904L Super Austenitic Stainless Steel Profiles (standard ASTM A240, 00Cr20Ni25Mo4.5Cu) contain high Ni and Mo (Ni 24–26%, Mo 4–5%).
| 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 Properties: Density 8.0 g/cm³, melting point 1350–1400 °C, thermal conductivity 12.9 W/(m·K) (20 °C).
Mechanical Properties (Annealed): Tensile strength ≥490 MPa, elongation ≥35%, hardness ≤220 HB.
Chemical Properties: Excellent corrosion resistance in formic and acetic acids; not resistant to hydrofluoric acid.
Profile Types: Custom per drawing (e.g., L, U, Z shapes), minimum thickness ≥2 mm, maximum dimension ≤500 mm.
Length: Custom 1–6 m, tolerance ±5 mm, minimum order 200 kg (requires mold).
Surface: Cold-rolled annealed, electrolytic polished (Ra ≤0.8 μm), passivated.
Stainless Steel Profiles on Storage Racks
Spectrometer for Alloy Composition Analysis
Profile Weighing with Crane Scale
Factory Stacking of Stainless Steel Profiles
Packaged Stainless Steel Profiles for Shipment
Worker Loading Profiles onto Truck
Support for a sulfuric acid concentration unit (custom U-channel, resistant to 98% sulfuric acid vapor).
Support for high-concentration seawater heat exchangers (special cross-section, resistant to Cl⁻ 10000 ppm).
Walmay will help match the right stainless product form and specification for your application, confirm quantities and packing needs, and provide requested documents based on order requirements.
