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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
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
