UNS S44401 Stainless Steel
Ferritic Stainless Steels
Property Overview
Density7.8g/cm³
Elastic Modulus200GPa
Tensile Strength480MPa
Yield Strength300MPa
Brinell HardnessUnknown
Maximum Service Temperature930°C
Chemical Composition
C
0 to 0.025%
CR
17.5 to 19.5%
NI
0 to 1.0%
MO
1.8 to 2.5%
MN
0 to 1.0%
N
0 to 0.035%
P
0 to 0.040%
S
0 to 0.030%
TI
0.2 to 0.8%
FE
75.1 to 80.6%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
21 %
Fatigue Strength
200 MPa
Poisson's Ratio
0.28
Shear Modulus
78 GPa
Shear Strength
300 MPa
Tensile Strength: Ultimate (UTS)
480 MPa
Tensile Strength: Yield (Proof)
300 MPa
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
510 °C
Maximum Temperature: Mechanical
930 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
22 W/m-K
Thermal Diffusivity
5.9 mm 2 /s
Thermal Expansion
10 µm/m-K
Thermal Shock Resistance
17 points
Electrical
Electrical Conductivity: Equal Volume
2.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.6 % IACS
Calculated
PREN (Pitting Resistance)
26
Resilience: Ultimate (Unit Rupture Work)
90 MJ/m 3
Resilience: Unit (Modulus of Resilience)
230 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
17 points
Strength to Weight: Bending
18 points
Environmental
Base Metal Price
12 % relative
Embodied Carbon
2.9 kg CO 2 /kg material
Embodied Energy
40 MJ/kg
Embodied Energy
40 MJ/kg 17 x 10 3 BTU/lb
Embodied Water
130 L/kg
Embodied Water
130 L/kg 16 gal/lb
Registered Designations & Aliases
S44401UNS S44401 Stainless Steel
Standards
ASTM A493 ASTM A493: Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging