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EN 1.6957 Steel vs. S21460 Stainless Steel

Both EN 1.6957 steel and S21460 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.6957 steel and the bottom bar is S21460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
46
Fatigue Strength, MPa 530
390
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 570
580
Tensile Strength: Ultimate (UTS), MPa 930
830
Tensile Strength: Yield (Proof), MPa 780
430

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 450
920
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
18

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
14
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 2.1
3.0
Embodied Energy, MJ/kg 29
43
Embodied Water, L/kg 60
160

Common Calculations

PREN (Pitting Resistance) 2.7
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
320
Resilience: Unit (Modulus of Resilience), kJ/m3 1630
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33
30
Strength to Weight: Bending, points 27
26
Thermal Shock Resistance, points 27
17

Alloy Composition

Carbon (C), % 0.22 to 0.32
0 to 0.12
Chromium (Cr), % 1.2 to 1.8
17 to 19
Iron (Fe), % 92.7 to 94.7
57.3 to 63.7
Manganese (Mn), % 0.15 to 0.4
14 to 16
Molybdenum (Mo), % 0.25 to 0.45
0
Nickel (Ni), % 3.4 to 4.0
5.0 to 6.0
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.010
0 to 0.060
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0 to 0.0070
0 to 0.030
Vanadium (V), % 0.050 to 0.15
0