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EN 1.4421 Stainless Steel vs. EN 1.5502 Steel

Both EN 1.4421 stainless steel and EN 1.5502 steel are iron alloys. They have 78% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4421 stainless steel and the bottom bar is EN 1.5502 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
12 to 20
Fatigue Strength, MPa 380 to 520
190 to 290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 880 to 1100
400 to 1380
Tensile Strength: Yield (Proof), MPa 620 to 950
270 to 440

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 36
19
Embodied Water, L/kg 130
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
41 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 960 to 2270
200 to 520
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 39
14 to 49
Strength to Weight: Bending, points 26 to 30
15 to 35
Thermal Diffusivity, mm2/s 4.4
14
Thermal Shock Resistance, points 31 to 39
12 to 40

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.060
0.15 to 0.2
Chromium (Cr), % 15.5 to 17.5
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 74.4 to 80.5
98 to 99.249
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.7
0
Nickel (Ni), % 4.0 to 5.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.3
Sulfur (S), % 0 to 0.020
0 to 0.025

Comparable Variants