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SAE-AISI 9310 Steel vs. ASTM Grade HD Steel

Both SAE-AISI 9310 steel and ASTM grade HD steel are iron alloys. They have 70% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9310 steel and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 19
9.1
Fatigue Strength, MPa 300 to 390
140
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 820 to 910
590
Tensile Strength: Yield (Proof), MPa 450 to 570
270

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 48
16
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.8
3.1
Embodied Energy, MJ/kg 24
45
Embodied Water, L/kg 57
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 150
44
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 860
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 29 to 32
21
Strength to Weight: Bending, points 25 to 27
20
Thermal Diffusivity, mm2/s 13
4.3
Thermal Shock Resistance, points 24 to 27
19

Alloy Composition

Carbon (C), % 0.080 to 0.13
0 to 0.5
Chromium (Cr), % 1.0 to 1.4
26 to 30
Iron (Fe), % 93.8 to 95.2
58.4 to 70
Manganese (Mn), % 0.45 to 0.65
0 to 1.5
Molybdenum (Mo), % 0.080 to 0.15
0 to 0.5
Nickel (Ni), % 3.0 to 3.5
4.0 to 7.0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.2 to 0.35
0 to 2.0
Sulfur (S), % 0 to 0.012
0 to 0.040