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SAE-AISI T15 Steel vs. EN 1.4122 Stainless Steel

Both SAE-AISI T15 steel and EN 1.4122 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 (10, 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 1.4122 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 76
77
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
790 to 850

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1690
1440
Melting Onset (Solidus), °C 1640
1400
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 43
9.5
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 16
2.4
Embodied Energy, MJ/kg 250
33
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 27
20
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 26 to 71
28 to 31
Strength to Weight: Bending, points 22 to 43
25 to 26
Thermal Diffusivity, mm2/s 5.6
4.0
Thermal Shock Resistance, points 26 to 70
28 to 30

Alloy Composition

Carbon (C), % 1.5 to 1.6
0.33 to 0.45
Chromium (Cr), % 3.8 to 5.0
15.5 to 17.5
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 67.5 to 73.5
77.2 to 83.4
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 0 to 1.0
0.8 to 1.3
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.0
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

Comparable Variants