MakeItFrom.com
Menu (ESC)

SAE-AISI M1 Steel vs. AISI 409 Stainless Steel

Both SAE-AISI M1 steel and AISI 409 stainless steel are iron alloys. They have 87% 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 M1 steel and the bottom bar is AISI 409 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 730 to 2140
420

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1560
1450
Melting Onset (Solidus), °C 1510
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 29
25
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 18
6.5
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 7.0
2.0
Embodied Energy, MJ/kg 99
28
Embodied Water, L/kg 98
94

Common Calculations

PREN (Pitting Resistance) 35
11
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 73
15
Strength to Weight: Bending, points 22 to 45
16
Thermal Diffusivity, mm2/s 8.0
6.7
Thermal Shock Resistance, points 23 to 66
15

Alloy Composition

Carbon (C), % 0.78 to 0.88
0 to 0.080
Chromium (Cr), % 3.5 to 4.0
10.5 to 11.7
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81 to 84.8
84.9 to 89.5
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 8.2 to 9.2
0
Nickel (Ni), % 0 to 0.3
0 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.75
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0