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ASTM A356 Grade 10 vs. ASTM A387 Grade 11 Steel

Both ASTM A356 grade 10 and ASTM A387 grade 11 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 10 and the bottom bar is ASTM A387 grade 11 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
25
Fatigue Strength, MPa 300
200 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 670
500 to 600
Tensile Strength: Yield (Proof), MPa 430
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 460
430
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
2.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.6
Embodied Energy, MJ/kg 23
21
Embodied Water, L/kg 59
53

Common Calculations

PREN (Pitting Resistance) 5.9
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
100 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 480
200 to 320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
18 to 21
Strength to Weight: Bending, points 22
18 to 20
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 19
15 to 18

Alloy Composition

Carbon (C), % 0 to 0.2
0.050 to 0.17
Chromium (Cr), % 2.0 to 2.8
1.0 to 1.5
Iron (Fe), % 94.4 to 96.6
96.2 to 97.6
Manganese (Mn), % 0.5 to 0.8
0.4 to 0.65
Molybdenum (Mo), % 0.9 to 1.2
0.45 to 0.65
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.6
0.5 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025