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EN 1.5521 Steel vs. AISI 420 Stainless Steel

Both EN 1.5521 steel and AISI 420 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 31 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 1.5521 steel and the bottom bar is AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
8.0 to 15
Fatigue Strength, MPa 210 to 310
220 to 670
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 310 to 360
420 to 1010
Tensile Strength: Ultimate (UTS), MPa 430 to 1390
690 to 1720
Tensile Strength: Yield (Proof), MPa 300 to 490
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
620
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
27
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
7.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 19
28
Embodied Water, L/kg 47
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 630
380 to 4410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 49
25 to 62
Strength to Weight: Bending, points 16 to 35
22 to 41
Thermal Diffusivity, mm2/s 14
7.3
Thermal Shock Resistance, points 13 to 41
25 to 62

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.16 to 0.2
0.15 to 0.4
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98 to 98.9
82.3 to 87.9
Manganese (Mn), % 0.9 to 1.2
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.75
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030

Comparable Variants