网友 1 最佳答案 回答者:网友 ASTM A487 4C相当于按强度选材的中国钢材材料具体为as>=276MPa A148 class 80-40 ,as>=345MPa A148 class 80-50 。 as>=414MPa A148 class 80-60 ,as>=586MPa A148 cl洲互笔冷次听ass 80-85 ,as>=655MPa A148 class 360问答80-95 ,as>=862MPa A148 class ...
fr=ala0_1_1</a>ASTM A487(标准号)中grade 4 class C规定的承压铸钢件化学成分:C≤0.30%;Mn≤1.00%;Si≤0.80%;S≤0.045%;P≤0.04%,Ni:0.4-0.8%;Cr:0.4-0.8%;Mo:0.15-0.30%;其余残余元素:Cu≤0.50%,W≤0.10%,V≤0.03%,残余元素总量不超过60
ASTM A487 4C相当于按强度选材的中国钢材。具体为:as>=276MPa A148 class 80-40 as>=345MPa A148 class 80-50 as>=414MPa A148 class 80-60 as>=586MPa A148 class 80-85 as>=655MPa A148 class 80-95 as>=862MPa A148 class 80-125 as>=1000MPa A148 class 80-145目前常用的...
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ASTMA487--4C是什么材料ASTMA487--4C是什么材料是阀门的阀体一种材料 目前常用的ASTM金属力学性能测试...
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ASTMA4874C相当于按强度选材的中国钢材具体为as>=276MPaA148class80-40as>=345MPaA148class80-50as>=414MPaA148class80-60as>=586MPaA148class80-85as>=655MPaA148class80-95as>=862MPaA148class80-125as>=1000MPaA148class80-145依据JB/T6443-2002石油、化学和气体工业用离心压缩机 ...
ASTM A487 4C相当于按强度选材的中国钢材材料具体为as>=276MPa A148 class 80-40 ,as>=345MPa A148 class 80-50 。as>=414MPa A148 class 80-60 ,as>=586MPa A148 class 80-85 ,as>=655MPa A148 class 80-95 ,as>=862MPa A148 class 80-125 ,as>=1000MPa A148 class 80-...
材料铸钢每astm A487-4C 相关内容 aHas always been very good 总是非常好[translate] awhy don't they just let thier kids be kids 为什么不要他们让他们的孩子是孩子[translate] agrant details 津贴细节[translate] awhich devoted a chapter to health care, 哪致力章节于医疗保健,[translate] ...
This standard is issued under thefixed designation A487/A487M;the number immediately following the designation indicates the year of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon(e)...