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



TOOL CARBON STEEL

Grade correspondents
EN ISO
4957
 WERKSTOFF
Number		 STAS
1700
 AFNOR
35-590
EN 96		 DIN
17350		 JIS
64401		 GOST
1435		 ASTM
AISI
C45U 1.1730 - Y342;Y348 C45w - - -
- 1.1740 - Y355;Y365 C60w - - -
C70U 1.1620 OSC7 CT70 C70W2 SK7 U7 -
C80U 1.1525 OSC8 CT80
Y180		 C80W1 SK6 U8 W108
- 1.1830 OSC8M - C85W - U8G -
C90U 1.1535 OSC9 - - SK5 U9A W109
- 1.1645 OSC10 - - SK4 U10A W110
C105U 1.1545 OSC11 CT105
Y1105		 C 105 W1 SK3 U11A W112
C120U 1.1555 OSC12 - - SK2 U12A -
Chemical composition
STEEL CHEMICAL COMPOSITION, % BY WEIGHT
GRADE
 C Si Mn P max Smax
C45U 0.42-0.50 0.15-0.40 0.60-0.80 0.030 0.030
C60W 0.55-0.65 0.15-0.40 0.60-0.80 0.035 0.035
C70U 0.65-0.75 0.10-0.30 0.10-0.40 0.030 0.030
C80U 0.75-0.85 0.10-0.30 0.10-0.40 0.030 0.030
C85W 0.80-0.90 0.25-0.40 0.50-0.70 0.025 0.020
C90U 0.85-0.95 0.10-0.030 0.10-0.40 0.030 0.030
OSC10 0.95-1.04 0.15-0.35 0.10-0.35 0.030 0.025
C105U 1.00-1.10 0.10-0.30 0.10-0.40 0.030 0.030
C120U 1.15-1.25 0.10-0.30 0.10-0.40 0.030 0.030