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SAE-AISI M48 Steel vs. S44627 Stainless Steel

Both SAE-AISI M48 steel and S44627 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M48 steel and the bottom bar is S44627 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 890 to 2390
490

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1670
1440
Melting Onset (Solidus), °C 1620
1400
Specific Heat Capacity, J/kg-K 420
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 48
14
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 13
2.9
Embodied Energy, MJ/kg 190
41
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 37
30
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 28 to 76
18
Strength to Weight: Bending, points 23 to 45
18
Thermal Shock Resistance, points 26 to 71
16

Alloy Composition

Carbon (C), % 1.4 to 1.5
0 to 0.010
Chromium (Cr), % 3.5 to 4.0
25 to 27.5
Cobalt (Co), % 8.0 to 10
0
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 63.8 to 69.8
69.2 to 74.2
Manganese (Mn), % 0.15 to 0.4
0 to 0.4
Molybdenum (Mo), % 4.8 to 5.5
0.75 to 1.5
Nickel (Ni), % 0 to 0.3
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.2
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 9.5 to 10.5
0
Vanadium (V), % 2.8 to 3.3
0