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EN 1.4539 Stainless Steel vs. EN 1.4020 Stainless Steel

Both EN 1.4539 stainless steel and EN 1.4020 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4539 stainless steel and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
13 to 34
Fatigue Strength, MPa 220
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 430
510 to 680
Tensile Strength: Ultimate (UTS), MPa 630
770 to 1130
Tensile Strength: Yield (Proof), MPa 260
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 31
11
Density, g/cm3 8.1
7.6
Embodied Carbon, kg CO2/kg material 5.7
2.5
Embodied Energy, MJ/kg 78
37
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 36
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 160
460 to 2290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
28 to 41
Strength to Weight: Bending, points 20
25 to 32
Thermal Shock Resistance, points 14
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.15
Chromium (Cr), % 19 to 21
16.5 to 19
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 43.1 to 51.8
62.8 to 71.8
Manganese (Mn), % 0 to 2.0
11 to 14
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 24 to 26
0.5 to 2.5
Nitrogen (N), % 0 to 0.15
0.2 to 0.45
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030