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Grade TDSiCr Steel vs. AISI 304LN Stainless Steel

Both grade TDSiCr steel and AISI 304LN stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 25 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 AISI 304LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 590
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 1950
580 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 410
960
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
16
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.1
Embodied Energy, MJ/kg 20
44
Embodied Water, L/kg 48
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 70
21 to 41
Strength to Weight: Bending, points 45
20 to 31
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 58
13 to 26

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.030
Chromium (Cr), % 0.5 to 0.8
18 to 20
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 96.6 to 97.8
65 to 73.9
Manganese (Mn), % 0.5 to 0.9
0 to 2.0
Nickel (Ni), % 0
8.0 to 12
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 1.2 to 1.6
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030