | - | - | ≤0.40 | ≤0.08 | |||
ASME SA335 | P22 | 0.05-0.15 | ≤0.50 | 0.30-0.60 | ≤0.025 | ≤0.025 | 1.90~2.60 | 0.87~1.13 | |||||||||
NF A49-213 | Tu48C熔炼分析 | ≤0.22 | 0.10-0.35 | 0.65-1.25 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.030 | |||||||||
Tu48C成品分析 | ≤0.24 | 0.09-0.40 | 0.60-1.30 | ≤0.040 | ≤0.040 | ≤0.25 | ≤0.030 | ||||||||||
M1152 | P280GH熔炼分析 | ≤0.20 | 0.10-0.35 | 0.80-1.60 | ≤0.020 | ≤0.015 | ≤0.25 | ≤0.10 | ≤0.50 | ≤0.25 | ≤0.030 | 0.020-0.050 | ≤0.48 | ||||
P280GH成品分析 | ≤0.22 | 0.10-0.40 | 0.80-1.60 | ≤0.025 | ≤0.020 | ≤0.25 | ≤0.10 | ≤0.50 | ≤0.25 | ≤0.030 | 0.020-0.050 | ≤0.48 |