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Corrosion Resistant AISI 444 Stainless Steel Sheet with Bright Surface and Cold Rolled Technique

Certification	AISI, ASTM
Minimum Order Quantity	100 kg
Price	US $2.55-3.5 / kg

Product Details

Model Number	444	Shape	Flat
Technique	Cold Rolled	Surface Treatment	Bright
Specification	12202440, 15003000, 15006000, 20006000mm	Carbon Content	0.025 Max
Manganese Content	1.00 Max	Silicon Content	0.60
Chromium Content	17.50-19.50	Nickel Content	01.00 Max
Molybdenum Content	1.75-2.50	Phosphorus Content	0.040 Max
Sulfur Content	0.030 Max	Density	7.75 G/cm3
Melting Range	2700 - 2790 °F (1482 - 1532 °C)
Highlight	Corrosion Resistant Stainless Steel Sheet , Cold Rolled AISI 444 Sheet , Bright Surface 1.4521 Stainless Steel

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Product Description

444 Stainless Steel Alloy 444 Stainless Steel Sheet

SUS444 stainless steel sheet, also known as AISI 444 or EN 1.4521, is a dual-stabilized ferritic stainless steel containing 2% molybdenum. This grade offers excellent corrosion resistance comparable to austenitic grades 4401/4404, with higher strength values and improved surface properties.

Grade Specifications

EN 1.4521 / AISI 444 is equivalent to European code 1.4521 and American standard marking ASTM 444. The molybdenum alloying and 18% chromium content provide exceptional corrosion properties, while dual stabilization with titanium and niobium ensures a fully stabilized microstructure with elongation to fracture values up to 30%.

Applications

Food processing equipment
Brewery and wine making equipment
Hot-water tanks and heat exchangers
Heat-exchanger tubing
Automotive components
Solar water heaters
Drinking water applications (approved by German DVGW and Swiss SVGW authorities)

Corrosion Resistance

Grade 1.4521 offers molybdenum-alloyed ferritic steel with localized corrosion resistance close to grade 1.4404/AISI 316 austenitic stainless steel. The nickel-free ferritic structure provides excellent resistance to chloride-induced stress corrosion cracking.

Formability

1.4521 can be readily cold-formed by all standard processes and is particularly suitable for deep drawing, with deep drawability comparable to deep drawing quality carbon steels. The lower work hardening rate makes it easily cold formed and machined.

Welding

With low C and N contents and titanium/niobium stabilization, this ferritic steel offers better weldability than many ferritic steels. Heat input must be minimized to prevent grain growth in the HAZ, with austenitic fillers typically used.

Chemical Composition (Typical)

Element	Content (%)
Carbon	0.025 max
Manganese	1.00 max
Silicon	0.60
Chromium	17.50-19.50
Nickel	1.00 max
Molybdenum	1.75-2.50
Titanium + Columbium	0.20 + 4x (C+N) min - 0.80 max
Phosphorus	0.040 max
Sulfur	0.030 max
Iron	Balance

Physical Properties

Property	Value
Density	0.28 lbs/in³ (7.75 g/cm³)
Electrical Resistivity	22.50 μΩ·in (57 μΩ·cm) at 68°F (20°C)
Specific Heat	0.102 BTU/lb·°F (0.427 kJ/kg·K)
Thermal Conductivity	15.5 BTU/hr/ft²/ft/°F (26.8 W/m·K)
Thermal Expansion	6.1 × 10⁻⁶ in/in/°F (11.0 μm/m·K)
Modulus of Elasticity	29 × 10³ ksi (200 × 10³ MPa)
Magnetic Permeability	Magnetic
Melting Range	2700 - 2790°F (1482 - 1532°C)

Mechanical Properties (Annealed)

Property	Value
Ultimate Tensile Strength	60 KSI min (414 MPa min)
Yield Strength (0.2% offset)	40 KSI min (276 MPa min)
Elongation	22% min
Hardness	Rb 90 max

Available Forms

Coil - Strip, Foil, Ribbon; Wire - Profile, Round, Flat, Square

Finishes

#1 - Hot rolled annealed and descaled
#2D - Dull finish for deep drawn parts
#2B - Smooth finish with brighter appearance
#BA - Bright annealed cold rolled
#CBA - Course bright annealed matte finish
#2 - Cold Rolled
#2BA - Smooth glossy finish
Polished - Various grit finishes

Wire Finishes

XC - Extra clean bright annealed
Grease - Ultra-bright finish for decorative applications
Soap - Soap lubricant retained on tempered wire

Processing Characteristics

Cold Forming: Excellent formability for deep drawing and spin forming; limited stretch forming capability.

Heat Treatment: Non-heat treatable.

Welding: Refer to SSINA's "Welding of Stainless Steels and Other Joining Methods" for best results.

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Corrosion Resistant AISI 444 Stainless Steel Sheet with Bright Surface and Cold Rolled Technique

Corrosion Resistant Stainless Steel Sheet

Cold Rolled AISI 444 Sheet

Bright Surface 1.4521 Stainless Steel