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SAE-AISI M48 Steel vs. S44735 Stainless Steel

Both SAE-AISI M48 steel and S44735 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 20 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 M48 steel and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 78
82
Tensile Strength: Ultimate (UTS), MPa 890 to 2390
630

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1670
1460
Melting Onset (Solidus), °C 1620
1420
Specific Heat Capacity, J/kg-K 420
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 48
21
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 13
4.4
Embodied Energy, MJ/kg 190
61
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 37
42
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 22
26
Strength to Weight: Axial, points 28 to 76
23
Strength to Weight: Bending, points 23 to 45
21
Thermal Shock Resistance, points 26 to 71
20

Alloy Composition

Carbon (C), % 1.4 to 1.5
0 to 0.030
Chromium (Cr), % 3.5 to 4.0
28 to 30
Cobalt (Co), % 8.0 to 10
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 63.8 to 69.8
60.7 to 68.4
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.8 to 5.5
3.6 to 4.2
Nickel (Ni), % 0 to 0.3
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.045
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 0.030
Titanium (Ti), % 0
0.2 to 1.0
Tungsten (W), % 9.5 to 10.5
0
Vanadium (V), % 2.8 to 3.3
0