4340鍚堥噾閶�
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鏉辫帪甯傞暦(zh菐ng)瀹夌櫨浣虫ā鍏烽嫾鏉愬皥妤�(y猫)鎵圭櫦(f膩)閵峰敭4340鍚堥噾閶煎強鍚勭ó鍏朵粬鍎�(y艒u)璩�(zh矛)鏉愯唱(zh矛)鍚堥噾閶兼潗
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ASTM4340鏄竴绋寲瀛�(xu茅)娣峰悎鐗╄唱(zh矛)锛屽煼(zh铆)琛屾(bi膩o)婧�(zh菙n)鐐� ASTM A29/A29M-04銆�
涓枃鍚�
ASTM4340
鍚堥噾绲�(ji茅)妲�(g貌u)閶�
4340
纰� C
0.38锝�0.43
纭� Si
0.15锝�0.35
灏�(du矛)鎳�(y墨ng)鍦�(gu贸)妯�(bi膩o)
40CrNiMoA
鍩�(zh铆)琛屾(bi膩o)婧�(zh菙n): ASTM A29/A29M-04
鈼忓寲瀛�(xu茅)鎴愪唤锛�
閷� Mn锛�0.60锝�0.90
纭� S 锛氬厑瑷辨畼浣欏惈閲忊墹0.040
纾� P 锛氬厑瑷辨畼浣欏惈閲忊墹0.035
閴� Cr锛�0.60锝�0.90
閹� Ni锛�1.65锝�2.00
閵� Cu锛氬厑瑷辨畼浣欏惈閲忊墹0.025
閴� Mo锛�0.20锝�0.30
鈼忓姏瀛�(xu茅)鎬ц兘锛�
鎶楁媺寮�(qi谩ng)搴� 蟽b (MPa)锛氣墺980(100)
灞堟湇寮�(qi谩ng)搴� 蟽s (MPa)锛氣墺835(85)
浼搁暦(zh菐ng)鐜� 未5 (%)锛氣墺12
鏂烽潰鏀剁府鐜� 蠄 (%)锛氣墺55
娌栨搳鍔� Akv (J)锛氣墺78
娌栨搳闊屾€у€� 伪kv (J/cm2)锛氣墺98(10)
纭害 锛�鈮�269HB
瑭︽ǎ灏哄锛氳│妯ｆ瘺鍧昂瀵哥偤25mm
鈼忕啽铏曠悊瑕�(gu墨)鑼冨強閲戠浉绲勭箶锛�
鐔辫檿鐞嗚(gu墨)鑼冿細娣伀850鈩�,娌瑰喎;鍥炵伀600鈩�,姘村喎銆佹补鍐�銆�
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