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EN 1.4020 Stainless Steel vs. AISI 304Cu Stainless Steel

Both EN 1.4020 stainless steel and AISI 304Cu stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4020 stainless steel and the bottom bar is AISI 304Cu stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 13 to 34
45
Fatigue Strength, MPa 340 to 540
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 510 to 680
370
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
530
Tensile Strength: Yield (Proof), MPa 430 to 950
210

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 890
930
Melting Completion (Liquidus), °C 1390
1410
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
16
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.5
3.0
Embodied Energy, MJ/kg 37
43
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 23
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
190
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
19
Strength to Weight: Bending, points 25 to 32
19
Thermal Shock Resistance, points 16 to 23
12

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 16.5 to 19
17 to 19
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 62.8 to 71.8
63.9 to 72
Manganese (Mn), % 11 to 14
0 to 2.0
Nickel (Ni), % 0.5 to 2.5
8.0 to 10
Nitrogen (N), % 0.2 to 0.45
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030