MakeItFrom.com
Menu (ESC)

ASTM A182 Grade F3V (K31830) Steel

ASTM A182 grade F3V is an alloy steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. F3V is the ASTM designation for this material. K31830 is the UNS number.

It has a moderately low thermal conductivity among wrought alloy steels in the same category. In addition, it has a fairly high embodied energy and a moderately low ductility.

The graph bars on the material properties cards below compare ASTM A182 grade F3V to: wrought alloy steels in the same category (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness

210

Elastic (Young's, Tensile) Modulus

190 GPa 28 x 106 psi

Elongation at Break

20 %

Fatigue Strength

330 MPa 47 x 103 psi

Poisson's Ratio

0.29

Reduction in Area

51 %

Shear Modulus

74 GPa 11 x 106 psi

Shear Strength

410 MPa 59 x 103 psi

Tensile Strength: Ultimate (UTS)

660 MPa 95 x 103 psi

Tensile Strength: Yield (Proof)

470 MPa 69 x 103 psi

Thermal Properties

Latent Heat of Fusion

250 J/g

Maximum Temperature: Mechanical

470 °C 890 °F

Melting Completion (Liquidus)

1470 °C 2680 °F

Melting Onset (Solidus)

1430 °C 2600 °F

Specific Heat Capacity

470 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

39 W/m-K 22 BTU/h-ft-°F

Thermal Expansion

13 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

7.6 % IACS

Electrical Conductivity: Equal Weight (Specific)

8.8 % IACS

Otherwise Unclassified Properties

Base Metal Price

4.2 % relative

Density

7.9 g/cm3 490 lb/ft3

Embodied Carbon

2.3 kg CO2/kg material

Embodied Energy

33 MJ/kg 14 x 103 BTU/lb

Embodied Water

63 L/kg 7.5 gal/lb

Common Calculations

PREN (Pitting Resistance)

6.3

Resilience: Ultimate (Unit Rupture Work)

120 MJ/m3

Resilience: Unit (Modulus of Resilience)

590 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

23 points

Strength to Weight: Bending

21 points

Thermal Diffusivity

10 mm2/s

Thermal Shock Resistance

19 points

Alloy Composition

Among alloy steels, the composition of ASTM A182 grade F3V is notable for including boron (B) and titanium (Ti). Boron is used to improve hardenability. It has a substantial effect when added in even tiny amounts. Titanium is used to broadly improve mechanical properties.

Iron (Fe) 94.4 to 95.7
Chromium (Cr) 2.8 to 3.2
Molybdenum (Mo) 0.9 to 1.1
Manganese (Mn) 0.3 to 0.6
Vanadium (V) 0.2 to 0.3
Carbon (C) 0.050 to 0.18
Silicon (Si) 0 to 0.1
Titanium (Ti) 0.015 to 0.035
Phosphorus (P) 0 to 0.020
Sulfur (S) 0 to 0.020
Boron (B) 0.0010 to 0.0030

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service