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S35000 Stainless Steel vs. AISI 418 Stainless Steel

Both S35000 stainless steel and AISI 418 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S35000 stainless steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 2.3 to 14
17
Fatigue Strength, MPa 380 to 520
520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 740 to 950
680
Tensile Strength: Ultimate (UTS), MPa 1300 to 1570
1100
Tensile Strength: Yield (Proof), MPa 660 to 1160
850

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 900
770
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1410
1460
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 14
15
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.2
2.9
Embodied Energy, MJ/kg 44
41
Embodied Water, L/kg 130
110

Common Calculations

PREN (Pitting Resistance) 28
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 28 to 170
170
Resilience: Unit (Modulus of Resilience), kJ/m3 1070 to 3360
1830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 46 to 56
38
Strength to Weight: Bending, points 34 to 38
29
Thermal Diffusivity, mm2/s 4.4
6.7
Thermal Shock Resistance, points 42 to 51
40

Alloy Composition

Carbon (C), % 0.070 to 0.11
0.15 to 0.2
Chromium (Cr), % 16 to 17
12 to 14
Iron (Fe), % 72.7 to 76.9
78.5 to 83.6
Manganese (Mn), % 0.5 to 1.3
0 to 0.5
Molybdenum (Mo), % 2.5 to 3.2
0 to 0.5
Nickel (Ni), % 4.0 to 5.0
1.8 to 2.2
Nitrogen (N), % 0.070 to 0.13
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
2.5 to 3.5