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SAE-AISI T1 Steel vs. EN 1.4938 Stainless Steel

Both SAE-AISI T1 steel and EN 1.4938 stainless steel are iron alloys. They have 80% 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 EN 1.4938 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
870 to 1030

Thermal Properties

Latent Heat of Fusion, J/g 240
270
Melting Completion (Liquidus), °C 1810
1460
Melting Onset (Solidus), °C 1750
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 20
30
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 45
10
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
3.3
Embodied Energy, MJ/kg 130
47
Embodied Water, L/kg 90
110

Common Calculations

PREN (Pitting Resistance) 34
18
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23 to 64
31 to 37
Strength to Weight: Bending, points 20 to 40
26 to 29
Thermal Diffusivity, mm2/s 5.2
8.1
Thermal Shock Resistance, points 23 to 64
30 to 35

Alloy Composition

Carbon (C), % 0.65 to 0.8
0.080 to 0.15
Chromium (Cr), % 3.8 to 4.5
11 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.2 to 77.2
80.5 to 84.8
Manganese (Mn), % 0.1 to 0.4
0.4 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0 to 0.3
2.0 to 3.0
Nitrogen (N), % 0
0.020 to 0.040
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.2 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 17.3 to 18.8
0
Vanadium (V), % 0.9 to 1.3
0.25 to 0.4

Comparable Variants