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Temperature of critical points: Ac1 = 745, Ar1 = 700, Mn = 240. Hardness after annealing (OST 5950−2000): HB 1 0 -one = 229 MPa .

for chisels used in the notch of files; very solid eccentric cams and fingers; smooth cylindrical gauge and caliber of the Rings; lathe, planer and slotting cutters in straight-and repair shops

Classification

Country Section Category
CIS, Russia, Ukraine Tool steel Alloy tool steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % Cu, % Ni, % V, % P, % C, % S, % Mo, % W, %
GOST 5950-73 95.06–97.5 0.1–0.4 0.15–0.45 1.3–1.65 < 0.03 < 0.3 < 0.4 < 0.15 < 0.03 0.95–1.1 < 0.03 < 0.2 < 0.2

Information on suppliers

Critical point temperatures

Ac1, K Ar1, K Mn, K
745 700 240

Analogues

USA Germany Japan France United Kingdom European Union Italy Spain China Sweden Bulgaria Hungary Poland Austria
L1 1.2067 (102Cr6) SUJ2 100Cr6 2067 1.2067 102Cr6KU 100Cr6 Cr2 2258 102Cr6 K4 NC4 BOHLERK200

Standards

Standard Description
GOST 5950-73

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ti % Titan
Cu % Copper
Ni % Nickel
V % Vanadium
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum
W % Tungsten

Description of temperatures of critical points

Parameter Units of measurement Description
Ac1 K
Ar1 K
Mn K