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EN 1.4938 Stainless Steel vs. SAE-AISI T15 Steel

Both EN 1.4938 stainless steel and SAE-AISI T15 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 (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4938 stainless steel and the bottom bar is SAE-AISI T15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
830 to 2240

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1460
1690
Melting Onset (Solidus), °C 1420
1640
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 30
21
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
43
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.3
16
Embodied Energy, MJ/kg 47
250
Embodied Water, L/kg 110
140

Common Calculations

PREN (Pitting Resistance) 18
27
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 31 to 37
26 to 71
Strength to Weight: Bending, points 26 to 29
22 to 43
Thermal Diffusivity, mm2/s 8.1
5.6
Thermal Shock Resistance, points 30 to 35
26 to 70

Alloy Composition

Carbon (C), % 0.080 to 0.15
1.5 to 1.6
Chromium (Cr), % 11 to 12.5
3.8 to 5.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 80.5 to 84.8
67.5 to 73.5
Manganese (Mn), % 0.4 to 0.9
0.15 to 0.4
Molybdenum (Mo), % 1.5 to 2.0
0 to 1.0
Nickel (Ni), % 2.0 to 3.0
0 to 0.3
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
11.8 to 13
Vanadium (V), % 0.25 to 0.4
4.5 to 5.3

Comparable Variants