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AISI 431 Stainless Steel vs. ASTM A182 Grade F3VCb

Both AISI 431 stainless steel and ASTM A182 grade F3VCb are iron alloys. They have 85% of their average alloy composition in common. There are 32 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 AISI 431 stainless steel and the bottom bar is ASTM A182 grade F3VCb.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 17
21
Fatigue Strength, MPa 430 to 610
320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 550 to 840
420
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
670
Tensile Strength: Yield (Proof), MPa 710 to 1040
460

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 850
470
Melting Completion (Liquidus), °C 1510
1470
Melting Onset (Solidus), °C 1450
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
4.5
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
2.4
Embodied Energy, MJ/kg 31
33
Embodied Water, L/kg 120
64

Common Calculations

PREN (Pitting Resistance) 16
6.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 50
24
Strength to Weight: Bending, points 27 to 36
22
Thermal Diffusivity, mm2/s 7.0
11
Thermal Shock Resistance, points 28 to 43
19

Alloy Composition

Calcium (Ca), % 0
0.00050 to 0.015
Carbon (C), % 0 to 0.2
0.1 to 0.15
Chromium (Cr), % 15 to 17
2.7 to 3.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 78.2 to 83.8
93.8 to 95.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 1.3 to 2.5
0 to 0.25
Niobium (Nb), % 0
0.015 to 0.070
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.015
Vanadium (V), % 0
0.2 to 0.3