Forged steel round bar S20C
Specification:S20C
Similar grade:SAE1020,C20
Size:300mm-1200mm
Delivery condition; Forged+Normalizing+Rough Turned
Reference standards:JIS G4052,ASTM E45, EN10228-3:1998(Sep1921-84),ASTM E 112,EN10204
Melting process; EAF+LF+VD+Ingot casting(bottom poured)
Chemical compostion;
C:0.17-0.23; Mn:0.40-0.60;Si:0.15-0.35;Cr: ≤0.30;Mo: ≤0.10;
Ni: ≤0.30;S/P<=0.030;
Forging reduction ratio;≥3.0:1,aim for 4:1
grain size;better than 5 As per ASTM E112-96.
Ultra-sonic test;SEP 1921 Group 3 Class C/c or D/d,or E/e;
Length range;4 meter and up or fix length;
Dia. tolerance ;-0/+3mm.straightness: max. 2mm/m.
Length:3m and up or fix length; normal customer need 3.5-5.8M
Diameter tolerance:-0/+8 mm(Black surface),-0/+3 mm(Rough Turned); or only Only forged of black surface bars
Delivery condition:Hot Forged+Normalzied/Annealed+Quenched and Tempered(Q/T)+(Rough Turned) ;
Ultrasonic Test:Sep1921 Class C/c,D/d,E/e;
Grain Size:Better than 5 after Normalized;
Other specification will according the customer's requirment;
Other specification:
Carbon Steel:C45, CK35,C60, C22
Alloy Steel: 42CrMo4, 34CrNiMo6,39CrNiMo3,18CrNiMo5,17CrNiMo6,
41Cr4,S355J2G3,ST52-3,16MnCr5,20MnCr5,21CrNiMo2. ST52-3,ASTM A105,42CrMo4,S355J2G3,20NiCrMo2,16MnCr5,20MnCr5,
34CrNiMo6,18CrNiMo7-6,39CrNiMo3, 17CrNiMo6,21CrMoV511,56NiCrMoV7,
S355J2,41Cr4,51CrV4,41CrAlMo7,40NiCrMo7,40NiCrMo3;40CrMoV4-6
Tool Steel: H13,1.2714
Forged steel round bar S20C