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AISI 304Cu Stainless Steel vs. S44635 Stainless Steel

Both AISI 304Cu stainless steel and S44635 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 304Cu stainless steel and the bottom bar is S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
240
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 45
23
Fatigue Strength, MPa 190
390
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
81
Shear Strength, MPa 370
450
Tensile Strength: Ultimate (UTS), MPa 530
710
Tensile Strength: Yield (Proof), MPa 210
580

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
610
Maximum Temperature: Mechanical, °C 930
1100
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
16
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
4.4
Embodied Energy, MJ/kg 43
62
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 18
39
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
150
Resilience: Unit (Modulus of Resilience), kJ/m3 110
810
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 3.5
4.4
Thermal Shock Resistance, points 12
23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.025
Chromium (Cr), % 17 to 19
24.5 to 26
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 63.9 to 72
61.5 to 68.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 8.0 to 10
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8