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妯�(bi膩o)婧�(zh菙n)锛欸B/T 3191-1998
鈼� 鐗规€у強閬╃敤鑼冨湇锛�
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鈼忓寲瀛�(xu茅)鎴愪唤锛�
閶� Al 锛氫綑閲�
纭� Si 锛氣墹0.30
閵� Cu 锛�2.6锝�3.2
閹� Mg锛�2.0锝�2.4
閶� Zn锛氣墹0.10
閷� Mn锛�0.45锝�0.7
閳� Ti 锛氣墹0.15
閻� Fe锛� 0.000锝� 0.300
娉細鍠€�(g猫):鈮�0.05;鍚堣▓(j矛):鈮�0.10
鈼忓姏瀛�(xu茅)鎬ц兘锛�
鎶楁媺寮�(qi谩ng)搴� 蟽b (MPa)锛氣墺430
姊濅欢灞堟湇寮�(qi谩ng)搴� 蟽0.2 (MPa)锛氣墺275
浼搁暦鐜� 未5 (锛�)锛氣墺10
娉� 锛氭鏉愬婧副鍚戝姏瀛�(xu茅)鎬ц兘
瑭︽ǎ灏哄锛氭鏉愮洿寰�(鏂规銆佸叚瑙掓鍏�(n猫i)鍒囧湏鐩村緫)鈮�150
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