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N08330 Stainless Steel vs. S40977 Stainless Steel

Both N08330 stainless steel and S40977 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 57% of their average alloy composition in common.

For each property being compared, the top bar is N08330 stainless steel and the bottom bar is S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
21
Fatigue Strength, MPa 190
200
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 80
76
Shear Modulus, GPa 76
76
Shear Strength, MPa 360
320
Tensile Strength: Ultimate (UTS), MPa 550
510
Tensile Strength: Yield (Proof), MPa 230
310

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 1050
720
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1340
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 32
6.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
1.9
Embodied Energy, MJ/kg 77
27
Embodied Water, L/kg 190
97

Common Calculations

PREN (Pitting Resistance) 19
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
92
Resilience: Unit (Modulus of Resilience), kJ/m3 140
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 3.1
6.7
Thermal Shock Resistance, points 13
18

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 20
10.5 to 12.5
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 38.3 to 48.3
83.9 to 89.2
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 34 to 37
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.75 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tin (Sn), % 0 to 0.025
0