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SAE-AISI 51B60 Steel vs. ASTM A572 Steel

Both SAE-AISI 51B60 steel and ASTM A572 steel are iron alloys.

For each property being compared, the top bar is SAE-AISI 51B60 steel and the bottom bar is ASTM A572 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
140 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
18 to 25
Fatigue Strength, MPa 280 to 340
240 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 390 to 420
300 to 380
Tensile Strength: Ultimate (UTS), MPa 660
470 to 620
Tensile Strength: Yield (Proof), MPa 400 to 550
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 43
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2 to 8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 49
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 120
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 800
290 to 690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
17 to 22
Strength to Weight: Bending, points 22
17 to 21
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 19
14 to 18