M50 NIL優質合金軸承鋼圓鋼
發布者：yhjs999 發布時間：2024-01-11 09:44:43
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牌號
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M50 NIL優質合金軸承鋼圓鋼
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對應標準
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SAE AMS 6278D-2011
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軸承用優質航空質量級雙真空熔化鋼、鋼棒、鍛件和管材
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Steel, Bar, Forgings, and Tubing 4.1Cr-3.4Ni-4.2Mo-1.2V(0.11-0.15C) Premium Aircraft-Quality for Bearing Applications Double Vacuum Melted
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歸類
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合金鋼
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性能
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易切削性
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標簽
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優質合金鋼 軸承鋼
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M50 NIL 化學元素成分含量(%)
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成分
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C
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Si
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Mn
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P
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S
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Cr
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Ni
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Cu
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Mo
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W
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V
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Co
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最小值
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0.11
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0.1
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0.15
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-
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-
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4
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3.2
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-
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4
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1.13
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-
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最大值
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0.15
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0.25
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0.35
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0.015
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0.01
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4.25
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3.6
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0.1
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4.5
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0.15
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1.33
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0.25
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成分與UNS K91231相似
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M50 NIL 機械性能
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條件
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熱處理或狀態
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抗拉強度
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硬度
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σb
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HBW
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Mpa
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棒材d≤12.7
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冷加工
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≤862
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HRC
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≤27
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棒材d>12.7
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熱加工+退火
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HB
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≤255
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棒材d>12.7
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冷加工
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HB
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≤269
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機械管
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冷加工
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HB
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≤272
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機械管
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熱加工
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HB
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≤248
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