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EN 1.6580 Steel vs. EN 1.7233 Steel

Both EN 1.6580 steel and EN 1.7233 steel are iron alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.6580 steel and the bottom bar is EN 1.7233 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 350
210 to 290
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 19
18 to 23
Fatigue Strength, MPa 310 to 610
270 to 530
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 450 to 700
450 to 590
Tensile Strength: Ultimate (UTS), MPa 720 to 1170
700 to 960
Tensile Strength: Yield (Proof), MPa 460 to 990
380 to 780

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
430
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 7.8
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
3.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.6
Embodied Energy, MJ/kg 23
21
Embodied Water, L/kg 59
53

Common Calculations

PREN (Pitting Resistance) 3.3
3.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
110 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 2590
380 to 1630
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 41
25 to 34
Strength to Weight: Bending, points 23 to 31
22 to 28
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 21 to 34
21 to 28

Alloy Composition

Carbon (C), % 0.26 to 0.34
0.39 to 0.45
Chromium (Cr), % 1.8 to 2.2
1.2 to 1.5
Iron (Fe), % 93.7 to 95.5
96.2 to 97.5
Manganese (Mn), % 0.3 to 0.6
0.4 to 0.7
Molybdenum (Mo), % 0.3 to 0.5
0.5 to 0.7
Nickel (Ni), % 1.8 to 2.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.035

Comparable Variants