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EN 1.4123 +A Steel vs. Annealed SAE-AISI T15

Both EN 1.4123 +A steel and annealed SAE-AISI T15 are iron alloys. Both are furnished in the annealed condition. They have 77% of their average alloy composition in common. There are 23 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 1.4123 +A steel and the bottom bar is annealed SAE-AISI T15.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 810
830

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1450
1690
Melting Onset (Solidus), °C 1410
1640
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 23
21
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
43
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 4.2
16
Embodied Energy, MJ/kg 62
250
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 24
27
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 29
26
Strength to Weight: Bending, points 25
22
Thermal Diffusivity, mm2/s 6.3
5.6
Thermal Shock Resistance, points 29
26

Alloy Composition

Carbon (C), % 0.35 to 0.5
1.5 to 1.6
Chromium (Cr), % 14 to 16.5
3.8 to 5.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 76.7 to 84.6
67.5 to 73.5
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 1.0 to 2.5
0 to 1.0
Nickel (Ni), % 0 to 0.5
0 to 0.3
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
11.8 to 13
Vanadium (V), % 0 to 1.5
4.5 to 5.3