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N08801 Stainless Steel vs. S40977 Stainless Steel

Both N08801 stainless steel and S40977 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 58% of their average alloy composition in common. There are 32 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 N08801 stainless steel and the bottom bar is S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
21
Fatigue Strength, MPa 260
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 570
320
Tensile Strength: Ultimate (UTS), MPa 860
510
Tensile Strength: Yield (Proof), MPa 190
310

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 630
390
Maximum Temperature: Mechanical, °C 1090
720
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
6.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
1.9
Embodied Energy, MJ/kg 79
27
Embodied Water, L/kg 200
97

Common Calculations

PREN (Pitting Resistance) 21
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
92
Resilience: Unit (Modulus of Resilience), kJ/m3 92
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 30
18
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 3.3
6.7
Thermal Shock Resistance, points 20
18

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 19 to 22
10.5 to 12.5
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 39.5 to 50.3
83.9 to 89.2
Manganese (Mn), % 0 to 1.5
0 to 1.5
Nickel (Ni), % 30 to 34
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.75 to 1.5
0