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EN 1.4470 Stainless Steel vs. ASTM B522 Class II

EN 1.4470 stainless steel belongs to the iron alloys classification, while ASTM B522 class II belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN 1.4470 stainless steel and the bottom bar is ASTM B522 class II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
96
Elongation at Break, % 23
1.1 to 28
Poisson's Ratio 0.27
0.41
Shear Modulus, GPa 80
34
Tensile Strength: Ultimate (UTS), MPa 680
280 to 490
Tensile Strength: Yield (Proof), MPa 480
120 to 210

Thermal Properties

Latent Heat of Fusion, J/g 300
77
Melting Completion (Liquidus), °C 1450
1030
Melting Onset (Solidus), °C 1400
1030
Specific Heat Capacity, J/kg-K 480
160
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
5.7

Otherwise Unclassified Properties

Density, g/cm3 7.8
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
4.4 to 63
Resilience: Unit (Modulus of Resilience), kJ/m3 570
75 to 230
Stiffness to Weight: Axial, points 14
3.1
Stiffness to Weight: Bending, points 25
8.9
Strength to Weight: Axial, points 24
4.4 to 7.8
Strength to Weight: Bending, points 22
5.5 to 8.0
Thermal Shock Resistance, points 18
13 to 24

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 21 to 23
0
Gold (Au), % 0
68.5 to 69.5
Iron (Fe), % 63.7 to 71.9
0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Platinum (Pt), % 0
5.5 to 6.5
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
24.5 to 25.5
Sulfur (S), % 0 to 0.025
0 to 0.010
Residuals, % 0
0 to 0.26