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AISI 304Cu Stainless Steel vs. EN 1.4458 Stainless Steel

Both AISI 304Cu stainless steel and EN 1.4458 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 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 AISI 304Cu stainless steel and the bottom bar is EN 1.4458 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 45
34
Fatigue Strength, MPa 190
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 530
510
Tensile Strength: Yield (Proof), MPa 210
190

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 930
1100
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
16
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 16
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.0
5.4
Embodied Energy, MJ/kg 43
75
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 18
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
140
Resilience: Unit (Modulus of Resilience), kJ/m3 110
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 3.5
4.2
Thermal Shock Resistance, points 12
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 17 to 19
19 to 22
Copper (Cu), % 3.0 to 4.0
0 to 2.0
Iron (Fe), % 63.9 to 72
40.2 to 53
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 8.0 to 10
26 to 30
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025