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Annealed N08020 Stainless Steel vs. Annealed S17700 Stainless Steel

Both annealed N08020 stainless steel and annealed S17700 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 62% of their average alloy composition in common. There are 34 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 annealed N08020 stainless steel and the bottom bar is annealed S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
23
Fatigue Strength, MPa 210
290
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 82
81
Shear Modulus, GPa 77
76
Shear Strength, MPa 410
750
Tensile Strength: Ultimate (UTS), MPa 610
1180
Tensile Strength: Yield (Proof), MPa 270
430

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 490
410
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 38
13
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.6
2.8
Embodied Energy, MJ/kg 92
40
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 28
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
210
Resilience: Unit (Modulus of Resilience), kJ/m3 180
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
42
Strength to Weight: Bending, points 20
32
Thermal Diffusivity, mm2/s 3.2
4.1
Thermal Shock Resistance, points 15
39

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0 to 0.070
0 to 0.090
Chromium (Cr), % 19 to 21
16 to 18
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 29.9 to 44
70.5 to 76.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 32 to 38
6.5 to 7.8
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030