| 材料名称：(高碳铬不锈)轴承钢 |
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| 牌号：9Cr18 |
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| 标准：GB/T 3086-1982 |
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●特性及适用范围： |
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| 淬火后具有高硬度、高耐磨性和较好的耐蚀性、耐高、低温的尺寸稳定性。可锻、但焊接性能差。可制作在海水、河水、蒸馏水、硝酸、蒸气以及海洋等腐蚀介质中工作的轴承、在-253～350 ℃以下工作的耐高、低温轴承。还可用作高质量的刀具和其他耐磨损、耐腐蚀的零件。 |
●化学成份： |
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碳 C ：
0.90～1.00 |
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| 硅 Si：≤0.80 |
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| 锰 Mn：≤0.80 |
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| 硫 S ：≤0.030 |
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| 磷 P ：≤0.035 |
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铬 Cr：
17.0～19.0(允许偏差:±0.15) |
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| 镍 Ni：允许残余含量≤0.30 |
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| 铜 Cu：允许残余含量≤0.25 |
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| 注：允许残余含量Ni+Cu≤0.50 |
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●力学性能： |
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| 抗拉强度 σb (MPa)：直径≤16时,588(60)～784(80) |
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| 硬度 ：直径＞16时,197～241HB,压痕直径为4.3～3.9 |
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●热处理规范及金相组织： |
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●交货状态：以热轧（锻制）退火（RT）、冷拉退火（LT）和冷拉磨光（LM）状态交货。交货状态应在合同中注明。 |
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| 材料名称：(高碳铬不锈)轴承钢 |
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