18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥
18Cr2Ni4WA (GB/T 3077-1988)  
     ●特性及適用范圍:                                                      
                                                                           
                                                                           
     ●化學成份:                                                            
     碳 C : 0.13～0.19                                                      
     硅 Si: 0.17～0.37                                                      
     錳 Mn: 0.30～0.60                                                      
     硫 S : 允許殘余含量≤0.025                                             
     磷 P : 允許殘余含量≤0.025                                             
     鉻 Cr: 1.35～1.65                                                      
     鎳 Ni: 4.00～4.50                                                      
     銅 Cu: 允許殘余含量≤0.025                                             
     鎢 W : 0.80～1.20                                                      
                                                                           
     ●力學性能:                                                            
     抗拉強度      σb     (MPa):≥1175(120)                                
     屈服強度      σs     (MPa):≥835(85)                                  
     伸長率        δ5      (％):≥10                                       
     斷面收縮率    ψ       (％):≥45                                       
     沖擊功        Akv       (J):≥78                                       
     沖擊韌性值    αkv  (J/cm2):≥98(10)                                   
     硬度                       :≤269HB                                    
     試樣尺寸: 試樣毛坯尺寸為15mm                                           
                                                                           
     ●熱處理規范及金相組織:                                                
     熱處理規范: 淬火:第一次950℃,第二次850℃,空冷;回火200℃,水冷、空冷。   
                                                                           
     ●交貨狀態:                                                            
     以熱處理（正火、退火或高溫回火）或不熱處理狀態交貨，交貨狀態應在合同中注
 明。          
     18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥18Cr2Ni4WA價格￥