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S31277 Stainless Steel vs. N08330 Stainless Steel

Both S31277 stainless steel and N08330 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S31277 stainless steel and the bottom bar is N08330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
34
Fatigue Strength, MPa 380
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Shear Strength, MPa 600
360
Tensile Strength: Ultimate (UTS), MPa 860
550
Tensile Strength: Yield (Proof), MPa 410
230

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 430
420
Maximum Temperature: Mechanical, °C 1100
1050
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
32
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 6.7
5.4
Embodied Energy, MJ/kg 90
77
Embodied Water, L/kg 220
190

Common Calculations

PREN (Pitting Resistance) 51
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
150
Resilience: Unit (Modulus of Resilience), kJ/m3 410
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
19
Strength to Weight: Bending, points 25
18
Thermal Shock Resistance, points 19
13

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.080
Chromium (Cr), % 20.5 to 23
17 to 20
Copper (Cu), % 0.5 to 1.5
0 to 1.0
Iron (Fe), % 35.5 to 46.2
38.3 to 48.3
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0 to 3.0
0 to 2.0
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
34 to 37
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0.75 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Tin (Sn), % 0
0 to 0.025