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AMS 6471H簡介

牌號(hào) AMS 6471H
對(duì)應(yīng)標(biāo)準(zhǔn) SAE AMS 6471H-2014
真空熔煉氮化鋼棒材、鍛件和管材1.6Cr-0.35Mo-1.13Al(0.38~0.43C)(135 Mod)
Steel, Nitriding, Bars, Forgings, and Tubing 1.6Cr-0.35Mo-1.13Al(0.38~0.43C)(135 Mod) Consumable Electrode Vacuum Melted
歸類 合金鋼
說明 Application
These products have been used typically for nitrided parts requiring high surface hardness, resistance to heat, and less distortion than parts fabricated form steel requiring quenching to case harden and subject to very rigid inspection standards, but usage is not limited to such applications. This steel may be case hardened in dissociated ammonia gas to provide a minium case hardess of 900 HV.
AMS 6471H 化學(xué)元素成分含量(%)
成分 C Si Mn P S Cr Ni Cu Mo Al
最小值 0.38 0.2 0.5 - - 1.4 - - 0.3 0.95
最大值 0.43 0.4 0.8 0.015 0.015 1.8 0.25 0.35 0.4 1.3
碳當(dāng)量計(jì)算
AMS 6471H 機(jī)械性能
條件 熱處理或狀態(tài)
抗拉強(qiáng)度
σb
Mpa
硬度
HBW
棒材d≤12.7 冷拔 ≤931
棒材d>12.7 熱拔+退火 ≤229
棒材d>12.7 熱拔+退火 ≤269
管材 冷拔 HRC ≤25
管材 熱拔+退火 HRB ≤99
鍛件的機(jī)械性能按協(xié)議
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