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Grade VDSiCr Steel vs. S31277 Stainless Steel

Both grade VDSiCr steel and S31277 stainless steel are iron alloys. They have 43% of their average alloy composition in common. There are 20 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 grade VDSiCr steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 1950
860

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
36
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 1.5
6.7
Embodied Energy, MJ/kg 20
90
Embodied Water, L/kg 48
220

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 70
29
Strength to Weight: Bending, points 45
25
Thermal Shock Resistance, points 58
19

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.020
Chromium (Cr), % 0.5 to 0.8
20.5 to 23
Copper (Cu), % 0 to 0.060
0.5 to 1.5
Iron (Fe), % 96.6 to 97.8
35.5 to 46.2
Manganese (Mn), % 0.5 to 0.9
0 to 3.0
Molybdenum (Mo), % 0
6.5 to 8.0
Nickel (Ni), % 0
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 1.2 to 1.6
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.010