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S31266 Stainless Steel vs. ASTM A182 Grade FR

Both S31266 stainless steel and ASTM A182 grade FR are iron alloys. Both are furnished in the annealed condition. They have 44% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S31266 stainless steel and the bottom bar is ASTM A182 grade FR.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 40
28
Fatigue Strength, MPa 400
270
Poisson's Ratio 0.28
0.29
Reduction in Area, % 56
43
Shear Modulus, GPa 81
72
Shear Strength, MPa 590
320
Tensile Strength: Ultimate (UTS), MPa 860
490
Tensile Strength: Yield (Proof), MPa 470
360

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
3.3
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 6.5
1.6
Embodied Energy, MJ/kg 89
21
Embodied Water, L/kg 220
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
120
Resilience: Unit (Modulus of Resilience), kJ/m3 540
340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
17
Strength to Weight: Bending, points 24
17
Thermal Diffusivity, mm2/s 3.1
14
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.2
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 1.0 to 2.5
0.75 to 1.3
Iron (Fe), % 34.1 to 46
95.2 to 97.3
Manganese (Mn), % 2.0 to 4.0
0.4 to 1.1
Molybdenum (Mo), % 5.2 to 6.2
0
Nickel (Ni), % 21 to 24
1.6 to 2.2
Nitrogen (N), % 0.35 to 0.6
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0 to 0.050
Tungsten (W), % 1.5 to 2.5
0