MakeItFrom.com
Menu (ESC)

SAE-AISI D3 Steel vs. AISI 431 Stainless Steel

Both SAE-AISI D3 steel and AISI 431 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 (5, 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 431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.8 to 15
15 to 17
Fatigue Strength, MPa 310 to 940
430 to 610
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 470 to 1220
550 to 840
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
890 to 1380
Tensile Strength: Yield (Proof), MPa 480 to 1550
710 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1430
1510
Melting Onset (Solidus), °C 1390
1450
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 31
26
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
3.0

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
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
140 to 180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 74
32 to 50
Strength to Weight: Bending, points 24 to 47
27 to 36
Thermal Diffusivity, mm2/s 8.3
7.0
Thermal Shock Resistance, points 23 to 63
28 to 43

Alloy Composition

Carbon (C), % 2.0 to 2.4
0 to 0.2
Chromium (Cr), % 11 to 13.5
15 to 17
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
78.2 to 83.8
Manganese (Mn), % 0 to 0.6
0 to 1.0
Nickel (Ni), % 0 to 0.3
1.3 to 2.5
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

Comparable Variants