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SAE-AISI M10 Steel vs. AISI 321 Stainless Steel

Both SAE-AISI M10 steel and AISI 321 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M10 steel and the bottom bar is AISI 321 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 740 to 2170
590 to 690

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1520
1430
Melting Onset (Solidus), °C 1470
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 31
16
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 14
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 8.3
3.2
Embodied Energy, MJ/kg 120
45
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 31
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 76
21 to 25
Strength to Weight: Bending, points 23 to 47
20 to 22
Thermal Diffusivity, mm2/s 8.5
4.1
Thermal Shock Resistance, points 23 to 68
13 to 15

Alloy Composition

Carbon (C), % 0.84 to 1.1
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
17 to 19
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 82.3 to 85.6
65.3 to 74
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Molybdenum (Mo), % 7.8 to 8.5
0
Nickel (Ni), % 0 to 0.3
9.0 to 12
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.45
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.7
Vanadium (V), % 1.8 to 2.2
0