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AISI 418 Stainless Steel vs. EN 1.4874 Stainless Steel

Both AISI 418 stainless steel and EN 1.4874 stainless steel are iron alloys. They have 49% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 418 stainless steel and the bottom bar is EN 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
140
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 17
6.7
Fatigue Strength, MPa 520
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 1100
480
Tensile Strength: Yield (Proof), MPa 850
360

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
560
Maximum Temperature: Mechanical, °C 770
1150
Melting Completion (Liquidus), °C 1500
1450
Melting Onset (Solidus), °C 1460
1400
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 25
13
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 15
70
Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 2.9
7.6
Embodied Energy, MJ/kg 41
110
Embodied Water, L/kg 110
290

Common Calculations

PREN (Pitting Resistance) 19
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
29
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 38
16
Strength to Weight: Bending, points 29
16
Thermal Diffusivity, mm2/s 6.7
3.3
Thermal Shock Resistance, points 40
11

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.35 to 0.65
Chromium (Cr), % 12 to 14
19 to 22
Cobalt (Co), % 0
18.5 to 22
Iron (Fe), % 78.5 to 83.6
23 to 38.9
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 3.0
Nickel (Ni), % 1.8 to 2.2
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 2.5 to 3.5
2.0 to 3.0