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

Both AISI 440B stainless steel and SAE-AISI D3 steel are iron alloys. They have a moderately high 94% 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 AISI 440B stainless steel and the bottom bar is SAE-AISI D3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 3.0 to 18
9.8 to 15
Fatigue Strength, MPa 260 to 850
310 to 940
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
74
Shear Strength, MPa 460 to 1110
470 to 1220
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
770 to 2050
Tensile Strength: Yield (Proof), MPa 430 to 1860
480 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
31
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.5

Otherwise Unclassified Properties

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

Common Calculations

PREN (Pitting Resistance) 18
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 57 to 110
97 to 180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 70
28 to 74
Strength to Weight: Bending, points 24 to 45
24 to 47
Thermal Diffusivity, mm2/s 6.1
8.3
Thermal Shock Resistance, points 27 to 70
23 to 63

Alloy Composition

Carbon (C), % 0.75 to 1.0
2.0 to 2.4
Chromium (Cr), % 16 to 18
11 to 13.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 78.2 to 83.3
80.3 to 87
Manganese (Mn), % 0 to 1.0
0 to 0.6
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
0 to 1.0
Vanadium (V), % 0
0 to 1.0

Comparable Variants