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SAE-AISI 6150 Steel vs. ASTM A225 Steel

Both SAE-AISI 6150 steel and ASTM A225 steel are iron alloys.

For each property being compared, the top bar is SAE-AISI 6150 steel and the bottom bar is ASTM A225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 350
190 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15 to 23
21 to 23
Fatigue Strength, MPa 300 to 750
330 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 400 to 730
390 to 520
Tensile Strength: Ultimate (UTS), MPa 630 to 1200
620 to 830
Tensile Strength: Yield (Proof), MPa 420 to 1160
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
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 8.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.8
Embodied Energy, MJ/kg 28
24 to 25
Embodied Water, L/kg 51
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
120 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3590
580 to 820
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 43
22 to 29
Strength to Weight: Bending, points 21 to 32
21 to 25
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 20 to 38
18 to 24