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EN 1.6554 Steel vs. EN 1.4646 Stainless Steel

Both EN 1.6554 steel and EN 1.4646 stainless steel are iron alloys. They have 67% 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 1.6554 steel and the bottom bar is EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 280
220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 21
34
Fatigue Strength, MPa 380 to 520
340
Impact Strength: V-Notched Charpy, J 30 to 45
90
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 780 to 930
750
Tensile Strength: Yield (Proof), MPa 550 to 790
430

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
910
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.8
Embodied Energy, MJ/kg 22
41
Embodied Water, L/kg 53
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
220
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1650
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 33
27
Strength to Weight: Bending, points 24 to 27
24
Thermal Shock Resistance, points 23 to 27
16

Alloy Composition

Carbon (C), % 0.23 to 0.28
0.020 to 0.1
Chromium (Cr), % 0.7 to 0.9
17 to 19
Copper (Cu), % 0 to 0.3
1.5 to 3.0
Iron (Fe), % 94.6 to 97.3
59 to 67.3
Manganese (Mn), % 0.6 to 0.9
10.5 to 12.5
Molybdenum (Mo), % 0.2 to 0.3
0 to 0.5
Nickel (Ni), % 1.0 to 2.0
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.050
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0 to 0.030
0