444 Stainless Steel Coil | Mo‑Alloyed Ferritic Stainless Steel | High Corrosion & Heat Resistance

🟧 Product Overview

444 stainless steel is a superior ferritic stainless steel containing molybdenum (Mo) and stabilizing elements (Nb/Ti). It offers:

• Excellent resistance to chloride‑induced corrosion
• Strong pitting and crevice corrosion resistance
• High heat resistance
• Good weldability and formability
• Stable performance in hot‑water and heat‑exchange environments

Because of its enhanced corrosion resistance, 444 is widely used as a high‑end alternative to 316L in certain applications, especially where chloride exposure is significant.

🟧 Key Features

• Superior resistance to pitting and crevice corrosion
• Excellent performance in chloride‑rich environments
• High heat resistance and oxidation resistance
• Stabilized with Nb/Ti for improved weldability
• Low nickel content for cost stability
• Ideal for long‑term hot‑water and heat‑exchange systems

🟧 Standards

• ASTM A240 / A480
• JIS G4304 / G4305 (SUS444)
• EN 10088‑2 (1.4521)
• GB/T 3280

🟧 Chemical Composition (Typical)

Element	444 (%)
C	≤0.025
Cr	17.5–19.5
Ni	≤1.0
Mo	1.75–2.50
Mn	≤1.0
Si	≤1.0
Nb / Ti	Stabilized
Fe	Balance

Note: The molybdenum content is the key factor behind 444’s superior resistance to chloride corrosion and pitting.

🟧 Mechanical Properties (Typical)

Property	Value
Yield Strength	≥240 MPa
Tensile Strength	≥480 MPa
Elongation	≥20%

🟧 Product Specifications

Thickness

• 0.25 – 6.0 mm

Width

• 600 – 2000 mm

Surface Finishes

• 2B
• BA
• No.1
• No.4
• HL
• Mirror 8K

🟧 Applications

High‑Corrosion‑Resistance Applications

• Heat exchangers
• Hot‑water tanks
• Solar water heaters
• Desalination equipment

Industrial Chloride Environments

• Chemical processing
• Cooling‑water systems
• Industrial heat‑exchange systems

Heat‑Resistant Applications

• Furnace components
• Thermal processing equipment

🟧 Why Choose Jaron Steel

• Professional supply of 444 stainless steel coil
• High‑end Mo‑alloyed ferritic grade
• Superior corrosion and heat resistance
• SGS / BV inspection available
• Export‑grade seaworthy packaging