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EN 1.4659 Stainless Steel vs. SAE-AISI 1340 Steel

Both EN 1.4659 stainless steel and SAE-AISI 1340 steel are iron alloys. They have 43% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1340 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 49
11 to 23
Fatigue Strength, MPa 460
220 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
72
Shear Strength, MPa 640
340 to 440
Tensile Strength: Ultimate (UTS), MPa 900
540 to 730
Tensile Strength: Yield (Proof), MPa 480
300 to 620

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1430
1410
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
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.9
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.5
1.4
Embodied Energy, MJ/kg 89
19
Embodied Water, L/kg 220
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 370
78 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 550
240 to 1040
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 31
19 to 26
Strength to Weight: Bending, points 25
19 to 23
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 19
17 to 23

Alloy Composition

Carbon (C), % 0 to 0.020
0.38 to 0.43
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 35.7 to 45.7
97.2 to 97.9
Manganese (Mn), % 2.0 to 4.0
1.6 to 1.9
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 0.035
Silicon (Si), % 0 to 0.7
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040
Tungsten (W), % 1.5 to 2.5
0