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SAE-AISI 8637 Steel vs. EN 1.0580 Steel

Both SAE-AISI 8637 steel and EN 1.0580 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI 8637 steel and the bottom bar is EN 1.0580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
5.6 to 25
Fatigue Strength, MPa 260
210 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340
340 to 360
Tensile Strength: Ultimate (UTS), MPa 540
540 to 620
Tensile Strength: Yield (Proof), MPa 360
290 to 450

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
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 38
51
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 50
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
31 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 340
230 to 540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
19 to 22
Strength to Weight: Bending, points 19
19 to 21
Thermal Diffusivity, mm2/s 10
14
Thermal Shock Resistance, points 18
17 to 20

Alloy Composition

Carbon (C), % 0.35 to 0.4
0 to 0.22
Chromium (Cr), % 0.4 to 0.6
0
Iron (Fe), % 96.6 to 97.8
97.5 to 100
Manganese (Mn), % 0.75 to 1.0
0 to 1.6
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 0.55
Sulfur (S), % 0 to 0.040
0 to 0.045