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EN 1.4849 Stainless Steel vs. AISI 418 Stainless Steel

Both EN 1.4849 stainless steel and AISI 418 stainless steel are iron alloys. They have 54% 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 EN 1.4849 stainless steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.5
17
Fatigue Strength, MPa 120
520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 480
1100
Tensile Strength: Yield (Proof), MPa 250
850

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Corrosion, °C 620
390
Maximum Temperature: Mechanical, °C 1020
770
Melting Completion (Liquidus), °C 1390
1500
Melting Onset (Solidus), °C 1340
1460
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
25
Thermal Expansion, µm/m-K 15
10

Otherwise Unclassified Properties

Base Metal Price, % relative 42
15
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 7.1
2.9
Embodied Energy, MJ/kg 100
41
Embodied Water, L/kg 200
110

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 18
170
Resilience: Unit (Modulus of Resilience), kJ/m3 160
1830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
38
Strength to Weight: Bending, points 17
29
Thermal Diffusivity, mm2/s 3.2
6.7
Thermal Shock Resistance, points 11
40

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.15 to 0.2
Chromium (Cr), % 18 to 21
12 to 14
Iron (Fe), % 32.6 to 43.5
78.5 to 83.6
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 36 to 39
1.8 to 2.2
Niobium (Nb), % 1.2 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
2.5 to 3.5