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Products > Steel >Alloy Steel > 40CrNiMoA Round Bar

40CrNiMoA Round Bar

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40CrNiMoA Round Bar

GB/T3077-1999 
Chemical   composition：
 C ：0.37～0.4  
 Si：0.17～0.37  
 Mn：0.50～0.80 
 S ：≤0.025  
 P ：≤0.025   
 Cr：0.60～0.90  
 Ni：1.25～1.65  
 Cu：≤0.025   
 Mo：0.15～0.25  


mechanical properties：
 T.Sσb (MPa)：≥980(100)   
 Y.S σs (MPa)：≥835(85)  
 EL δ5 (%)：≥12   
 ψ (%)：≥55