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SAE-AISI M48 Steel vs. S40910 Stainless Steel

Both SAE-AISI M48 steel and S40910 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 20 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 M48 steel and the bottom bar is S40910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 890 to 2390
430

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1670
1450
Melting Onset (Solidus), °C 1620
1410
Specific Heat Capacity, J/kg-K 420
480
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 48
7.0
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 13
2.0
Embodied Energy, MJ/kg 190
28
Embodied Water, L/kg 160
94

Common Calculations

PREN (Pitting Resistance) 37
11
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 28 to 76
16
Strength to Weight: Bending, points 23 to 45
16
Thermal Shock Resistance, points 26 to 71
16

Alloy Composition

Carbon (C), % 1.4 to 1.5
0 to 0.030
Chromium (Cr), % 3.5 to 4.0
10.5 to 11.7
Cobalt (Co), % 8.0 to 10
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 63.8 to 69.8
85 to 89.5
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.8 to 5.5
0
Nickel (Ni), % 0 to 0.3
0 to 0.5
Niobium (Nb), % 0
0 to 0.17
Nitrogen (N), % 0
0 to 0.030
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 0.020
Titanium (Ti), % 0
0 to 0.5
Tungsten (W), % 9.5 to 10.5
0
Vanadium (V), % 2.8 to 3.3
0