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SAE-AISI T1 Steel vs. EN 1.4451 Stainless Steel

Both SAE-AISI T1 steel and EN 1.4451 stainless steel are iron alloys. They have 65% 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 1.4451 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
750

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Melting Completion (Liquidus), °C 1810
1430
Melting Onset (Solidus), °C 1750
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 20
17
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 45
20
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
3.8
Embodied Energy, MJ/kg 130
53
Embodied Water, L/kg 90
190

Common Calculations

PREN (Pitting Resistance) 34
39
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23 to 64
27
Strength to Weight: Bending, points 20 to 40
23
Thermal Diffusivity, mm2/s 5.2
4.5
Thermal Shock Resistance, points 23 to 64
16

Alloy Composition

Carbon (C), % 0.65 to 0.8
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
25 to 27
Copper (Cu), % 0 to 0.25
2.8 to 3.5
Iron (Fe), % 73.2 to 77.2
56.2 to 64.6
Manganese (Mn), % 0.1 to 0.4
0 to 1.5
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 0.3
5.0 to 7.0
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 17.3 to 18.8
0
Vanadium (V), % 0.9 to 1.3
0