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SAE-AISI D7 Steel vs. AWS E320LR

Both SAE-AISI D7 steel and AWS E320LR are iron alloys. They have 52% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D7 steel and the bottom bar is AWS E320LR.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 800 to 2120
580

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 11
14

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 7.6
8.2
Embodied Carbon, kg CO2/kg material 11
6.2
Embodied Energy, MJ/kg 180
87
Embodied Water, L/kg 130
220

Common Calculations

PREN (Pitting Resistance) 16
28
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 78
20
Strength to Weight: Bending, points 25 to 48
19
Thermal Shock Resistance, points 27 to 72
15

Alloy Composition

Carbon (C), % 2.2 to 2.5
0 to 0.030
Chromium (Cr), % 11.5 to 13.5
19 to 21
Copper (Cu), % 0 to 0.25
3.0 to 4.0
Iron (Fe), % 76.6 to 81.9
32.7 to 42.5
Manganese (Mn), % 0 to 0.6
1.5 to 2.5
Molybdenum (Mo), % 0.7 to 1.2
2.0 to 3.0
Nickel (Ni), % 0 to 0.3
32 to 36
Niobium (Nb), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.6
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 3.8 to 4.4
0