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EN 1.4931 Steel vs. S21603 Stainless Steel

Both EN 1.4931 steel and S21603 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4931 steel and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
45
Fatigue Strength, MPa 410
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 810
690
Tensile Strength: Yield (Proof), MPa 620
390

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 600
990
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.9
3.6
Embodied Energy, MJ/kg 42
50
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 16
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
270
Resilience: Unit (Modulus of Resilience), kJ/m3 970
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
25
Strength to Weight: Bending, points 25
22
Thermal Shock Resistance, points 22
15

Alloy Composition

Carbon (C), % 0.2 to 0.26
0 to 0.030
Chromium (Cr), % 11.3 to 12.2
17.5 to 22
Iron (Fe), % 83.2 to 86.8
57.6 to 67.8
Manganese (Mn), % 0.5 to 0.8
7.5 to 9.0
Molybdenum (Mo), % 1.0 to 1.2
2.0 to 3.0
Nickel (Ni), % 0 to 1.0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0 to 0.5
0
Vanadium (V), % 0.25 to 0.35
0