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SAE-AISI D3 Steel vs. AISI 440C Stainless Steel

Both SAE-AISI D3 steel and AISI 440C stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D3 steel and the bottom bar is AISI 440C stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.8 to 15
2.0 to 14
Fatigue Strength, MPa 310 to 940
260 to 840
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 470 to 1220
430 to 1120
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
710 to 1970
Tensile Strength: Yield (Proof), MPa 480 to 1550
450 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1430
1480
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 31
22
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
9.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.2
2.2
Embodied Energy, MJ/kg 48
31
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 13
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
39 to 88
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 74
26 to 71
Strength to Weight: Bending, points 24 to 47
23 to 46
Thermal Diffusivity, mm2/s 8.3
6.0
Thermal Shock Resistance, points 23 to 63
26 to 71

Alloy Composition

Carbon (C), % 2.0 to 2.4
1.0 to 1.2
Chromium (Cr), % 11 to 13.5
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
78 to 83.1
Manganese (Mn), % 0 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0 to 0.3
0
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 0.015
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0

Comparable Variants