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EN 1.8823 Steel vs. EN 1.7231 Steel

Both EN 1.8823 steel and EN 1.7231 steel are iron alloys. They have a very high 99% of their average alloy composition in common. 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 1.8823 steel and the bottom bar is EN 1.7231 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
240 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
11 to 12
Fatigue Strength, MPa 270
360 to 500
Impact Strength: V-Notched Charpy, J 48
28 to 30
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 530
790 to 930
Tensile Strength: Yield (Proof), MPa 360
570 to 800

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 47
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 22
20
Embodied Water, L/kg 49
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
87 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 360
870 to 1700
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
28 to 33
Strength to Weight: Bending, points 19
24 to 27
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 16
23 to 27

Alloy Composition

Aluminum (Al), % 0.015 to 0.034
0
Carbon (C), % 0 to 0.16
0.38 to 0.45
Chromium (Cr), % 0 to 0.35
0.8 to 1.2
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 95.6 to 99.985
96.4 to 98.1
Manganese (Mn), % 0 to 1.7
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.13
0.15 to 0.3
Nickel (Ni), % 0 to 0.55
0
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.017
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.55
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.12
0