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ASTM A182 Grade F6b vs. S31254 Stainless Steel

Both ASTM A182 grade F6b and S31254 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 70% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade F6b and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
40
Fatigue Strength, MPa 440
290
Poisson's Ratio 0.28
0.28
Reduction in Area, % 51
56
Shear Modulus, GPa 76
80
Shear Strength, MPa 530
490
Tensile Strength: Ultimate (UTS), MPa 850
720
Tensile Strength: Yield (Proof), MPa 710
330

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 750
1090
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 25
14
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
28
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.2
5.5
Embodied Energy, MJ/kg 30
74
Embodied Water, L/kg 100
190

Common Calculations

PREN (Pitting Resistance) 14
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
240
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
25
Strength to Weight: Bending, points 26
22
Thermal Diffusivity, mm2/s 6.7
3.8
Thermal Shock Resistance, points 31
15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.020
Chromium (Cr), % 11.5 to 13.5
19.5 to 20.5
Copper (Cu), % 0 to 0.5
0.5 to 1.0
Iron (Fe), % 81.2 to 87.1
51.4 to 56.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.4 to 0.6
6.0 to 6.5
Nickel (Ni), % 1.0 to 2.0
17.5 to 18.5
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.020
0 to 0.010