444 Stainless Steel Plate Manufacturer & Supplier
444 is an 18Cr-2Mo low-interstitial ferritic that matches 316L for chloride pitting resistance while being immune to chloride stress corrosion cracking — the reason it is chosen for hot water and brine duty where 316L cracks.
UNS: S44400 | Category: Ferritic Stainless Steel
Size Range
Outer Diameter: Thickness 1.5 - 8 mm · Width 1000-3000 mm · Length 2000-12000 mm
Wall Thickness: 1.5 - 8 mm
Chemical Composition (%)
| C | Si | Mn | P | S | Cr | Mo | N | Ti + Nb |
|---|---|---|---|---|---|---|---|---|
| 0.025 max | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 17.50-19.50 | 1.75-2.50 | 0.035 max | 0.20 + 4 x (C+N) min, 0.80 max |
Mechanical Properties
- Yield Strength Rp0.2
- 275 MPa min
- Tensile Strength Rm
- 415 MPa min
- Elongation A5
- 20% min
- Hardness
- 217 HB max
Applicable Standards
- ASTM A240 / ASME SA240
- ASTM A480
- EN 10088-2
- JIS G4304 / G4305
- EN 10204 3.1 certification
Applications
- Hot water tanks & solar water heaters
- Brine and effluent tanks
- Food process equipment
- Heat exchanger plates
- Sugar plant equipment
Industries Served
- Water & Desalination
- Food & Beverage
- Sugar & Distillery
- Power & Energy
Equivalent Grades
- EN
- 1.4521 / X2CrMoTi18-2
- JIS
- SUS 444
- UNS
- S44400