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S40920 Stainless Steel vs. EN 1.4710 Stainless Steel

Both S40920 stainless steel and EN 1.4710 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 96% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S40920 stainless steel and the bottom bar is EN 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
20
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
74

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 450
360
Maximum Temperature: Mechanical, °C 710
750
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
24
Thermal Expansion, µm/m-K 10
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
6.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
5.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
1.8
Embodied Energy, MJ/kg 28
24
Embodied Water, L/kg 94
76

Common Calculations

PREN (Pitting Resistance) 11
7.2
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 6.9
6.5

Alloy Composition

Carbon (C), % 0 to 0.030
0.2 to 0.35
Chromium (Cr), % 10.5 to 11.7
6.0 to 8.0
Iron (Fe), % 85.1 to 89.4
87.4 to 92.3
Manganese (Mn), % 0 to 1.0
0.5 to 1.0
Molybdenum (Mo), % 0
0 to 0.15
Nickel (Ni), % 0 to 0.5
0 to 0.5
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0.15 to 0.5
0