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SAE-AISI T1 Steel vs. ACI-ASTM CH20 Steel

Both SAE-AISI T1 steel and ACI-ASTM CH20 steel are iron alloys. They have 65% of their average alloy composition in common. There are 22 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 SAE-AISI T1 steel and the bottom bar is ACI-ASTM CH20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
610

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Melting Completion (Liquidus), °C 1810
1410
Melting Onset (Solidus), °C 1750
1430
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 20
14
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 45
20
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
3.7
Embodied Energy, MJ/kg 130
53
Embodied Water, L/kg 90
180

Common Calculations

PREN (Pitting Resistance) 34
25
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23 to 64
22
Strength to Weight: Bending, points 20 to 40
21
Thermal Diffusivity, mm2/s 5.2
3.7
Thermal Shock Resistance, points 23 to 64
15

Alloy Composition

Carbon (C), % 0.65 to 0.8
0 to 0.2
Chromium (Cr), % 3.8 to 4.5
22 to 26
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.2 to 77.2
54.7 to 66
Manganese (Mn), % 0.1 to 0.4
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.3
12 to 15
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.4
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 17.3 to 18.8
0
Vanadium (V), % 0.9 to 1.3
0