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S20910 Stainless Steel vs. EN 1.6957 Steel

Both S20910 stainless steel and EN 1.6957 steel are iron alloys. They have 63% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S20910 stainless steel and the bottom bar is EN 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 290
280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 39
18
Fatigue Strength, MPa 310 to 460
530
Poisson's Ratio 0.28
0.29
Reduction in Area, % 56 to 62
46
Shear Modulus, GPa 79
73
Shear Strength, MPa 500 to 570
570
Tensile Strength: Ultimate (UTS), MPa 780 to 940
930
Tensile Strength: Yield (Proof), MPa 430 to 810
780

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1080
450
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
47
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.8
2.1
Embodied Energy, MJ/kg 68
29
Embodied Water, L/kg 180
60

Common Calculations

PREN (Pitting Resistance) 34
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
160
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
1630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 33
33
Strength to Weight: Bending, points 24 to 27
27
Thermal Diffusivity, mm2/s 3.6
13
Thermal Shock Resistance, points 17 to 21
27

Alloy Composition

Carbon (C), % 0 to 0.060
0.22 to 0.32
Chromium (Cr), % 20.5 to 23.5
1.2 to 1.8
Iron (Fe), % 52.1 to 62.1
92.7 to 94.7
Manganese (Mn), % 4.0 to 6.0
0.15 to 0.4
Molybdenum (Mo), % 1.5 to 3.0
0.25 to 0.45
Nickel (Ni), % 11.5 to 13.5
3.4 to 4.0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 0.75
0 to 0.15
Sulfur (S), % 0 to 0.030
0 to 0.0070
Vanadium (V), % 0.1 to 0.3
0.050 to 0.15