18Cr2Ni4WA

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18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥
18Cr2Ni4WA (GB/T 3077-1988)  
     ●特性及适用范围:                                                      
                                                                           
                                                                           
     ●化学成份:                                                            
     碳 C : 0.13~0.19                                                      
     硅 Si: 0.17~0.37                                                      
     锰 Mn: 0.30~0.60                                                      
     硫 S : 允许残余含量≤0.025                                             
     磷 P : 允许残余含量≤0.025                                             
     铬 Cr: 1.35~1.65                                                      
     镍 Ni: 4.00~4.50                                                      
     铜 Cu: 允许残余含量≤0.025                                             
     钨 W : 0.80~1.20                                                      
                                                                           
     ●力学性能:                                                            
     抗拉强度      σb     (MPa):≥1175(120)                                
     屈服强度      σs     (MPa):≥835(85)                                  
     伸长率        δ5      (%):≥10                                       
     断面收缩率    ψ       (%):≥45                                       
     冲击功        Akv       (J):≥78                                       
     冲击韧性值    αkv  (J/cm2):≥98(10)                                   
     硬度                       :≤269HB                                    
     试样尺寸: 试样毛坯尺寸为15mm                                           
                                                                           
     ●热处理规范及金相组织:                                                
     热处理规范: 淬火:第一次950℃,第二次850℃,空冷;回火200℃,水冷、空冷。   
                                                                           
     ●交货状态:                                                            
     以热处理(正火、退火或高温回火)或不热处理状态交货,交货状态应在合同中注
 明。          
     18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥18Cr2Ni4WA价格¥
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