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SAE-AISI D5 Steel vs. S17400 Stainless Steel

Both SAE-AISI D5 steel and S17400 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 26 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 D5 steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.4 to 14
11 to 21
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
75
Shear Strength, MPa 470 to 1180
570 to 830
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
910 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
17
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
14
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.5
2.7
Embodied Energy, MJ/kg 51
39
Embodied Water, L/kg 120
130

Common Calculations

PREN (Pitting Resistance) 15
16
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 73
32 to 49
Strength to Weight: Bending, points 24 to 46
27 to 35
Thermal Diffusivity, mm2/s 7.4
4.5
Thermal Shock Resistance, points 26 to 67
30 to 46

Alloy Composition

Carbon (C), % 1.4 to 1.6
0 to 0.070
Chromium (Cr), % 11 to 13
15 to 17
Cobalt (Co), % 2.5 to 3.5
0
Copper (Cu), % 0 to 0.25
3.0 to 5.0
Iron (Fe), % 77.9 to 84.4
70.4 to 78.9
Manganese (Mn), % 0 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 1.0
0