Steel bars:

Carbon steel for general use
Heat treatable quality carbon steel
Tool carbon steel
Case hardening steel
Heat treatable steel
Spring steel
Alloy tool steel for cold work
Alloy tool steel for hot work
High speed tool steel
Stainless and refractory stainless steel

  Hot rolled flat steel bars



SPRING STEEL

Grade correspondents
DIN 17221 Werkstoff No. STAS 795 AFNOR 35-571
EURONORM
EN 89		 B.S. 970 UNI 7064 JIS G 4801 GOST 14959 AISI/SAE
ASTM
60 SiCr 7 1.7108 60Si15A 61SC7
60SiCr8		 - 60SiCr8 - - 9262
55 Cr 3 1.7176 - 55C3
55Cr3		 525A58
525A60
525H60		 55Cr3 SUP9
SUP9A		 50ChGA 5155
5160
50 CrV 4 1.8159 51VCr11A 50Cv4
51CrV4		 735A51
735H51		 50CrV4 SUP10 50HGFA 50HFA 6145
6150
51CrMo V 4 1.7701 - 51CrMoV4
51CDV4		 - - - - -
Chemical composition
STEEL CHEMICAL COMPOSITION, % BY WEIGHT
GRADE C Si Mn Pmax Smax Cr Mo V
60 SiCr 7 0,57-0,65 1,50-1,80 0,70-1,00 0.030 0,030 0,20-0,40 - -
55 Cr 3 0,52-0,59 0,25-0,50 0,70-1,10 0,030 0,030 0,70-1,00 - -
50 CrV 4 0,47-0,55 0,15-0,40 0,70-1,10 0.030 0,030 0,90-1,20 - 0,10-0,20
51 CrMoV 4 0,48-0,56 0,15-0,40 0,70-1,10 0.030 0,030 0,90-1,20 0,15-0,25 0,08-0,15