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AISI 418 Stainless Steel vs. EN 1.4982 Stainless Steel

Both AISI 418 stainless steel and EN 1.4982 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, 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 1.4982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
28
Fatigue Strength, MPa 520
420
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 680
490
Tensile Strength: Ultimate (UTS), MPa 1100
750
Tensile Strength: Yield (Proof), MPa 850
570

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
540
Maximum Temperature: Mechanical, °C 770
860
Melting Completion (Liquidus), °C 1500
1430
Melting Onset (Solidus), °C 1460
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 25
13
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
22
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.9
4.9
Embodied Energy, MJ/kg 41
71
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 38
27
Strength to Weight: Bending, points 29
23
Thermal Diffusivity, mm2/s 6.7
3.4
Thermal Shock Resistance, points 40
17

Alloy Composition

Boron (B), % 0
0.0030 to 0.0090
Carbon (C), % 0.15 to 0.2
0.070 to 0.13
Chromium (Cr), % 12 to 14
14 to 16
Iron (Fe), % 78.5 to 83.6
61.8 to 69.7
Manganese (Mn), % 0 to 0.5
5.5 to 7.0
Molybdenum (Mo), % 0 to 0.5
0.8 to 1.2
Nickel (Ni), % 1.8 to 2.2
9.0 to 11
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.1
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
0
Vanadium (V), % 0
0.15 to 0.4