9H1

For cold rolling rolls, stamps, punches, dies, punches, dererabat. tool.

working and supporting rolls for cold rolling of metals. Rail and structural steel work rolls, Large-size and wire crimping and rolling mills for hot rolling metal, exposed to intensive wear and work in conditions of minimal or mild shock. Supporting rollers composite sheet mills for hot rolling metal. Hallmarks, punches, Cold-punches, woodworking tools and other items.

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 5950-2000 95.16–97.4 0.25–0.45 0.15–0.4 1.4–1.7 < 0.03 < 0.3 < 0.4 < 0.15 < 0.03 0.8–0.95 < 0.03 < 0.2 < 0.2

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{P}, MPa \epsilon_L, % \psi, % KCU\cdot 10^{3}, \frac{J}{m^2} Treatment
Alloy 880 830 12 37 700 Accommodation Tempering 500 ° C

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy GOST 5950-73 annealing 229

Technological Properties

Weldability Flake Susceptibility Propensity to temper brittleness
Not applicable for welded structures sensitive loathsome

Critical point temperatures

Ac1, K Ac3(Acm), K Ar1, K Mn, K
745 860 700 270

Analogues

Germany China Czech Republic Austria
1.2064 (85Cr7) 9CV2 19426 K201
85Cr7
102Cr6

Standards

Standard Description
GOST 5950-2000 GOST

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 mechanical properties

Parameter Units of measurement Description
\sigma _{U} MPa Ultimate tensile strength
\sigma_{P} MPa Proportionality limit
\epsilon_L % Elongation at break (longitudinal)
\psi % Reduction in cross section on fracture
KCU\cdot 10^{3} \frac{J}{m^2} Impact toughness

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures

Description of temperatures of critical points

Parameter Units of measurement Description
Ac1 K
Ac3(Acm) K
Ar1 K
Mn K