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Grade TDSiCr Steel vs. S30815 Stainless Steel

Both grade TDSiCr steel and S30815 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 26 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 grade TDSiCr steel and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 590
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Reduction in Area, % 48
56
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 1950
680

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Mechanical, °C 410
1020
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.5
3.3
Embodied Energy, MJ/kg 20
47
Embodied Water, L/kg 48
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 70
25
Strength to Weight: Bending, points 45
22
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 58
15

Alloy Composition

Carbon (C), % 0.5 to 0.6
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0.5 to 0.8
20 to 22
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 96.6 to 97.8
62.8 to 68.4
Manganese (Mn), % 0.5 to 0.9
0 to 0.8
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 1.2 to 1.6
1.4 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.030