UNS S44330 Stainless Steel
Ferritic Stainless Steels
Property Overview
Density7.7g/cm³
Elastic Modulus200GPa
Tensile Strength440MPa
Yield Strength230MPa
Brinell Hardness160HB
Maximum Service Temperature990°C
Chemical Composition
C
0 to 0.025%
CR
20 to 23%
MN
0 to 1.0%
SI
0 to 1.0%
N
0 to 0.025%
P
0 to 0.040%
S
0 to 0.030%
CU
0.3 to 0.8%
NB
0 to 0.8%
TI
0 to 0.8%
FE
72.5 to 79.7%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
25 %
Fatigue Strength
160 MPa
Poisson's Ratio
0.27
Shear Modulus
78 GPa
Shear Strength
280 MPa
Tensile Strength: Ultimate (UTS)
440 MPa
Tensile Strength: Yield (Proof)
230 MPa
Hardness
Brinell Hardness
160
Rockwell B Hardness
79
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
560 °C
Maximum Temperature: Mechanical
990 °C
Melting Completion (Liquidus)
1440 °C
Melting Onset (Solidus)
1390 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
21 W/m-K
Thermal Diffusivity
5.7 mm 2 /s
Thermal Expansion
10 µm/m-K
Thermal Shock Resistance
16 points
Electrical
Electrical Conductivity: Equal Volume
2.7 % IACS
Electrical Conductivity: Equal Weight (Specific)
3.1 % IACS
Calculated
PREN (Pitting Resistance)
22
Resilience: Ultimate (Unit Rupture Work)
91 MJ/m 3
Resilience: Unit (Modulus of Resilience)
140 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
16 points
Strength to Weight: Bending
17 points
Environmental
Base Metal Price
13 % relative
Embodied Carbon
2.8 kg CO 2 /kg material
Embodied Energy
40 MJ/kg
Embodied Energy
40 MJ/kg 17 x 10 3 BTU/lb
Embodied Water
140 L/kg
Embodied Water
140 L/kg 17 gal/lb
Registered Designations & Aliases
S44330UNS S44330 Stainless Steel
Standards
ASTM A240 ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
ASTM A240 ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 2012 Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011 Corrosion of Stainless Steels, A. John Sedriks, 1996