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EN 1.4584 Stainless Steel vs. EN 1.4618 Stainless Steel

Both EN 1.4584 stainless steel and EN 1.4618 stainless steel are iron alloys. They have 73% 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 EN 1.4584 stainless steel and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
51
Fatigue Strength, MPa 170
240 to 250
Impact Strength: V-Notched Charpy, J 67
90 to 91
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 500
680 to 700
Tensile Strength: Yield (Proof), MPa 210
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
13
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.7
2.7
Embodied Energy, MJ/kg 78
39
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 36
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 110
160 to 170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
24 to 25
Strength to Weight: Bending, points 17
22 to 23
Thermal Diffusivity, mm2/s 4.5
4.0
Thermal Shock Resistance, points 12
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.1
Chromium (Cr), % 19 to 21
16.5 to 18.5
Copper (Cu), % 1.0 to 3.0
1.0 to 2.5
Iron (Fe), % 41.7 to 52
62.7 to 72.5
Manganese (Mn), % 0 to 2.0
5.5 to 9.5
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 24 to 26
4.5 to 5.5
Nitrogen (N), % 0 to 0.2
0 to 0.15
Phosphorus (P), % 0 to 0.035
0 to 0.070
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.010