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SAE-AISI 1345 Steel vs. Nickel 690

SAE-AISI 1345 steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys.

For each property being compared, the top bar is SAE-AISI 1345 steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
90
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 23
3.4 to 34
Fatigue Strength, MPa 230 to 390
180 to 300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
79
Shear Strength, MPa 370 to 440
420 to 570
Tensile Strength: Ultimate (UTS), MPa 590 to 730
640 to 990
Tensile Strength: Yield (Proof), MPa 330 to 620
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1010
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
14
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.4
8.2
Embodied Energy, MJ/kg 19
120
Embodied Water, L/kg 48
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 120
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 1040
160 to 1440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 26
21 to 33
Strength to Weight: Bending, points 20 to 23
20 to 27
Thermal Diffusivity, mm2/s 14
3.5
Thermal Shock Resistance, points 19 to 23
16 to 25

Alloy Composition

Carbon (C), % 0.43 to 0.48
0 to 0.050
Chromium (Cr), % 0
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 97.2 to 97.8
7.0 to 11
Manganese (Mn), % 1.6 to 1.9
0 to 0.5
Nickel (Ni), % 0
58 to 66
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015

Comparable Variants