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SAE-AISI D7 Steel vs. S35135 Stainless Steel

Both SAE-AISI D7 steel and S35135 stainless steel are iron alloys. They have 51% of their average alloy composition in common. There are 20 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 SAE-AISI D7 steel and the bottom bar is S35135 stainless steel.

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
79
Tensile Strength: Ultimate (UTS), MPa 800 to 2120
590

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 10
37
Density, g/cm3 7.6
8.1
Embodied Carbon, kg CO2/kg material 11
6.8
Embodied Energy, MJ/kg 180
94
Embodied Water, L/kg 130
220

Common Calculations

PREN (Pitting Resistance) 16
37
Stiffness to Weight: Axial, points 14
14
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
13

Alloy Composition

Carbon (C), % 2.2 to 2.5
0 to 0.080
Chromium (Cr), % 11.5 to 13.5
20 to 25
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 76.6 to 81.9
28.3 to 45
Manganese (Mn), % 0 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.7 to 1.2
4.0 to 4.8
Nickel (Ni), % 0 to 0.3
30 to 38
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.6
0.6 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.4 to 1.0
Vanadium (V), % 3.8 to 4.4
0