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AISI 418 Stainless Steel vs. ASTM A182 Grade F11 Class 1

Both AISI 418 stainless steel and ASTM A182 grade F11 class 1 are iron alloys. They have 83% 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 AISI 418 stainless steel and the bottom bar is ASTM A182 grade F11 class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
23
Fatigue Strength, MPa 520
160
Poisson's Ratio 0.28
0.29
Reduction in Area, % 50
50
Shear Modulus, GPa 77
73
Shear Strength, MPa 680
300
Tensile Strength: Ultimate (UTS), MPa 1100
470
Tensile Strength: Yield (Proof), MPa 850
230

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 770
430
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1460
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 25
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.9
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.6
Embodied Energy, MJ/kg 41
21
Embodied Water, L/kg 110
52

Common Calculations

PREN (Pitting Resistance) 19
3.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
89
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 38
17
Strength to Weight: Bending, points 29
17
Thermal Diffusivity, mm2/s 6.7
11
Thermal Shock Resistance, points 40
14

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.050 to 0.15
Chromium (Cr), % 12 to 14
1.0 to 1.5
Iron (Fe), % 78.5 to 83.6
96 to 97.7
Manganese (Mn), % 0 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.44 to 0.65
Nickel (Ni), % 1.8 to 2.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.5
0.5 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0