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SAE-AISI M48 Steel vs. S15500 Stainless Steel

Both SAE-AISI M48 steel and S15500 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 (16, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M48 steel and the bottom bar is S15500 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
890 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1670
1430
Melting Onset (Solidus), °C 1620
1380
Specific Heat Capacity, J/kg-K 420
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 48
13
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 13
2.7
Embodied Energy, MJ/kg 190
39
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 37
15
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 28 to 76
32 to 53
Strength to Weight: Bending, points 23 to 45
26 to 37
Thermal Shock Resistance, points 26 to 71
30 to 50

Alloy Composition

Carbon (C), % 1.4 to 1.5
0 to 0.070
Chromium (Cr), % 3.5 to 4.0
14 to 15.5
Cobalt (Co), % 8.0 to 10
0
Copper (Cu), % 0 to 0.25
2.5 to 4.5
Iron (Fe), % 63.8 to 69.8
71.9 to 79.9
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
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
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
Tungsten (W), % 9.5 to 10.5
0
Vanadium (V), % 2.8 to 3.3
0