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SAE-AISI 1026 Steel vs. ASTM A242 HSLA Steel

Both SAE-AISI 1026 steel and ASTM A242 HSLA 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 SAE-AISI 1026 steel and the bottom bar is ASTM A242 HSLA steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 27
22
Fatigue Strength, MPa 200 to 310
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 320 to 340
310
Tensile Strength: Ultimate (UTS), MPa 500 to 550
490
Tensile Strength: Yield (Proof), MPa 270 to 470
330

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
52
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.1

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
95
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 580
290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 20
17
Strength to Weight: Bending, points 18 to 19
17
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 16 to 18
14

Alloy Composition

Carbon (C), % 0.22 to 0.28
0 to 0.15
Copper (Cu), % 0
0.2 to 0.45
Iron (Fe), % 98.7 to 99.18
98.2 to 99.8
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.15
Sulfur (S), % 0 to 0.050
0 to 0.050