Steel 90KhMF
Steel 90KhMF
Steel 90KhMF: Handbook of steels and alloys. Below is systematized information on the purpose, chemical composition, types of supply, substitutes, critical point temperatures, physical, mechanical, technological and foundry properties for the brand — Steel 90KhMF.
General information on 90KhMF steel
| Delivery type |
| rolls OST 24.013.04−83. |
| Application |
| Support rolls of all sizes and tires of composite support rolls of sheet metal hot rolling mills. |
Chemical composition of 90KhMF steel
| Chemical element |
% |
| Vanadium (V) |
0.10−0.20 |
| Silicon (Si) |
0.20−0.40 |
| Manganese (Mn) |
0.20−0.70 |
| Molybdenum (Mo) |
0.20−0.30 |
| Nickel (Ni), max. |
0.30 |
| Sulfur (S), not more than |
0.040 |
| Carbon (C) |
0.80−0.90 |
| Phosphorus (P), not more than |
0.040 |
| Chromium (Cr) |
1.40−1.70 |
Mechanical properties of 90XMF steel
Mechanical properties
| Heat treatment, delivery condition |
Section, mm |
HRCe |
| Barrels of bearing rolls of sheet rolling mills for hot rolling. Normalization. Tempering. |
<1600 |
HSD 35−60 |
| Barrels of bearing rolls of hot rolling mills. Hardening. Tempering. |
<1600 |
HSD 45−75 |
| Support roll necks of hot rolling mills. Normalization. Tempering. |
<1600 |
HSD 30−60 |
| Barrels of bearing composite rolls of hot rolling mills. Normalization. Tempering. |
<1600 |
HSD 60−85 |
Mechanical properties at elevated temperatures
| t test,°C |
σ0, 2, MPa |
σB, MPa |
δ5, % |
ψ, % |
| Specimen 6 mm in diameter and 30 mm in length cut from the forging of a roll in the tangential direction. Deformation rate is 16 mm/minute. Strain rate 0,009 1/s. |
| 800 |
125 |
160 |
35 |
92 |
| 900 |
92 |
110 |
51 |
98 |
| 1000 |
49 |
64 |
71 |
100 |
| 1100 |
26 |
37 |
82 |
100 |
| 1180 |
20 |
27 |
83 |
100 |
Technological properties of 90KhMF steel
| Forging temperature |
| Beginning 1180, end 800. |
| Weldability |
| Not applicable for welded structures. |
| Workability by cutting |
| In annealed condition at HB 170−207 and σB = 610 MPa Kυ of arc steel. = 0.85, Kυ b.st. = 0.80. |
| Tendency to tempering capacity |
| is not inclined |
| Flocke sensitivity |
| susceptible |
The hardness of steel 90KhMF
| Delivery condition, heat treatment regime |
HSD |
| Barrels of bearing rolls of hot sheet rolling mills. Section up to 1600 mm. Normalization. Tempering. |
35−60 |
| Barrels of bearing rolls of hot rolling mills. Section up to 1600 mm. Hardening. Tempering. |
45−75 |
| Necks of bearing rolls of hot rolling mills. Section up to 1600 mm. Normalization. Tempering. |
30−60 |
| Barrels of supporting compound rolls of sheet mills for hot rolling. Section up to 1600 mm. Normalization. Tempering. |
60−85 |
