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Cold Rolled Bright Surface Corrosion Resistant Stainless Steel Sheet and Coil ASTM A240 AISI 444

Certificación	AISI, ASTM
Cantidad de orden mínima	100 kilogramos
Precio	US $2.55-3.68 / kg

Datos del producto

Número de modelo	444 443 441 436L 409L 410 420	Forma	Departamento
Técnica	laminado en frio	Tratamiento superficial	Brillante
Especificación	12202440, 15003000, 15006000, 20006000 mm	Capacidad de producción	500000 kg
Contenido de carbono	0,025 máximo	Contenido del manganeso	1,00 máximo
Contenido de silicio	0,60	contenido del cromo	17.50-19.50
Contenido de molibdeno	1,75-2,50	Densidad	7,75 G/cm3
Resistividad eléctrica	57 microohmios-cm	Conductividad térmica	26,8 W/m·K
Módulo de elasticidad	200 x 103MPa
Resaltar	Cold Rolled Stainless Steel Sheet , Bright Surface Stainless Steel Coil , Corrosion Resistant Stainless Steel Strip

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Descripción de producto

ASTM A240 AISI 444 Stainless Steel Sheet, Coil & Strip

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 due to molybdenum alloying.

Product Overview

Grade Specifications

EN 1.4521 / AISI 444 is equivalent to ASTM 444 standard. Stabilized with both titanium and niobium, this grade achieves elongation to fracture values up to 30% (A80) and features improved surface properties.

Key Applications

Heat exchangers, boilers, and water heaters
Stainless steel water tanks
Pipes for tap water and drinking-water environments
Solar water heaters
Food processing equipment
Brewery and wine making equipment
Automotive components

Technical Properties

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

Material Characteristics

Corrosion Resistance

Grade 1.4521 offers molybdenum-alloyed ferritic steel with localized corrosion resistance close to grade 1.4404/AISI 316. Excellent resistance to chloride-induced stress corrosion cracking. Refer to NACE for specific corrosion recommendations.

Formability

Excellent cold-forming capabilities with particular suitability for deep drawing. Comparable deep drawability to deep drawing quality carbon steels. Lower work hardening rate than standard austenitic grades.

Welding

Better weldability than many ferritic steels due to low C and N contents with titanium and niobium stabilization. Grain growth in HAZ limits heat input. Austenitic fillers typically used. Refer to SSINA's "Welding of Stainless Steels" for best practices.

Available Forms & Finishes

Forms

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

Sheet 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 decorative finish
Soap - Lubricated tempered wire

Not all finishes available for all alloys - Contact sales for availability

Product Images

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Cold Rolled Bright Surface Corrosion Resistant Stainless Steel Sheet and Coil ASTM A240 AISI 444

Cold Rolled Stainless Steel Sheet

Bright Surface Stainless Steel Coil

Corrosion Resistant Stainless Steel Strip