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SAE-AISI M48 Steel vs. Grade 300 Maraging Steel

Both SAE-AISI M48 steel and grade 300 maraging steel are iron alloys. They have 81% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M48 steel and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 890 to 2390
1030 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1670
1480
Melting Onset (Solidus), °C 1620
1430
Specific Heat Capacity, J/kg-K 420
450
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 48
34
Density, g/cm3 8.7
8.2
Embodied Carbon, kg CO2/kg material 13
5.1
Embodied Energy, MJ/kg 190
68
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 37
16
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 28 to 76
35 to 68
Strength to Weight: Bending, points 23 to 45
28 to 43
Thermal Shock Resistance, points 26 to 71
31 to 62

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 1.4 to 1.5
0 to 0.030
Chromium (Cr), % 3.5 to 4.0
0
Cobalt (Co), % 8.0 to 10
8.5 to 9.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 63.8 to 69.8
65 to 68.4
Manganese (Mn), % 0.15 to 0.4
0 to 0.1
Molybdenum (Mo), % 4.8 to 5.5
4.6 to 5.2
Nickel (Ni), % 0 to 0.3
18 to 19
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.15 to 0.4
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.5 to 0.8
Tungsten (W), % 9.5 to 10.5
0
Vanadium (V), % 2.8 to 3.3
0
Zirconium (Zr), % 0
0 to 0.020

Comparable Variants