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EN 1.4818 Stainless Steel vs. EN 1.3960 Stainless Steel

Both EN 1.4818 stainless steel and EN 1.3960 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a moderately high 93% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.3960 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
34
Fatigue Strength, MPa 280
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 700
590
Tensile Strength: Yield (Proof), MPa 330
270

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1050
970
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 16
21
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.1
4.1
Embodied Energy, MJ/kg 44
57
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 22
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
170
Resilience: Unit (Modulus of Resilience), kJ/m3 270
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 4.5
3.9
Thermal Shock Resistance, points 15
17

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.030
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 20
16.5 to 18.5
Iron (Fe), % 65.6 to 71.8
60.2 to 67.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 9.0 to 11
13 to 15
Nitrogen (N), % 0.12 to 0.2
0.15 to 0.25
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 0.020