UNS S44626 (XM-33) Stainless Steel
Ferritic Stainless Steels
Property Overview
Density7.7g/cm³
Elastic Modulus200GPa
Tensile Strength540MPa
Yield Strength350MPa
Brinell Hardness190HB
Maximum Service Temperature1100°C
Chemical Composition
C
0 to 0.060%
CR
25 to 27%
NI
0 to 0.5%
MO
0.75 to 1.5%
MN
0 to 0.75%
SI
0 to 0.75%
N
0 to 0.040%
P
0 to 0.040%
S
0 to 0.020%
CU
0 to 0.2%
TI
0.2 to 1.0%
FE
68.1 to 74.1%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
23 %
Fatigue Strength
230 MPa
Poisson's Ratio
0.27
Shear Modulus
80 GPa
Shear Strength
340 MPa
Tensile Strength: Ultimate (UTS)
540 MPa
Tensile Strength: Yield (Proof)
350 MPa
Hardness
Brinell Hardness
190
Rockwell B Hardness
83
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
300 J/g
Maximum Temperature: Corrosion
560 °C
Maximum Temperature: Mechanical
1100 °C
Melting Completion (Liquidus)
1440 °C
Melting Onset (Solidus)
1390 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
17 W/m-K
Thermal Diffusivity
4.6 mm 2 /s
Thermal Expansion
11 µm/m-K
Thermal Shock Resistance
18 points
Electrical
Electrical Conductivity: Equal Volume
2.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.7 % IACS
Calculated
PREN (Pitting Resistance)
30
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
300 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
26 points
Strength to Weight: Axial
19 points
Strength to Weight: Bending
19 points
Environmental
Base Metal Price
14 % relative
Embodied Carbon
2.9 kg CO 2 /kg material
Embodied Energy
42 MJ/kg
Embodied Energy
42 MJ/kg 18 x 10 3 BTU/lb
Embodied Water
160 L/kg
Embodied Water
160 L/kg 19 gal/lb
Registered Designations & Aliases
S44626UNS S44626 (XM-33) Stainless SteelXM-33
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 A959 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels