904L Super Stainless Coil

904L Super Coil, suitable for desalination equipment

904L Super Stainless Steel Coil (00Cr20Ni25Mo4.5Cu), compliant with ASTM A240, is a high-nickel, molybdenum austenitic stainless steel.

  • Strong Acid Resistance

    Corrosion rate ≤0.1 mm/year in 50% H₂SO₄ at 80 °C

  • High-Temperature Strength Stability

    Tensile strength ≥490 MPa at 200 °C

  • Stress Corrosion Resistance

    No risk of stress corrosion cracking in chloride environments

Product Specifications

Chemical Composition (GB/T 1220-2007)
Element C ≤ Si ≤ Mn ≤ P ≤ S ≤ Cr Ni Mo Cu
Content % 0.02 1 2 0.035 0.03 19.0–21.0 24.0–26.0 4.0–5.0 1.0–2.0
Physical & Mechanical Properties
  • Density: 8.0 g/cm³

  • Melting Point: 1350–1400 °C

  • Thermal Conductivity: 12.9 W/(m·K)

  • Mechanical Properties: Tensile strength ≥490 MPa, elongation ≥35%

Specifications & Supply Dimensions
  • Thickness: 0.5–6.0 mm (tolerance ±0.07 mm)

  • Width: 1000 / 1219 mm

  • Surface: 2B (cold-rolled annealed), customizable electro-polished

  • Coil Weight: 3–8 t/coil, made-to-order

Pricing Calculation

Workshop & Manufacturing Machine

Coil Feeding into Processing Machine

Parallel Coil Processing Lines

Coil Thickness Measurement

Single Coil Packaging

Factory Coil Storage

Truck Loading of Coils

Product Applications

  • Chemical Equipment

    Sulfuric acid reactor lining (2.0 mm × 1000 mm coil)

  • Seawater Treatment

    Concentrated seawater heat exchangers (1.5 mm × 1219 mm coil)

Additional Information

Welding

Use ERNiCrMo-3 welding wire; post-weld solution treatment required

Delivery

Custom lead time 15–20 days, corrosion test report provided

FAQ

What makes 904L a "super" stainless steel?

High nickel, chromium, and molybdenum content provide outstanding resistance to strong acids and chlorides.

What industries use 904L stainless steel coils?

Chemical processing, offshore engineering, desalination, and pharmaceutical industries.

How does 904L compare to duplex stainless steel coils?

904L excels in corrosion resistance, while duplex grades offer higher mechanical strength.

Is 904L stainless steel coil weldable?

Yes. Proper welding techniques maintain corrosion resistance.

Do you support project-based supply for 904L coils?

Yes. Customized sizes, testing, and documentation are available for project orders.

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