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ASTM A242 HSLA Steel vs. SAE-AISI 1064 Steel

Both ASTM A242 HSLA steel and SAE-AISI 1064 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A242 HSLA steel and the bottom bar is SAE-AISI 1064 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
12 to 13
Fatigue Strength, MPa 230
300
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 310
430 to 440
Tensile Strength: Ultimate (UTS), MPa 490
720 to 730
Tensile Strength: Yield (Proof), MPa 330
470 to 480

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 52
51
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 46
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
79 to 81
Resilience: Unit (Modulus of Resilience), kJ/m3 290
600 to 630
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
25 to 26
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 14
25

Alloy Composition

Carbon (C), % 0 to 0.15
0.6 to 0.7
Copper (Cu), % 0.2 to 0.45
0
Iron (Fe), % 98.2 to 99.8
98.4 to 98.9
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Phosphorus (P), % 0 to 0.15
0 to 0.040
Sulfur (S), % 0 to 0.050
0 to 0.050