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EN 1.4986 Stainless Steel vs. EN 1.6920 Steel

Both EN 1.4986 stainless steel and EN 1.6920 steel are iron alloys. They have 66% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4986 stainless steel and the bottom bar is EN 1.6920 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
19
Fatigue Strength, MPa 350
290
Impact Strength: V-Notched Charpy, J 57
45
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 460
400
Tensile Strength: Ultimate (UTS), MPa 750
640
Tensile Strength: Yield (Proof), MPa 560
420

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
420
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.8
1.7
Embodied Energy, MJ/kg 67
23
Embodied Water, L/kg 150
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 790
470
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
22
Strength to Weight: Bending, points 23
21
Thermal Diffusivity, mm2/s 4.0
10
Thermal Shock Resistance, points 16
19

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0 to 0.17
Chromium (Cr), % 15.5 to 17.5
0.5 to 1.0
Iron (Fe), % 59.4 to 66.6
95.7 to 98
Manganese (Mn), % 0 to 1.5
1.0 to 1.5
Molybdenum (Mo), % 1.6 to 2.0
0.2 to 0.35
Nickel (Ni), % 15.5 to 17.5
0.3 to 0.7
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0.3 to 0.6
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0.050 to 0.1