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S31277 Stainless Steel vs. AISI 334 Stainless Steel

Both S31277 stainless steel and AISI 334 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 81% of their average alloy composition in common. There are 28 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 S31277 stainless steel and the bottom bar is AISI 334 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
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 600
360
Tensile Strength: Ultimate (UTS), MPa 860
540
Tensile Strength: Yield (Proof), MPa 410
190

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 430
490
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
22
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.7
4.1
Embodied Energy, MJ/kg 90
59
Embodied Water, L/kg 220
170

Common Calculations

PREN (Pitting Resistance) 51
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
140
Resilience: Unit (Modulus of Resilience), kJ/m3 410
96
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
19
Strength to Weight: Bending, points 25
19
Thermal Shock Resistance, points 19
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.020
0 to 0.080
Chromium (Cr), % 20.5 to 23
18 to 20
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 35.5 to 46.2
55.7 to 62.7
Manganese (Mn), % 0 to 3.0
0 to 1.0
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
19 to 21
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 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6