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S15700 Stainless Steel vs. EN 1.4931 Steel

Both S15700 stainless steel and EN 1.4931 steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S15700 stainless steel and the bottom bar is EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 460
240
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 1.1 to 29
17
Fatigue Strength, MPa 370 to 770
410
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 1180 to 1890
810
Tensile Strength: Yield (Proof), MPa 500 to 1770
620

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 870
600
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
24
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
11

Otherwise Unclassified Properties

Base Metal Price, % relative 15
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.4
2.9
Embodied Energy, MJ/kg 47
42
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 23
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 270
130
Resilience: Unit (Modulus of Resilience), kJ/m3 640 to 4660
970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 42 to 67
29
Strength to Weight: Bending, points 32 to 43
25
Thermal Diffusivity, mm2/s 4.2
6.5
Thermal Shock Resistance, points 39 to 63
22

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0.2 to 0.26
Chromium (Cr), % 14 to 16
11.3 to 12.2
Iron (Fe), % 69.6 to 76.8
83.2 to 86.8
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 2.0 to 3.0
1.0 to 1.2
Nickel (Ni), % 6.5 to 7.7
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35