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SAE-AISI 52100 Steel vs. EN 1.7720 Steel

Both SAE-AISI 52100 steel and EN 1.7720 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 52100 steel and the bottom bar is EN 1.7720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 20
19
Fatigue Strength, MPa 250 to 340
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 590 to 2010
590
Tensile Strength: Yield (Proof), MPa 360 to 560
340

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
410
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
40
Thermal Expansion, µm/m-K 12 to 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
2.2
Embodied Energy, MJ/kg 20
30
Embodied Water, L/kg 51
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54 to 310
97
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 840
300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 72
21
Strength to Weight: Bending, points 20 to 45
20
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 19 to 61
17

Alloy Composition

Carbon (C), % 0.93 to 1.1
0.1 to 0.15
Chromium (Cr), % 1.4 to 1.6
0.3 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 96.5 to 97.3
96.6 to 98.6
Manganese (Mn), % 0.25 to 0.45
0.4 to 0.7
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0
0.22 to 0.3