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ASTM A372 Grade J Steel vs. Grade TDSiCrV Steel

Both ASTM A372 grade J steel and grade TDSiCrV steel are iron alloys. Their average alloy composition is basically identical. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade J steel and the bottom bar is grade TDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 310
630
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 650 to 1020
2100

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 420
420
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.3
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
1.9
Embodied Energy, MJ/kg 20
26
Embodied Water, L/kg 51
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 36
75
Strength to Weight: Bending, points 21 to 29
47
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 19 to 30
63

Alloy Composition

Carbon (C), % 0.35 to 0.5
0.5 to 0.7
Chromium (Cr), % 0.8 to 1.2
0.5 to 1.0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 96.7 to 97.8
96.1 to 97.8
Manganese (Mn), % 0.75 to 1.1
0.4 to 0.9
Molybdenum (Mo), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0.15 to 0.35
1.2 to 1.7
Sulfur (S), % 0 to 0.010
0 to 0.020
Vanadium (V), % 0
0.1 to 0.25