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EN 1.5521 Steel vs. EN 1.4618 Stainless Steel

Both EN 1.5521 steel and EN 1.4618 stainless 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 1.5521 steel and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
51
Fatigue Strength, MPa 210 to 310
240 to 250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 310 to 360
480 to 500
Tensile Strength: Ultimate (UTS), MPa 430 to 1390
680 to 700
Tensile Strength: Yield (Proof), MPa 300 to 490
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 630
160 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 49
24 to 25
Strength to Weight: Bending, points 16 to 35
22 to 23
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 13 to 41
15 to 16

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.16 to 0.2
0 to 0.1
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.25
1.0 to 2.5
Iron (Fe), % 98 to 98.9
62.7 to 72.5
Manganese (Mn), % 0.9 to 1.2
5.5 to 9.5
Nickel (Ni), % 0
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.025
0 to 0.070
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.010

Comparable Variants