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EN 1.4016 Stainless Steel vs. EN 1.4550 Stainless Steel

Both EN 1.4016 stainless steel and EN 1.4550 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4016 stainless steel and the bottom bar is EN 1.4550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 22
42
Fatigue Strength, MPa 190
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 330
430
Tensile Strength: Ultimate (UTS), MPa 520
620
Tensile Strength: Yield (Proof), MPa 290
230

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
480
Maximum Temperature: Mechanical, °C 870
940
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.1
3.6
Embodied Energy, MJ/kg 29
51
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 17
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
210
Resilience: Unit (Modulus of Resilience), kJ/m3 210
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 16 to 18
17 to 19
Iron (Fe), % 79.9 to 84
64.9 to 74
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015