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SAE-AISI M6 Steel vs. Grade 200 Maraging Steel

Both SAE-AISI M6 steel and grade 200 maraging steel are iron alloys. They have 82% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M6 steel and the bottom bar is grade 200 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 77
74
Tensile Strength: Ultimate (UTS), MPa 840 to 2210
970 to 1500

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1560
1460
Melting Onset (Solidus), °C 1510
1420
Specific Heat Capacity, J/kg-K 440
460
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 39
31
Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.0
4.5
Embodied Energy, MJ/kg 120
59
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 28
11
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 28 to 73
33 to 51
Strength to Weight: Bending, points 24 to 45
27 to 35
Thermal Shock Resistance, points 26 to 68
29 to 45

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), % 0.75 to 0.85
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 11 to 13
8.0 to 9.0
Iron (Fe), % 68.8 to 74.6
67.8 to 71.8
Manganese (Mn), % 0.15 to 0.4
0 to 0.1
Molybdenum (Mo), % 4.5 to 5.5
3.0 to 3.5
Nickel (Ni), % 0
17 to 19
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.2 to 0.45
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.15 to 0.25
Tungsten (W), % 3.8 to 4.8
0
Vanadium (V), % 1.3 to 1.7
0
Zirconium (Zr), % 0
0 to 0.020

Comparable Variants