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EN 1.4841 Stainless Steel vs. AISI 304Cu Stainless Steel

Both EN 1.4841 stainless steel and AISI 304Cu stainless steel are iron alloys. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4841 stainless steel and the bottom bar is AISI 304Cu stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 32
45
Fatigue Strength, MPa 200
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 430
370
Tensile Strength: Ultimate (UTS), MPa 650
530
Tensile Strength: Yield (Proof), MPa 260
210

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1150
930
Melting Completion (Liquidus), °C 1380
1410
Melting Onset (Solidus), °C 1340
1370
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 25
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.3
3.0
Embodied Energy, MJ/kg 62
43
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 26
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
190
Resilience: Unit (Modulus of Resilience), kJ/m3 170
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
19
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 4.0
3.5
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 24 to 26
17 to 19
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 47.1 to 55.5
63.9 to 72
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 19 to 22
8.0 to 10
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 1.5 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030