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EN 1.4020 Stainless Steel vs. EN 1.6771 Steel

Both EN 1.4020 stainless steel and EN 1.6771 steel are iron alloys. They have 71% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 1.6771 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
280 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 13 to 34
8.0 to 8.7
Fatigue Strength, MPa 340 to 540
440 to 680
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
930 to 1180
Tensile Strength: Yield (Proof), MPa 430 to 950
740 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
440
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 11
5.0
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.5
1.9
Embodied Energy, MJ/kg 37
25
Embodied Water, L/kg 150
58

Common Calculations

PREN (Pitting Resistance) 23
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
75 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
1460 to 3450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 41
33 to 41
Strength to Weight: Bending, points 25 to 32
27 to 31
Thermal Shock Resistance, points 16 to 23
27 to 35

Alloy Composition

Carbon (C), % 0 to 0.15
0.27 to 0.33
Chromium (Cr), % 16.5 to 19
0.8 to 1.2
Iron (Fe), % 62.8 to 71.8
92.2 to 95
Manganese (Mn), % 11 to 14
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.6
Nickel (Ni), % 0.5 to 2.5
3.0 to 4.0
Nitrogen (N), % 0.2 to 0.45
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.020

Comparable Variants