Durapur 1219 QT Bearing Steel – High Performance for Low-Burden Rolling Applications
1.1219 (C56E2) is an unalloyed Bearing steel which used for components in the rolling bearing industry that are relatively low burdened, such as flanges.
Properties
General
| Property | Value |
|---|---|
Density | 7.7 g/cm³ |
Dimension
| Property | Value | Comment |
|---|---|---|
Diameter | 100 mm | max. |
Mechanical
| Property | Value | Comment |
|---|---|---|
Elastic modulus | 210 GPa | |
Elongation | 12 - 15 % | |
Hardness, Brinell | 229 [-] | annealed |
Reduction of area | 30 - 40 % | |
Tensile strength | 650 - 900 MPa | |
Yield strength | 400 - 520 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100 °C | 1.15e-05 1/K | for 20°C to the mentioned temperature |
200 °C | 1.25e-05 1/K | for 20°C to the mentioned temperature | |
300 °C | 1.33e-05 1/K | for 20°C to the mentioned temperature | |
400 °C | 1.39e-05 1/K | for 20°C to the mentioned temperature | |
Specific heat capacity | 470 J/(kg·K) | ||
Thermal conductivity | 42.6 W/(m·K) |
Electrical
| Property | Value |
|---|---|
Electrical resistivity | 1.9e-07 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.52 - 0.6 % |
Iron | Balance |
Manganese | 0.6 - 0.9 % |
Phosphorus | 0.025 % |
Silicon | 0.4 % |
Sulfur | 0.015 % |
Technological properties
| Property | ||
|---|---|---|
| Application areas | It is used for components in the rolling bearing industry that are relatively low burdened, such as flanges. | |
| Heat Treatment | Normalizing 830-860°C (Air), Soft annealing: 650-700°C (Oven, slow cooling), Quenching: 805-845°C (Water, Oil, Polymer), Tempering: 550-660°C (Water, Oil, Polymer) | |
| Hot forming | It is formable at 850-1100°C and should be then slowly cooled. | |
| Processing history | Quenched and Tempered | |
| Welding | It is not weldable. | |
Metal
- AgCu20 Alloy: Comprehensive Mechanical & Thermal Properties at 23°C
- PtNi10 Alloy: Comprehensive Mechanical & Thermal Properties
- PtIr10 Platinum-Iridium Alloy: High-Strength, High-Temperature Material
- Corroplast Plate – High-Performance, Corrosion-Resistant Steel for Precision Machining
- Nitrodur 8524 QT - High-Performance Quenched & Tempered Steel for Hydraulic Applications
- Durapur 3520: Premium 100CrMnSi6-4 Steel for High-Performance Rolling Bearings
- Durapur 3505 Bearing Steel – High Performance, Wear-Resistant Material for Automotive & Industrial Applications
- Premium Molybdenum Plate – Heat‑Resistant & Durable
- Firmodur 1249 QT Steel – High-Performance Quenched & Tempered Grade for Automotive & Industrial Applications
- Nitrodur 8523 QT: High-Performance Nitriding Steel for Automotive & Mechanical Applications