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EN 1.4618 Stainless Steel vs. EN 1.5502 Steel

Both EN 1.4618 stainless steel and EN 1.5502 steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 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 1.4618 stainless steel and the bottom bar is EN 1.5502 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
120 to 160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 51
12 to 20
Fatigue Strength, MPa 240 to 250
190 to 290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 480 to 500
280 to 330
Tensile Strength: Ultimate (UTS), MPa 680 to 700
400 to 1380
Tensile Strength: Yield (Proof), MPa 250 to 260
270 to 440

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 900
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
19
Embodied Water, L/kg 150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
41 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
200 to 520
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 25
14 to 49
Strength to Weight: Bending, points 22 to 23
15 to 35
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 15 to 16
12 to 40

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.1
0.15 to 0.2
Chromium (Cr), % 16.5 to 18.5
0 to 0.3
Copper (Cu), % 1.0 to 2.5
0 to 0.25
Iron (Fe), % 62.7 to 72.5
98 to 99.249
Manganese (Mn), % 5.5 to 9.5
0.6 to 0.9
Nickel (Ni), % 4.5 to 5.5
0
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.010
0 to 0.025

Comparable Variants