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Wear Resistant 440C Stainless Steel Hot Rolled / Cold Drawn Rod
| MOQ: | 100KG |
| Price: | Price is negotiated based on the required specifications and quantity |
| Standard Packaging: | Standard export packaging, or packaging as required |
| Delivery Period: | 5-8 working days, depending on the parameters required for negotiation |
| Payment Method: | Payment Terms: Mainly T/T.. L/C, D/A, D/P, |
| Supply Capacity: | 5000 tons per month |
440C Stainless Steel Hot Rolled
,Wear Resistant 440C Stainless Steel
,Cold Drawn Stainless Steel 440C
| Attribute | Value |
|---|---|
| Type | Martensitic stainless steel |
| Product Form | Stainless steel bars, plates, etc. |
| Applications | Cutlery, Surgical Instruments, Bearings, Valve Parts |
| Features | The highest hardness among heat-resistant steels |
| Main Application | Bearing parts working in corrosive environment and non-lubricated strong oxidizing atmosphere |
| Wear Resistance | High |
| Corrosion Resistance | High |
| Density | 7.78 g/cm³ |
| Cr | C | Si | Mn | S | P |
| 16.00~18.00% | 0.95~1.20% | ≤1.00% | ≤1.00% | ≤0.030% | ≤0.035% |
| Ni | ≤0.60% | ||||
The chemical composition of 440C includes carbon (C), chromium (Cr), nickel (Ni), and other elements. The high carbon content provides exceptional hardness and wear resistance, while chromium content between 17%-19% delivers excellent corrosion resistance.
440C stainless steel has a density of approximately 7.78 g/cm³, with a melting point between 1398-1454℃. Its low thermal conductivity ensures stability in high temperature environments.
The heat treatment process involves quenching and tempering:
- Quenching: Heating above critical temperature followed by rapid cooling to obtain martensite structure
- Tempering: Heating below critical temperature after quenching to eliminate stress and improve toughness
After proper heat treatment, 440C achieves:
- Tensile strength: ≥880 MPa
- Yield strength: ≈780 MPa
- Good plasticity and toughness despite relatively low elongation
The high chromium content forms a protective oxide film that prevents corrosion. 440C performs well in atmospheric conditions and resists acids, alkalis, and other corrosive media.
- Medical Equipment: Scalpels, scissors, needles
- Kitchenware: High-end knives and cookware
- Industrial Components: Valves, pumps, bearings, gears
- Aerospace: High-temperature parts including turbine blades
Available either heat-treated or untreated according to customer requirements.
