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鏉愭枡鍚嶇ū锛� 55Si2Mn
妯�(bi膩o)婧�(zh菙n)锛欸B/T 1222-1984
鈼�鐗规€у強閬╃敤鑼冨湇锛�
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鈼�鍖栧(xu茅)鎴愪唤锛�
纰� C 锛�0.52锝�0.60
纭� Si锛�1.50锝�2.00
閷� Mn锛�0.60锝�0.90
纭� S 锛氣墹0.035
纾� P 锛氣墹0.035
閴� Cr锛氣墹0.35
閹� Ni锛氣墹0.35
閵� Cu锛氣墹0.25
鈼�鍔涘(xu茅)鎬ц兘锛�
鎶楁媺寮�(qi谩ng)搴� 蟽b (MPa)锛氣墺1274(130)
灞堟湇寮�(qi谩ng)搴� 蟽s (MPa)锛氣墺1176(120)
浼搁暦(zh菐ng)鐜� 未10 (锛�)锛氣墺6
鏂烽潰鏀剁府鐜� 蠄 (锛�)锛氣墺30
纭害 锛氱啽杌�,鈮�302HB;鍐锋媺+鐔辫檿鐞�,鈮�321HB
鈼�鐔辫檿鐞嗚(gu墨)鑼冨強閲戠浉绲勭箶锛�
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