ASTM Grade HN (20Cr-25Ni, J94213) Cast Stainless Steel
Austenitic & General Stainless Steels
Property Overview
Density7.9g/cm³
Elastic Modulus200GPa
Tensile Strength500MPa
Yield StrengthUnknown
Brinell Hardness140HB
Maximum Service Temperature1080°C
Chemical Composition
C
0.2 to 0.5%
CR
19 to 23%
NI
23 to 27%
MO
0 to 0.5%
MN
0 to 2.0%
SI
0 to 2.0%
P
0 to 0.040%
S
0 to 0.040%
FE
44.9 to 57.8%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
9.0 %
Poisson's Ratio
0.28
Shear Modulus
77 GPa
Tensile Strength: Ultimate (UTS)
500 MPa
Hardness
Brinell Hardness
140
Physical
Density
7.9 g/cm 3
Thermal
Latent Heat of Fusion
310 J/g
Maximum Temperature: Corrosion
420 °C
Maximum Temperature: Mechanical
1080 °C
Melting Completion (Liquidus)
1400 °C
Melting Onset (Solidus)
1350 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
13 W/m-K
Thermal Diffusivity
3.5 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
11 points
Calculated
PREN (Pitting Resistance)
22
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
26 % relative
Embodied Carbon
4.6 kg CO 2 /kg material
Embodied Energy
66 MJ/kg
Embodied Energy
66 MJ/kg 28 x 10 3 BTU/lb
Embodied Water
180 L/kg
Embodied Water
180 L/kg 22 gal/lb
Registered Designations & Aliases
20Cr-25NiASTM Grade HN (20Cr-25Ni, J94213) Cast Stainless SteelJ94213
Standards
ASTM A297 ASTM A297: Standard Specification for Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat Resistant, for General Application