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AISI 304Cu Stainless Steel vs. SAE-AISI 1018 Steel

Both AISI 304Cu stainless steel and SAE-AISI 1018 steel are iron alloys. They have 69% 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 AISI 304Cu stainless steel and the bottom bar is SAE-AISI 1018 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 45
17 to 27
Fatigue Strength, MPa 190
180 to 270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 370
280 to 300
Tensile Strength: Ultimate (UTS), MPa 530
430 to 480
Tensile Strength: Yield (Proof), MPa 210
240 to 400

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 930
400
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
52
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 16
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 43
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
75 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 110
150 to 430
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
15 to 17
Strength to Weight: Bending, points 19
16 to 17
Thermal Diffusivity, mm2/s 3.5
14
Thermal Shock Resistance, points 12
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.030
0.15 to 0.2
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 63.9 to 72
98.8 to 99.25
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Nickel (Ni), % 8.0 to 10
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050