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S40977 Stainless Steel vs. N08700 Stainless Steel

Both S40977 stainless steel and N08700 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 61% 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 S40977 stainless steel and the bottom bar is N08700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
32
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 76
81
Shear Modulus, GPa 76
79
Shear Strength, MPa 320
410
Tensile Strength: Ultimate (UTS), MPa 510
620
Tensile Strength: Yield (Proof), MPa 310
270

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 720
1100
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
13
Thermal Expansion, µm/m-K 10
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.9
6.0
Embodied Energy, MJ/kg 27
82
Embodied Water, L/kg 97
200

Common Calculations

PREN (Pitting Resistance) 12
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
160
Resilience: Unit (Modulus of Resilience), kJ/m3 250
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 6.7
3.5
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 10.5 to 12.5
19 to 23
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 83.9 to 89.2
42 to 52.7
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
4.3 to 5.0
Nickel (Ni), % 0.3 to 1.0
24 to 26
Niobium (Nb), % 0
0 to 0.4
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030