1.4404 Stainless Steel Plate & Coil: Austenitic Ultra-Low Carbon Corrosion-Resistant Welding Plate/Coil

What is 1.4404 Stainless Steel Plate & Coil?

W.Nr. 1.4404 is the ultra-low carbon version of 1.4401 (corresponding to SUS316L), combining molybdenum's chloride corrosion resistance and ultra-low carbon's anti-intergranular corrosion performance, designed for welding-intensive plates/coils in harsh corrosive environments.

Equivalent Grades (Horizontal)

W.Nr.: 1.4404 | UNS: S31603 | JIS: SUS316L | GB: 022Cr17Ni12Mo2 | EN: X2CrNiMo17-12-2

Chemical Composition (wt%, Horizontal)

C: ≤0.03 | Si: ≤1.00 | Mn: ≤2.00 | P: ≤0.045 | S: ≤0.030 | Cr: 16.00-18.00 | Ni: 10.00-14.00 | Mo: 2.00-3.00 | Fe: Balance

Key Properties (20°C, Annealed, Horizontal)

Density: 7.98g/cm³ | Melting Point: 1375-1450°C | Tensile Strength: 485-650N/mm² | Yield Strength: ≥170N/mm² | Elongation: ≥40% | Hardness: ≤217HB

Core Characteristics

• Post-weld corrosion prevention: Ultra-low carbon content eliminates intergranular corrosion, no need for post-weld annealing, reducing processing costs • Superior chloride resistance: Suitable for long-term service in seawater, brine and weak acid media, better than 1.4401 in harsh corrosive environments • Excellent low-temperature toughness: Stable performance at -196°C, adapting to low-temperature corrosive plate/coil applications such as cryogenic storage equipment • Welding-intensive structure friendly: Ideal for chemical pipeline plates, marine equipment components, heat exchangers and offshore engineering parts

1.4404 vs 1.4306 Stainless Steel Plate & Coil (Horizontal)

Alloy Element: 1.4404 (Mo: 2.00-3.00%) | 1.4306 (No Mo) | Chloride Resistance: 1.4404 (Excellent) | 1.4306 (General) | Corrosion Adaptability: 1.4404 (Harsh) | 1.4306 (Medium) | Cost: 1.4404 (Medium-High) | 1.4306 (Medium)

 

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.