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SAE-AISI D3 Steel vs. AISI 434 Stainless Steel

Both SAE-AISI D3 steel and AISI 434 stainless 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 (6, 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 434 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.8 to 15
24
Fatigue Strength, MPa 310 to 940
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 470 to 1220
330
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
520
Tensile Strength: Yield (Proof), MPa 480 to 1550
320

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1430
1510
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 31
25
Thermal Expansion, µm/m-K 12
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
9.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.2
2.4
Embodied Energy, MJ/kg 48
33
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 13
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 74
19
Strength to Weight: Bending, points 24 to 47
18
Thermal Diffusivity, mm2/s 8.3
6.7
Thermal Shock Resistance, points 23 to 63
19

Alloy Composition

Carbon (C), % 2.0 to 2.4
0 to 0.12
Chromium (Cr), % 11 to 13.5
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
78.6 to 83.3
Manganese (Mn), % 0 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
0.75 to 1.3
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 0.030
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0