Cold Rolled 439 Stainless Steel Sheet with Bright Surface and Corrosion Resistance for Automotive Exhaust Systems
Price:
US $1.55-2 / kg
MOQ:
100 kg
Delivery Time:
Negotiable
Product Description
439 Stainless Steel Properties & Sheet
439 stainless steel features a carefully balanced composition that provides a completely ferritic structure at all temperatures. This unique formulation prevents ductility loss after welding and offers exceptional resistance to intergranular corrosion.
Superior Performance Advantages
- Eliminates brittle martensite formation after welding (unlike 430 and 434 alloys)
- No post-welding annealing required to restore ductility or corrosion resistance
- Excellent resistance to stress corrosion cracking
- Superior weldability characteristics
- High thermal conductivity with low thermal expansion
- Low cobalt content ideal for nuclear applications
- Excellent oxidation and corrosion resistance for high-temperature applications
Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Ti |
|---|---|---|---|---|---|---|---|
| 439 | 0.070 | 1.00 | 1.00 | 0.040 | 0.030 | 17.00~19.00 | ≥ 0.20+4(C+N)min - 0.50 max |
Typical Annealed State Mechanical Properties
| Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|
| 455 | 290 | 34 | 78 |
Available Product Forms
Hot-rolled wide strip, cold-rolled wide strip, slit strip, cut sheets, precision strip
Stock Availability: 439 hot and cold rolled stainless steel sheet, plate, strip and coil
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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben