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EN 1.8936 Steel vs. EN 1.6920 Steel

Both EN 1.8936 steel and EN 1.6920 steel are iron alloys. Both are furnished in the quenched and tempered condition. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.8936 steel and the bottom bar is EN 1.6920 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
19
Fatigue Strength, MPa 250
290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 370
400
Tensile Strength: Ultimate (UTS), MPa 600
640
Tensile Strength: Yield (Proof), MPa 370
420

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
1.7
Embodied Energy, MJ/kg 24
23
Embodied Water, L/kg 50
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 370
470
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 11
10
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 0 to 0.060
0
Carbon (C), % 0 to 0.2
0 to 0.17
Chromium (Cr), % 0 to 0.3
0.5 to 1.0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 95.5 to 98.9
95.7 to 98
Manganese (Mn), % 1.0 to 1.7
1.0 to 1.5
Molybdenum (Mo), % 0 to 0.1
0.2 to 0.35
Nickel (Ni), % 0 to 1.0
0.3 to 0.7
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.1 to 0.6
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0 to 0.2
0.050 to 0.1