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EN 1.4981 Stainless Steel vs. SAE-AISI M52 Steel

Both EN 1.4981 stainless steel and SAE-AISI M52 steel are iron alloys. They have 70% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4981 stainless steel and the bottom bar is SAE-AISI M52 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 610
710 to 2280

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1440
1510
Melting Onset (Solidus), °C 1400
1470
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 16
31
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
10

Otherwise Unclassified Properties

Base Metal Price, % relative 25
12
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.8
7.5
Embodied Energy, MJ/kg 67
110
Embodied Water, L/kg 150
89

Common Calculations

PREN (Pitting Resistance) 22
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
25 to 80
Strength to Weight: Bending, points 20
22 to 49
Thermal Diffusivity, mm2/s 4.3
8.4
Thermal Shock Resistance, points 14
21 to 67

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.85 to 1.0
Chromium (Cr), % 15.5 to 17.5
3.5 to 4.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 59.6 to 66.7
84.4 to 88.9
Manganese (Mn), % 0 to 1.5
0.15 to 0.45
Molybdenum (Mo), % 1.6 to 2.0
4.0 to 4.9
Nickel (Ni), % 15.5 to 17.5
0 to 0.3
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.3 to 0.6
0.2 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
0.75 to 1.5
Vanadium (V), % 0
1.7 to 2.3