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S31730 Stainless Steel vs. Grade VDSiCrV Steel

Both S31730 stainless steel and grade VDSiCrV steel are iron alloys. They have 59% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is grade VDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
630
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 540
2100

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 990
420
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.3
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 4.6
1.9
Embodied Energy, MJ/kg 63
26
Embodied Water, L/kg 180
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
75
Strength to Weight: Bending, points 18
47
Thermal Shock Resistance, points 12
63

Alloy Composition

Carbon (C), % 0 to 0.030
0.5 to 0.7
Chromium (Cr), % 17 to 19
0.5 to 1.0
Copper (Cu), % 4.0 to 5.0
0 to 0.060
Iron (Fe), % 52.4 to 61
96.1 to 97.8
Manganese (Mn), % 0 to 2.0
0.4 to 0.9
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 15 to 16.5
0
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
1.2 to 1.7
Sulfur (S), % 0 to 0.010
0 to 0.020
Vanadium (V), % 0
0.1 to 0.25