90HMF

Steel is prone to temper embrittlement, does not apply to welded structures. Flock sensitivity: sensitive. Temperature of critical points: Ac1 = 700, Mn = 215. Hardness after annealing (GOST 5950): HB 1 0 - 1 = 241 MPa .

supporting rolls of all sizes and trusses supporting rolls of composite sheet rolling mills for hot metal.

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % V, % P, % C, % S, % Mo, %
OST 24.013.04 - 0 95.42–97.1 0.2–0.4 0.2–0.7 1.4–1.7 < 0.3 0.1–0.2 < 0.04 0.8–0.9 < 0.04 0.2–0.3

Information on suppliers

Technological Properties

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

Standards

Standard Description
OST 24.013.04 - 0

Description of chemical elements

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

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