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EN 1.4818 Stainless Steel vs. S39277 Stainless Steel

Both EN 1.4818 stainless steel and S39277 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 1.4818 stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
28
Fatigue Strength, MPa 280
480
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 480
600
Tensile Strength: Ultimate (UTS), MPa 700
930
Tensile Strength: Yield (Proof), MPa 330
660

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
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
16
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
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.1
4.2
Embodied Energy, MJ/kg 44
59
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 22
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
240
Resilience: Unit (Modulus of Resilience), kJ/m3 270
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
33
Strength to Weight: Bending, points 23
27
Thermal Diffusivity, mm2/s 4.5
4.2
Thermal Shock Resistance, points 15
26

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.025
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 20
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 65.6 to 71.8
56.8 to 64.3
Manganese (Mn), % 0 to 1.0
0 to 0.8
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 9.0 to 11
6.5 to 8.0
Nitrogen (N), % 0.12 to 0.2
0.23 to 0.33
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 1.0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2