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SAE-AISI T15 Steel vs. EN 1.4903 Stainless Steel

Both SAE-AISI T15 steel and EN 1.4903 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T15 steel and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
670 to 680

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1690
1460
Melting Onset (Solidus), °C 1640
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 21
26
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 43
7.0
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 16
2.6
Embodied Energy, MJ/kg 250
36
Embodied Water, L/kg 140
88

Common Calculations

PREN (Pitting Resistance) 27
13
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 26 to 71
24
Strength to Weight: Bending, points 22 to 43
22
Thermal Diffusivity, mm2/s 5.6
7.0
Thermal Shock Resistance, points 26 to 70
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 1.5 to 1.6
0.080 to 0.12
Chromium (Cr), % 3.8 to 5.0
8.0 to 9.5
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 67.5 to 73.5
87.1 to 90.5
Manganese (Mn), % 0.15 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 0 to 1.0
0.85 to 1.1
Nickel (Ni), % 0 to 0.3
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0.18 to 0.25