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SAE-AISI T5 Steel vs. EN 1.4421 Stainless Steel

Both SAE-AISI T5 steel and EN 1.4421 stainless steel are iron alloys. They have 70% 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 T5 steel and the bottom bar is EN 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 860 to 2140
880 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1810
1440
Melting Onset (Solidus), °C 1750
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 21
16
Thermal Expansion, µm/m-K 11
10

Otherwise Unclassified Properties

Base Metal Price, % relative 60
12
Density, g/cm3 9.4
7.8
Embodied Carbon, kg CO2/kg material 11
2.6
Embodied Energy, MJ/kg 170
36
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 37
18
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 25 to 63
31 to 39
Strength to Weight: Bending, points 21 to 39
26 to 30
Thermal Diffusivity, mm2/s 5.5
4.4
Thermal Shock Resistance, points 26 to 66
31 to 39

Alloy Composition

Carbon (C), % 0.75 to 0.85
0 to 0.060
Chromium (Cr), % 3.8 to 5.0
15.5 to 17.5
Cobalt (Co), % 7.0 to 9.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 60.6 to 68.3
74.4 to 80.5
Manganese (Mn), % 0.2 to 0.4
0 to 1.0
Molybdenum (Mo), % 0.5 to 1.3
0 to 0.7
Nickel (Ni), % 0 to 0.3
4.0 to 5.5
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.4
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.8 to 2.4
0

Comparable Variants