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EN 1.4818 Stainless Steel vs. EN 1.4020 Stainless Steel

Both EN 1.4818 stainless steel and EN 1.4020 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 1.4818 stainless steel and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
13 to 34
Fatigue Strength, MPa 280
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 480
510 to 680
Tensile Strength: Ultimate (UTS), MPa 700
770 to 1130
Tensile Strength: Yield (Proof), MPa 330
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1050
890
Melting Completion (Liquidus), °C 1410
1390
Melting Onset (Solidus), °C 1370
1350
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 16
11
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 3.1
2.5
Embodied Energy, MJ/kg 44
37
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 22
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 270
460 to 2290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
28 to 41
Strength to Weight: Bending, points 23
25 to 32
Thermal Shock Resistance, points 15
16 to 23

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.15
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 20
16.5 to 19
Iron (Fe), % 65.6 to 71.8
62.8 to 71.8
Manganese (Mn), % 0 to 1.0
11 to 14
Nickel (Ni), % 9.0 to 11
0.5 to 2.5
Nitrogen (N), % 0.12 to 0.2
0.2 to 0.45
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 1.0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030