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ASTM A387 Grade 2 Steel vs. SAE-AISI 9310 Steel

Both ASTM A387 grade 2 steel and SAE-AISI 9310 steel are iron alloys. They have a very high 96% 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 A387 grade 2 steel and the bottom bar is SAE-AISI 9310 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
540 to 610
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
17 to 19
Fatigue Strength, MPa 190 to 250
300 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300 to 350
510 to 570
Tensile Strength: Ultimate (UTS), MPa 470 to 550
820 to 910
Tensile Strength: Yield (Proof), MPa 260 to 350
450 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
440
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
48
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
4.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.8
Embodied Energy, MJ/kg 20
24
Embodied Water, L/kg 50
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
120 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
540 to 860
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
29 to 32
Strength to Weight: Bending, points 17 to 19
25 to 27
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 14 to 16
24 to 27

Alloy Composition

Carbon (C), % 0.050 to 0.21
0.080 to 0.13
Chromium (Cr), % 0.5 to 0.8
1.0 to 1.4
Iron (Fe), % 97.1 to 98.3
93.8 to 95.2
Manganese (Mn), % 0.55 to 0.8
0.45 to 0.65
Molybdenum (Mo), % 0.45 to 0.6
0.080 to 0.15
Nickel (Ni), % 0
3.0 to 3.5
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0.15 to 0.4
0.2 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.012

Comparable Variants