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SAE-AISI T1 Steel vs. R30556 Alloy

Both SAE-AISI T1 steel and R30556 alloy are iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. 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 R30556 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
780

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Melting Completion (Liquidus), °C 1810
1420
Melting Onset (Solidus), °C 1750
1330
Specific Heat Capacity, J/kg-K 410
450
Thermal Conductivity, W/m-K 20
11
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 45
70
Density, g/cm3 9.3
8.4
Embodied Carbon, kg CO2/kg material 8.2
8.7
Embodied Energy, MJ/kg 130
130
Embodied Water, L/kg 90
300

Common Calculations

PREN (Pitting Resistance) 34
40
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 23 to 64
26
Strength to Weight: Bending, points 20 to 40
22
Thermal Diffusivity, mm2/s 5.2
2.9
Thermal Shock Resistance, points 23 to 64
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.5
Boron (B), % 0
0 to 0.020
Carbon (C), % 0.65 to 0.8
0.050 to 0.15
Chromium (Cr), % 3.8 to 4.5
21 to 23
Cobalt (Co), % 0
16 to 21
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.2 to 77.2
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Manganese (Mn), % 0.1 to 0.4
0.5 to 2.0
Molybdenum (Mo), % 0
2.5 to 4.0
Nickel (Ni), % 0 to 0.3
19 to 22.5
Niobium (Nb), % 0
0 to 0.3
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.4
0.2 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015
Tantalum (Ta), % 0
0.3 to 1.3
Tungsten (W), % 17.3 to 18.8
2.0 to 3.5
Vanadium (V), % 0.9 to 1.3
0
Zinc (Zn), % 0
0.0010 to 0.1