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SAE-AISI M44 Steel vs. AISI 430 Stainless Steel

Both SAE-AISI M44 steel and AISI 430 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M44 steel and the bottom bar is AISI 430 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 78
77
Tensile Strength: Ultimate (UTS), MPa 870 to 2290
500

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1590
1510
Melting Onset (Solidus), °C 1540
1430
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 14
25
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 43
8.5
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 9.9
2.1
Embodied Energy, MJ/kg 150
30
Embodied Water, L/kg 170
120

Common Calculations

PREN (Pitting Resistance) 35
17
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28 to 75
18
Strength to Weight: Bending, points 24 to 46
18
Thermal Diffusivity, mm2/s 3.7
6.7
Thermal Shock Resistance, points 27 to 70
18

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.12
Chromium (Cr), % 4.0 to 4.8
16 to 18
Cobalt (Co), % 11 to 12.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 65.3 to 70.6
79.1 to 84
Manganese (Mn), % 0.2 to 0.4
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 0 to 0.3
0 to 0.75
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.3 to 0.55
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.0 to 5.8
0
Vanadium (V), % 1.9 to 2.2
0