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C锛�0.1-0.15
Si锛氣墹0.30
Mn锛�0.30-0.80
P锛氣墹0.015
S锛氣墹0.010
N锛氣墹0.012
Cr锛�2.00-2.50
Cu锛氣墹0.25
Mo锛�0.90-1.10
Mo锛氣墹0.30
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灞堟湇寮�(qi谩ng)搴︼細
鍘氬害t鈮�250鏅�(sh铆)锛屽眻鏈嶅挤(qi谩ng)搴︹墺355MPa锛�
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浼搁暦(zh菐ng)鐜嘇%锛氫几闀�(zh菐ng)鐜団墺18
娌栨搳瑭﹂(y脿n)锛�
-20鈩冩檪(sh铆)锛屾矕鎿婂姛鈮�27J
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20鈩冩檪(sh铆)锛屾矕鎿婂姛70J
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