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AISI 201LN Stainless Steel vs. SAE-AISI M3 Class 1 Steel

Both AISI 201LN stainless steel and SAE-AISI M3 class 1 steel are iron alloys. They have 76% 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 AISI 201LN stainless steel and the bottom bar is SAE-AISI M3 class 1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1410
1610
Melting Onset (Solidus), °C 1370
1570
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
26
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 2.6
10
Embodied Energy, MJ/kg 38
150
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 20
33
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27 to 38
26 to 72
Strength to Weight: Bending, points 24 to 30
22 to 44
Thermal Diffusivity, mm2/s 4.0
7.2
Thermal Shock Resistance, points 16 to 23
24 to 67

Alloy Composition

Carbon (C), % 0 to 0.030
1.0 to 1.1
Chromium (Cr), % 16 to 17.5
3.8 to 4.5
Copper (Cu), % 0 to 1.0
0 to 0.25
Iron (Fe), % 67.9 to 73.5
76.9 to 82.9
Manganese (Mn), % 6.4 to 7.5
0.15 to 0.4
Molybdenum (Mo), % 0
4.8 to 6.5
Nickel (Ni), % 4.0 to 5.0
0 to 0.3
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.2 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.3 to 2.8

Comparable Variants