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C Mn Si Cr Mo
鈮�0.19 0.5-1.0 鈮�0.50 9.5-12.0 0.80-1.10
Ni V W S P
0.40-1.10 0.20-0.40 0.400-0.70 鈮�0.030 鈮�0.035
鐔旀暦閲戝爆鍔涘(xu茅)鎬ц兘 锛�730~750鈩兠�4h锛岀┖鍐凤級
瑭﹂(y脿n)闋�(xi脿ng)鐩� Rm/MPa A(%)
淇濊瓑鍊� 鈮�730 鈮�15
鍙冭€冮浕娴�
鐒婃鐩村緫/mm 2.5 3.2 4.0 5.0
鐒婃帴闆绘祦/A 60-90 90-120 150-180 180-210
娉ㄦ剰浜嬮爡(xi脿ng)锛�
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C Mn Si Ni
0.05-0.10 鈮�1.0 鈮�0.9 鈮�0.40
Cr Mo S P
8.00-10.50 0.85-1.20 鈮�0.030 鈮�0.030
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瑭﹂(y脿n)闋�(xi脿ng)鐩� Rm/MPa ReL/Rp0.2/Mpa A(%) KV2/J(甯告韩)
淇濊瓑鍊� 鈮�550 鈮�460 鈮�19 鈮�27
钘ョ毊鍚按閲忥細鈮�0.20%銆�
X灏勭窔鎺㈠偡瑕佹眰锛氣厾绱�(j铆)銆�
鍙冭€冮浕娴�
鐒婃鐩村緫/mm 2.5 3.2 4.0 5.0
鐒婃帴闆绘祦/A 70-90 80-110 140-160 160-200
娉ㄦ剰浜嬮爡(xi脿ng)锛�
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