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Cold Finished SAE-AISI 1340 vs. Cold Finished AISI 316

Both cold finished SAE-AISI 1340 and cold finished AISI 316 are iron alloys. Both are furnished in the cold worked (strain hardened) condition. They have 68% of their average alloy composition in common. There are 31 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 cold finished SAE-AISI 1340 and the bottom bar is cold finished AISI 316.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
37
Fatigue Strength, MPa 390
340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 440
350
Tensile Strength: Ultimate (UTS), MPa 730
520
Tensile Strength: Yield (Proof), MPa 620
410

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
590
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 48
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1040
430
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 23
11

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.080
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 97.2 to 97.9
62 to 72
Manganese (Mn), % 1.6 to 1.9
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
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 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030