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SAE-AISI 52100 Steel vs. ASTM A225 Steel

Both SAE-AISI 52100 steel and ASTM A225 steel are iron alloys.

For each property being compared, the top bar is SAE-AISI 52100 steel and the bottom bar is ASTM A225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
190 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 20
21 to 23
Fatigue Strength, MPa 250 to 340
330 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 370 to 420
390 to 520
Tensile Strength: Ultimate (UTS), MPa 590 to 2010
620 to 830
Tensile Strength: Yield (Proof), MPa 360 to 560
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
52
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
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.8
Embodied Energy, MJ/kg 20
24 to 25
Embodied Water, L/kg 51
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54 to 310
120 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 840
580 to 820
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 72
22 to 29
Strength to Weight: Bending, points 20 to 45
21 to 25
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 19 to 61
18 to 24

Comparable Variants