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SAE-AISI 1080 Steel vs. ASTM Grade HP Steel

Both SAE-AISI 1080 steel and ASTM grade HP steel are iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1080 steel and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
5.1
Fatigue Strength, MPa 300 to 360
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Tensile Strength: Ultimate (UTS), MPa 770 to 870
490
Tensile Strength: Yield (Proof), MPa 480 to 590
260

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1370
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
5.8
Embodied Energy, MJ/kg 19
82
Embodied Water, L/kg 46
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 84
21
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 920
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 31
17
Strength to Weight: Bending, points 24 to 26
17
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 25 to 29
11

Alloy Composition

Carbon (C), % 0.75 to 0.88
0.35 to 0.75
Chromium (Cr), % 0
24 to 28
Iron (Fe), % 98.1 to 98.7
29.2 to 42.7
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 2.5
Sulfur (S), % 0 to 0.050
0 to 0.040