Material
Stainless Steel 444 (Ferritic)
Stainless Steel 444 is a molybdenum-added ferritic alloy with corrosion resistance approaching 316L, and it's essentially immune to chloride stress corrosion cracking.
Procesos de fabricación
Detalles del material
444 is a low-carbon, dual-stabilized (titanium/niobium) ferritic stainless steel with 18% chromium and 2% molybdenum. Its pitting and crevice corrosion resistance rivals 316L in many environments, and being ferritic, it's not susceptible to chloride stress corrosion cracking – a common failure mode for austenitic grades in hot water systems.
It has limited weldability for dynamic or impact-loaded structures and can become brittle after prolonged exposure in the 400-500 °C range.
Stainless Steel 444 is suitable for hot water tanks, heat exchanger tubing, desalination equipment, and food/beverage processing gear.
Detalles técnicos
- Precisión
- ±0.2% (límite inferior de ±0.13 mm)
- Densidad
- 7.6 g/cm³
- Espesor de pared mín.
- -
Propiedades técnicas
- Resistencia a la tracción
- 415 MPa
- Alargamiento a la tracción
- 20%
- Gofrado
- mín. 0.3 mm
- Grabado
- mín. 0.3 mm
- Riesgo de deformación
- N/A