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SAE-AISI M3 Class 1 Steel vs. N08700 Stainless Steel

Both SAE-AISI M3 class 1 steel and N08700 stainless steel are iron alloys. They have 57% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 1 steel and the bottom bar is N08700 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 77
79
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
620

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1570
1400
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 26
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
32
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 10
6.0
Embodied Energy, MJ/kg 150
82
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 33
36
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
21
Strength to Weight: Bending, points 22 to 44
20
Thermal Diffusivity, mm2/s 7.2
3.5
Thermal Shock Resistance, points 24 to 67
14

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.040
Chromium (Cr), % 3.8 to 4.5
19 to 23
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 76.9 to 82.9
42 to 52.7
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 4.8 to 6.5
4.3 to 5.0
Nickel (Ni), % 0 to 0.3
24 to 26
Niobium (Nb), % 0
0 to 0.4
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
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0