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SAE-AISI M30 Steel vs. S66286 Stainless Steel

Both SAE-AISI M30 steel and S66286 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M30 steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 800 to 2170
620 to 1020

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1550
1430
Melting Onset (Solidus), °C 1500
1370
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 26
26
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 7.2
6.0
Embodied Energy, MJ/kg 100
87
Embodied Water, L/kg 120
170

Common Calculations

PREN (Pitting Resistance) 35
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 74
22 to 36
Strength to Weight: Bending, points 24 to 46
20 to 28
Thermal Diffusivity, mm2/s 6.6
4.0
Thermal Shock Resistance, points 25 to 67
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0.75 to 0.85
0 to 0.080
Chromium (Cr), % 3.5 to 4.3
13.5 to 16
Cobalt (Co), % 4.5 to 5.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.2 to 80.9
49.1 to 59.5
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 7.8 to 9.0
1.0 to 1.5
Nickel (Ni), % 0 to 0.3
24 to 27
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Tungsten (W), % 1.3 to 2.3
0
Vanadium (V), % 1.0 to 1.4
0.1 to 0.5

Comparable Variants