汽车半轴用无缝钢管(YB/T5035)
中国标准:YB/T5035
钢级:45, 20Mn, 45Mn2, 40Mn13, 40Cr, 20CrNi3A
交货状态:热轧
规格范围:外径73MM-630MM ,壁厚4MM-35MM
公差:按照GB/T17396-2009标准
长度:按照订货要求
证书:GB/T19001-2008
● 化学成分(熔炼分析)%
牌号 | C | Si | Mn | Cr | Mo | B | Cu≤ | Ni | P |
≤ | |||||||||
45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | --- | --- | --- | 0.2 | --- | 0.03 |
20 Mn | 0.17-0.23 | 0.17-0.37 | 0.70-1.00 | ≤0.25 | --- | --- | 0.25 | ≤0.30 | 0.035 |
45 Mn2 | 0.42-0.49 | 0.17-0.37 | 1..40-1.80 | --- | --- | --- | 0.2 | --- | 0.03 |
40 Mn13 | 0.37-0.44 | 0.17-0.37 | 1.10-1.40 | --- | --- | 0.0005-0.0035 | 0.2 | --- | 0.03 |
40 Cr | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | 0.80-1.10 | --- | --- | 0.2 | --- | 0.03 |
20 Cr Ni3A | 0.17-0.24 | 0.17-0.37 | 0.30-0.60 | --- | --- | --- | --- | 2.75-3.15 | 0.03 |
● 机械性能
牌号 | 抗拉强度Mpa | 屈服点Mpa | 伸长率% | 布氏硬度HB |
45 | ≥590 | ≥335 | ≥14 | - |
20 Mn | ≥450 | ≥255 | ≥20 | - |
45 Mn2 | - | - | - | 217-269 |
40 Mn13 | - | - | - | 217-269 |
40 Cr | - | - | - | 217-269 |
20 Cr Ni3A | - | - | - | 217-269 |
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