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AISI 304Cu Stainless Steel vs. EN 1.6956 Steel

Both AISI 304Cu stainless steel and EN 1.6956 steel are iron alloys. They have 73% 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 1.6956 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
370
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 45
9.6
Fatigue Strength, MPa 190
680
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 370
730
Tensile Strength: Ultimate (UTS), MPa 530
1230
Tensile Strength: Yield (Proof), MPa 210
1120

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 930
440
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
46
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 16
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.2
Embodied Energy, MJ/kg 43
31
Embodied Water, L/kg 150
60

Common Calculations

PREN (Pitting Resistance) 18
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 110
3320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
43
Strength to Weight: Bending, points 19
32
Thermal Diffusivity, mm2/s 3.5
12
Thermal Shock Resistance, points 12
36

Alloy Composition

Carbon (C), % 0 to 0.030
0.28 to 0.38
Chromium (Cr), % 17 to 19
1.0 to 1.7
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 63.9 to 72
92.4 to 95.3
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0
0.3 to 0.6
Nickel (Ni), % 8.0 to 10
2.9 to 3.8
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Vanadium (V), % 0
0.080 to 0.25