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S17400 Stainless Steel vs. N08020 Stainless Steel

Both S17400 stainless steel and N08020 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 32 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 S17400 stainless steel and the bottom bar is N08020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
15 to 34
Fatigue Strength, MPa 380 to 670
210 to 240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 570 to 830
380 to 410
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
610 to 620
Tensile Strength: Yield (Proof), MPa 580 to 1250
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 450
490
Maximum Temperature: Mechanical, °C 850
1100
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 14
38
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.7
6.6
Embodied Energy, MJ/kg 39
92
Embodied Water, L/kg 130
220

Common Calculations

PREN (Pitting Resistance) 16
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
83 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
180 to 440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 49
21
Strength to Weight: Bending, points 27 to 35
20
Thermal Diffusivity, mm2/s 4.5
3.2
Thermal Shock Resistance, points 30 to 46
15

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.070
Chromium (Cr), % 15 to 17
19 to 21
Copper (Cu), % 3.0 to 5.0
3.0 to 4.0
Iron (Fe), % 70.4 to 78.9
29.9 to 44
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 3.0 to 5.0
32 to 38
Niobium (Nb), % 0.15 to 0.45
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.035