UNS S30452 (XM-21) Stainless Steel
Austenitic & General Stainless Steels
Property Overview
Density7.8g/cm³
Elastic Modulus200GPa
Tensile Strength660MPa
Yield Strength310MPa
Brinell Hardness210HB
Maximum Service Temperature960°C
Chemical Composition
C
0 to 0.080%
CR
18 to 20%
NI
8.0 to 10.5%
MN
0 to 2.0%
SI
0 to 0.75%
N
0.16 to 0.3%
P
0 to 0.045%
S
0 to 0.030%
FE
66.3 to 73.8%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
34 %
Fatigue Strength
250 MPa
Poisson's Ratio
0.28
Shear Modulus
77 GPa
Shear Strength
440 MPa
Tensile Strength: Ultimate (UTS)
660 MPa
Tensile Strength: Yield (Proof)
310 MPa
Hardness
Brinell Hardness
210
Rockwell B Hardness
88
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
420 °C
Maximum Temperature: Mechanical
960 °C
Melting Completion (Liquidus)
1420 °C
Melting Onset (Solidus)
1380 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
16 W/m-K
Thermal Diffusivity
4.2 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
15 points
Electrical
Electrical Conductivity: Equal Volume
2.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.7 % IACS
Calculated
PREN (Pitting Resistance)
23
Resilience: Ultimate (Unit Rupture Work)
180 MJ/m 3
Resilience: Unit (Modulus of Resilience)
250 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
22 points
Environmental
Base Metal Price
15 % relative
Embodied Carbon
3.0 kg CO 2 /kg material
Embodied Energy
43 MJ/kg
Embodied Energy
43 MJ/kg 18 x 10 3 BTU/lb
Embodied Water
150 L/kg
Embodied Water
150 L/kg 17 gal/lb
Registered Designations & Aliases
S30452UNS S30452 (XM-21) Stainless SteelXM-21
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 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
ASTM A959 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels