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EN 1.4659 Stainless Steel vs. SAE-AISI 1040 Steel

Both EN 1.4659 stainless steel and SAE-AISI 1040 steel are iron alloys. They have 41% of their average alloy composition in common. There are 31 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 EN 1.4659 stainless steel and the bottom bar is SAE-AISI 1040 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 49
13 to 20
Fatigue Strength, MPa 460
220 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
73
Shear Strength, MPa 640
350 to 390
Tensile Strength: Ultimate (UTS), MPa 900
570 to 640
Tensile Strength: Yield (Proof), MPa 480
320 to 530

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.8
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.5
1.4
Embodied Energy, MJ/kg 89
18
Embodied Water, L/kg 220
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 370
79 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 550
270 to 760
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 31
20 to 23
Strength to Weight: Bending, points 25
19 to 21
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 19
18 to 20

Alloy Composition

Carbon (C), % 0 to 0.020
0.37 to 0.44
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 35.7 to 45.7
98.6 to 99.03
Manganese (Mn), % 2.0 to 4.0
0.6 to 0.9
Molybdenum (Mo), % 5.5 to 6.5
0
Nickel (Ni), % 21 to 23
0
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.7
0
Sulfur (S), % 0 to 0.010
0 to 0.050
Tungsten (W), % 1.5 to 2.5
0