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EN 1.4020 Stainless Steel vs. EN 1.4547 Stainless Steel

Both EN 1.4020 stainless steel and EN 1.4547 stainless steel are iron alloys. They have 74% 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 1.4020 stainless steel and the bottom bar is EN 1.4547 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 13 to 34
39
Fatigue Strength, MPa 340 to 540
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Shear Strength, MPa 510 to 680
510
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
750
Tensile Strength: Yield (Proof), MPa 430 to 950
340

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 890
1090
Melting Completion (Liquidus), °C 1390
1470
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
28
Density, g/cm3 7.6
8.0
Embodied Carbon, kg CO2/kg material 2.5
5.6
Embodied Energy, MJ/kg 37
75
Embodied Water, L/kg 150
190

Common Calculations

PREN (Pitting Resistance) 23
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
240
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 41
26
Strength to Weight: Bending, points 25 to 32
23
Thermal Shock Resistance, points 16 to 23
16

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.020
Chromium (Cr), % 16.5 to 19
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 62.8 to 71.8
51 to 56.3
Manganese (Mn), % 11 to 14
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0.5 to 2.5
17.5 to 18.5
Nitrogen (N), % 0.2 to 0.45
0.18 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010