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EN 1.4971 Stainless Steel vs. SAE-AISI M52 Steel

Both EN 1.4971 stainless steel and SAE-AISI M52 steel are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. 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 EN 1.4971 stainless steel and the bottom bar is SAE-AISI M52 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
75
Tensile Strength: Ultimate (UTS), MPa 800
710 to 2280

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1410
1470
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 13
31
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
12
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 7.6
7.5
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 300
89

Common Calculations

PREN (Pitting Resistance) 38
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
25 to 80
Strength to Weight: Bending, points 23
22 to 49
Thermal Diffusivity, mm2/s 3.4
8.4
Thermal Shock Resistance, points 19
21 to 67

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.85 to 1.0
Chromium (Cr), % 20 to 22.5
3.5 to 4.3
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 24.3 to 37.1
84.4 to 88.9
Manganese (Mn), % 0 to 2.0
0.15 to 0.45
Molybdenum (Mo), % 2.5 to 3.5
4.0 to 4.9
Nickel (Ni), % 19 to 21
0 to 0.3
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0.75 to 1.5
Vanadium (V), % 0
1.7 to 2.3