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S31277 Stainless Steel vs. SAE-AISI M47 Steel

Both S31277 stainless steel and SAE-AISI M47 steel are iron alloys. They have 53% of their average alloy composition in common. There are 20 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 S31277 stainless steel and the bottom bar is SAE-AISI M47 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 860
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1460
1540
Melting Onset (Solidus), °C 1410
1500
Specific Heat Capacity, J/kg-K 460
450
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 36
26
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 6.7
7.4
Embodied Energy, MJ/kg 90
100
Embodied Water, L/kg 220
120

Common Calculations

PREN (Pitting Resistance) 51
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
28 to 79
Strength to Weight: Bending, points 25
24 to 48
Thermal Shock Resistance, points 19
27 to 77

Alloy Composition

Carbon (C), % 0 to 0.020
1.1 to 1.2
Chromium (Cr), % 20.5 to 23
3.5 to 4.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0.5 to 1.5
0 to 0.25
Iron (Fe), % 35.5 to 46.2
78.7 to 85
Manganese (Mn), % 0 to 3.0
0.15 to 0.4
Molybdenum (Mo), % 6.5 to 8.0
9.3 to 10
Nickel (Ni), % 26 to 28
0 to 0.3
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0.2 to 0.45
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
1.3 to 1.8
Vanadium (V), % 0
1.2 to 1.4