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EN 1.4550 Stainless Steel vs. EN 1.4826 Stainless Steel

Both EN 1.4550 stainless steel and EN 1.4826 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4550 stainless steel and the bottom bar is EN 1.4826 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 42
9.1
Fatigue Strength, MPa 210
140
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 620
500
Tensile Strength: Yield (Proof), MPa 230
260

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 480
430
Maximum Temperature: Mechanical, °C 940
950
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.6
3.3
Embodied Energy, MJ/kg 51
47
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 18
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
39
Resilience: Unit (Modulus of Resilience), kJ/m3 140
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 4.0
3.7
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0 to 0.080
0.3 to 0.5
Chromium (Cr), % 17 to 19
21 to 23
Iron (Fe), % 64.9 to 74
60.4 to 68.7
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 9.0 to 12
9.0 to 11
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030