Round steel bar 5140 / 40Cr / SCR440 / 1.7035

1.  Steel grade: GB 40Cr/AISI 5140/DIN 1.7035/JIS Scr440/ASSAB 2245 

2.  Chemicial composition: C=0.37~0.44, Mn=0.50~0.80, Si=0.17~0.37, Cr=0.80~1.10,

     Ni≤0.030. 

3.  Deliver condition: annealed, hot rolled, black surface; hardness HB≤210.

4.  Specification: diameter 20~800mm, length 2000~10000mm.

5.  Application: used for general machinery parts and shafts. Hardenability of the steel higher than C45, suitable for high-frequency hardening, flame hardening, such as surface hardening treatment.

6.  UT passed, good surface, stable property.