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EN 1.4818 Stainless Steel vs. EN 1.4460 Stainless Steel

Both EN 1.4818 stainless steel and EN 1.4460 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a moderately high 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 1.4818 stainless steel and the bottom bar is EN 1.4460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
21
Fatigue Strength, MPa 280
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 480
470
Tensile Strength: Ultimate (UTS), MPa 700
750
Tensile Strength: Yield (Proof), MPa 330
510

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 1050
1100
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 16
18
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.4
Embodied Energy, MJ/kg 44
48
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 22
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
140
Resilience: Unit (Modulus of Resilience), kJ/m3 270
640
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
27
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 4.5
4.0
Thermal Shock Resistance, points 15
20

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.050
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 20
25 to 28
Iron (Fe), % 65.6 to 71.8
60.2 to 69.2
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
1.3 to 2.0
Nickel (Ni), % 9.0 to 11
4.5 to 6.5
Nitrogen (N), % 0.12 to 0.2
0.050 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 1.0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015