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SAE-AISI T15 Steel vs. R30556 Alloy

Both SAE-AISI T15 steel and R30556 alloy are iron alloys. They have 43% 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 T15 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 76
81
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
780

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1690
1420
Melting Onset (Solidus), °C 1640
1330
Specific Heat Capacity, J/kg-K 430
450
Thermal Conductivity, W/m-K 21
11
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 43
70
Density, g/cm3 8.7
8.4
Embodied Carbon, kg CO2/kg material 16
8.7
Embodied Energy, MJ/kg 250
130
Embodied Water, L/kg 140
300

Common Calculations

PREN (Pitting Resistance) 27
40
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 26 to 71
26
Strength to Weight: Bending, points 22 to 43
22
Thermal Diffusivity, mm2/s 5.6
2.9
Thermal Shock Resistance, points 26 to 70
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.5
Boron (B), % 0
0 to 0.020
Carbon (C), % 1.5 to 1.6
0.050 to 0.15
Chromium (Cr), % 3.8 to 5.0
21 to 23
Cobalt (Co), % 4.8 to 5.3
16 to 21
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 67.5 to 73.5
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Manganese (Mn), % 0.15 to 0.4
0.5 to 2.0
Molybdenum (Mo), % 0 to 1.0
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), % 0.15 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), % 11.8 to 13
2.0 to 3.5
Vanadium (V), % 4.5 to 5.3
0
Zinc (Zn), % 0
0.0010 to 0.1