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904l Super Austenitic Stainless Steel Forgings Corrosion Resistance
| 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 |
Detail Information
Place of Origin
China
Brand Name
Zhonggong Special Metallurgy
Certification
ISO Certificate
Model Number
904L stainless steel forgings
Density:
8.0 G/cm³
Size:
According To The Drawing
Corrosion Resistance:
Excellent
Tensile Strength::
σb≥520MPa
Download:
δ≥35%
Alloy:
Super Austenitic Stainless Steel
Steel:
Low Carbon High Nickel, Molybdenum Austenitic Stainless Acid Resistant Steel
Main Ingredients:
20Cr-24Ni-4.3Mo-1.5Cu
Highlight:
904l Super Austenitic Stainless Steel Forgings
,Super Austenitic Stainless Steel Forgings
,Corrosion Resistance Stainless Steel Forgings
Product Description
904L Super Austenitic Stainless Steel Forgings with Superior Corrosion Resistance
Product Specifications
| Attribute | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Size | Custom according to technical drawings |
| Corrosion Resistance | Excellent |
| Tensile Strength | σb≥520MPa |
| Elongation | δ≥35% |
| Alloy Type | Super austenitic stainless steel |
| Steel Composition | Low carbon high nickel, molybdenum austenitic stainless acid resistant steel |
| Main Components | 20Cr-24Ni-4.3Mo-1.5Cu |
Material Characteristics
904L (N08904, 1.4539) 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 acid-resistant steel offers exceptional performance in corrosive environments.
Key Features:
- Excellent activation-passivation transformation capability
- Superior resistance to non-oxidizing acids (sulfuric, acetic, formic, phosphoric)
- Outstanding pitting resistance in chloride environments
- Excellent crevice corrosion and stress corrosion resistance
- Effective in sulfuric acid up to 70°C at all concentrations
- Maintains corrosion resistance in acetic acid at any concentration and temperature
Metallurgical Properties
904L stainless steel features a completely austenitic structure with low sensitivity to ferrite and α phase precipitation. The ultra-low carbon content (max 0.020%) eliminates carbide precipitation during heat treatment and welding, preventing intergranular corrosion.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Cr | 19 | 23 |
| Ni | 23 | 28 |
| Mo | 4 | 5 |
| Cu | 1 | 2 |
| C | - | 0.02 |
Mechanical Properties
| Density | 8.0 g/cm3 |
| Melting Point | 1300-1390 ℃ |
| Tensile Strength (Rm) | ≥490 N/mm² |
| Yield Strength (RP0.2) | ≥216 N/mm² |
| Elongation (A5) | ≥35% |
Industrial Applications
- Petroleum and petrochemical equipment (reactors, storage tanks)
- Sulfuric acid storage and transportation systems (heat exchangers)
- Power plant flue gas desulfurization equipment
- Organic acid treatment systems (scrubbers, fans)
- Seawater treatment equipment and heat exchangers
- Pharmaceutical industry equipment (centrifuges, reactors)
- Food processing equipment (soy sauce tanks, cooking systems)
- Chemical processing equipment for acid production
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