904L Stainless Steel Forgings , UNS N08904 Alloy Steel Bars High Wear Resistance
Price:
Price is negotiated based on the required specifications and quantity
MOQ:
100KG
Delivery Time:
5-8 working days, depending on the parameters required for negotiation
Brand:
Zhonggong Special Metallurgy
Product Description
904L Stainless Steel Forgings, UNS N08904 Alloy Steel Bars High Wear Resistance
Product Specifications
| Attribute | Value |
|---|---|
| Density | 8.0g/cm³ |
| Surface | Black or bright |
| Grades | 904L (N08904, 14539) |
| Main Components | 20Cr-24Ni-4.3Mo-1.5Cu |
| Form Of Supply | Bars, plates, pipes, forged parts, etc |
| Formability | Good |
| Ductility | High |
| Corrosion Resistance | Excellent |
| Type | Austenitic Stainless Steel |
Product Overview
904L (N08904, 14539) super austenitic stainless steel contains 14.0-18.0% chromium, 24.0-26.0% nickel, and 4.5% molybdenum. This low-carbon, high nickel, molybdenum austenitic stainless steel features excellent activation passivation transformation ability and superior corrosion resistance.
Chemical Composition
| C | ≤ 0.02% |
| Si | ≤ 1.00% |
| Mn | ≤ 2.00% |
| P | ≤ 0.045% |
| S | ≤ 0.035% |
| Cr | 19.00% -23.00% |
| Ni | 23.00% -28.00% |
| Mo | 4.00% -5.00% |
| Cu | 1.00% -2.00% |
Key Properties
- Excellent corrosion resistance in non-oxidizing acids (sulfuric, acetic, formic, phosphoric)
- Superior pitting corrosion resistance in chloride environments
- Outstanding resistance to crevice corrosion and stress corrosion
- Density: 8.0g/cm³
- Melting point: 1300-1390℃
- Tensile strength: ≥ 520Mpa
- Elongation rate: ≥ 35%
Corrosion Resistance Features
904L's low carbon content (≤0.020%) prevents carbide precipitation during heat treatment and welding, eliminating intergranular corrosion risks. The high chromium-nickel-molybdenum content with copper addition enables passivation even in reducing environments like sulfuric and formic acids.
Performance in Various Media
- Sulfuric acid: Effective up to 40°C in 0-98% concentrations
- Phosphoric acid: Excellent resistance in 0-85% concentrations
- Nitric acid: Lower corrosion resistance than high-alloyed molybdenum-free steels
- Hydrochloric acid: Limited to 1-2% concentrations with better performance than conventional stainless steels
- High resistance to stress corrosion cracking in chloride, hydroxide, and hydrogen sulfide environments
Industrial Applications
- Petroleum and petrochemical equipment (reactors)
- Sulfuric acid storage and transportation (heat exchangers)
- Power plant flue gas desulfurization systems
- Organic acid treatment scrubbers and fans
- Seawater treatment equipment and heat exchangers
- Paper industry equipment
- Pharmaceutical equipment (centrifuges, reactors)
- Food processing equipment (soy sauce, cooking wine containers)
- Chemical processing pressure vessels
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Jiangsu Zhonggongte Metallurgical Technology Co., Ltd.
Location
New South Stainless Steel Trading Market, Fangcheng Avenue, Wuxi City, Jiangsu Province, 12-101.
Contact Person
John zhou