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ASTM A387 Grade 11 Steel vs. ASTM A302 Alloy Steel

Both ASTM A387 grade 11 steel and ASTM A302 alloy steel are iron alloys. 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 A387 grade 11 steel and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
20 to 23
Fatigue Strength, MPa 200 to 250
250 to 280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 320 to 390
370 to 390
Tensile Strength: Ultimate (UTS), MPa 500 to 600
590 to 620
Tensile Strength: Yield (Proof), MPa 270 to 350
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 430
410
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 39
39 to 51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.2 to 7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.2 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
2.4 to 3.0
Density, g/cm3 7.8
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 1.6
1.5 to 1.6
Embodied Energy, MJ/kg 21
20 to 21
Embodied Water, L/kg 53
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
330 to 410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
21 to 22
Strength to Weight: Bending, points 18 to 20
20 to 21
Thermal Diffusivity, mm2/s 11
10 to 14
Thermal Shock Resistance, points 15 to 18
17 to 18