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S31277 Stainless Steel vs. AISI 314 Stainless Steel

Both S31277 stainless steel and AISI 314 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 84% 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 AISI 314 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
45
Fatigue Strength, MPa 380
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
78
Shear Strength, MPa 600
410
Tensile Strength: Ultimate (UTS), MPa 860
590
Tensile Strength: Yield (Proof), MPa 410
230

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Corrosion, °C 430
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 460
490
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 36
25
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.7
4.3
Embodied Energy, MJ/kg 90
62
Embodied Water, L/kg 220
190

Common Calculations

PREN (Pitting Resistance) 51
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
210
Resilience: Unit (Modulus of Resilience), kJ/m3 410
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
21
Strength to Weight: Bending, points 25
20
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.25
Chromium (Cr), % 20.5 to 23
23 to 26
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 35.5 to 46.2
46.7 to 56.5
Manganese (Mn), % 0 to 3.0
0 to 2.0
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
19 to 22
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.5
1.5 to 3.0
Sulfur (S), % 0 to 0.010
0 to 0.030