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ASTM Grade HP Steel vs. Grade TDSiCr Steel

Both ASTM grade HP steel and grade TDSiCr steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HP steel and the bottom bar is grade TDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
590
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 490
1950

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1370
1440
Melting Onset (Solidus), °C 1330
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
46
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
2.2
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.8
1.5
Embodied Energy, MJ/kg 82
20
Embodied Water, L/kg 220
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
70
Strength to Weight: Bending, points 17
45
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 11
58

Alloy Composition

Carbon (C), % 0.35 to 0.75
0.5 to 0.6
Chromium (Cr), % 24 to 28
0.5 to 0.8
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 29.2 to 42.7
96.6 to 97.8
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.5
1.2 to 1.6
Sulfur (S), % 0 to 0.040
0 to 0.020