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AISI 205 Stainless Steel vs. EN 1.4020 Stainless Steel

Both AISI 205 stainless steel and EN 1.4020 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is AISI 205 stainless steel and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 440
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 51
13 to 34
Fatigue Strength, MPa 410 to 640
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 560 to 850
510 to 680
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
770 to 1130
Tensile Strength: Yield (Proof), MPa 450 to 1100
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 880
890
Melting Completion (Liquidus), °C 1380
1390
Melting Onset (Solidus), °C 1340
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 18
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 7.6
7.6
Embodied Carbon, kg CO2/kg material 2.6
2.5
Embodied Energy, MJ/kg 37
37
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 23
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 430
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 3060
460 to 2290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 29 to 52
28 to 41
Strength to Weight: Bending, points 25 to 37
25 to 32
Thermal Shock Resistance, points 16 to 29
16 to 23

Alloy Composition

Carbon (C), % 0.12 to 0.25
0 to 0.15
Chromium (Cr), % 16.5 to 18.5
16.5 to 19
Iron (Fe), % 62.6 to 68.1
62.8 to 71.8
Manganese (Mn), % 14 to 15.5
11 to 14
Nickel (Ni), % 1.0 to 1.7
0.5 to 2.5
Nitrogen (N), % 0.32 to 0.4
0.2 to 0.45
Phosphorus (P), % 0 to 0.060
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030