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ASTM Grade HG10 MNN Steel vs. SAE-AISI D7 Steel

Both ASTM grade HG10 MNN steel and SAE-AISI D7 steel are iron alloys. They have 76% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HG10 MNN steel and the bottom bar is SAE-AISI D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 590
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
27
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 21
10
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 4.0
11
Embodied Energy, MJ/kg 58
180
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 25
16
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
29 to 78
Strength to Weight: Bending, points 20
25 to 48
Thermal Diffusivity, mm2/s 3.9
7.4
Thermal Shock Resistance, points 13
27 to 72

Alloy Composition

Carbon (C), % 0.070 to 0.11
2.2 to 2.5
Chromium (Cr), % 18.5 to 20.5
11.5 to 13.5
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 57.9 to 66.5
76.6 to 81.9
Manganese (Mn), % 3.0 to 5.0
0 to 0.6
Molybdenum (Mo), % 0.25 to 0.45
0.7 to 1.2
Nickel (Ni), % 11.5 to 13.5
0 to 0.3
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
3.8 to 4.4