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EN 1.4410 Stainless Steel vs. EN 1.4818 Stainless Steel

Both EN 1.4410 stainless steel and EN 1.4818 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 90% 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 1.4410 stainless steel and the bottom bar is EN 1.4818 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
180
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 24
40
Fatigue Strength, MPa 410
280
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 540
480
Tensile Strength: Ultimate (UTS), MPa 850
700
Tensile Strength: Yield (Proof), MPa 600
330

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
1050
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
16
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.0
3.1
Embodied Energy, MJ/kg 56
44
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 42
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
230
Resilience: Unit (Modulus of Resilience), kJ/m3 880
270
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
25
Strength to Weight: Bending, points 26
23
Thermal Diffusivity, mm2/s 4.0
4.5
Thermal Shock Resistance, points 23
15

Alloy Composition

Carbon (C), % 0 to 0.030
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 24 to 26
18 to 20
Iron (Fe), % 58.1 to 66.8
65.6 to 71.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.5
0
Nickel (Ni), % 6.0 to 8.0
9.0 to 11
Nitrogen (N), % 0.24 to 0.35
0.12 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.015