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SAE-AISI 1340 Steel vs. EN 1.4305 Stainless Steel

Both SAE-AISI 1340 steel and EN 1.4305 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1340 steel and the bottom bar is EN 1.4305 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 210
200 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 23
14 to 40
Fatigue Strength, MPa 220 to 390
190 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 340 to 440
420 to 550
Tensile Strength: Ultimate (UTS), MPa 540 to 730
610 to 900
Tensile Strength: Yield (Proof), MPa 300 to 620
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
930
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
15
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.0
Embodied Energy, MJ/kg 19
42
Embodied Water, L/kg 48
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 110
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 1040
120 to 830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19 to 26
22 to 32
Strength to Weight: Bending, points 19 to 23
20 to 27
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 17 to 23
14 to 20

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.1
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 97.2 to 97.9
66.4 to 74.9
Manganese (Mn), % 1.6 to 1.9
0 to 2.0
Nickel (Ni), % 0
8.0 to 10
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0.15 to 0.35