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Annealed AISI 403 vs. Annealed SAE-AISI M42

Both annealed AISI 403 and annealed SAE-AISI M42 are iron alloys. Both are furnished in the annealed condition. They have 83% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is annealed AISI 403 and the bottom bar is annealed SAE-AISI M42.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
240
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 530
810

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1450
1540
Melting Onset (Solidus), °C 1400
1490
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 28
20
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
30
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.9
7.4
Embodied Energy, MJ/kg 27
100
Embodied Water, L/kg 99
140

Common Calculations

PREN (Pitting Resistance) 12
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 7.6
5.4
Thermal Shock Resistance, points 20
25

Alloy Composition

Carbon (C), % 0 to 0.15
1.1 to 1.2
Chromium (Cr), % 11.5 to 13
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 84.7 to 88.5
76.3 to 81
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0
9.0 to 10
Nickel (Ni), % 0 to 0.6
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.5
0.15 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.2 to 1.9
Vanadium (V), % 0
1.0 to 1.4