Carbon Round Bar S20c S45c

We are offering carbon round bar s20c s45c.
Demension(mm): φ16~φ260
table 1 typical contrast of steel grade:
jis aisi/astm din
s20c 1020 c22
s45c 1045 c45
swrh42b 1039 40mn4
swrh62b 1062 60mn3
table 2 grade and chemical composition
chemical composition (mass fraction), %
grade c mn si s p
s20c-b 0.17-0.23 0.35-0.65 0.17-0.37 ≤0.025 ≤0.030 b 0.0008~0.0040
s45c-b 0.42~0.50 0.50~0.80 0.17~0.37 ≤0.025 ≤0.030 0.0008~0.0040
packing, marking and mill test certificates of the round bar are according to customers requirements.