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SAE-AISI D3 Steel vs. EN 1.4640 Stainless Steel

Both SAE-AISI D3 steel and EN 1.4640 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D3 steel and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.8 to 15
51
Fatigue Strength, MPa 310 to 940
230 to 250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 470 to 1220
440 to 460
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
620 to 650
Tensile Strength: Yield (Proof), MPa 480 to 1550
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 31
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
14
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 48
40
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 13
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
250 to 260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 74
22 to 23
Strength to Weight: Bending, points 24 to 47
21
Thermal Diffusivity, mm2/s 8.3
4.0
Thermal Shock Resistance, points 23 to 63
14 to 15

Alloy Composition

Carbon (C), % 2.0 to 2.4
0.030 to 0.080
Chromium (Cr), % 11 to 13.5
18 to 19
Copper (Cu), % 0 to 0.25
1.3 to 2.0
Iron (Fe), % 80.3 to 87
67.4 to 73.6
Manganese (Mn), % 0 to 0.6
1.5 to 4.0
Nickel (Ni), % 0 to 0.3
5.5 to 6.9
Nitrogen (N), % 0
0.030 to 0.11
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0