Quenched and Tempered 6150 Chromium-Vanadium Steel
Quenched and tempered SAE-AISI 6150 is SAE-AISI 6150 steel in the quenched and tempered condition. It has the highest strength and lowest ductility compared to the other variants of SAE-AISI 6150 steel.
The graph bars on the material properties cards below compare quenched and tempered SAE-AISI 6150 to: SAE-AISI wrought steels (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
350
Elastic (Young's, Tensile) Modulus
190 GPa 27 x 106 psi
Elongation at Break
15 %
Fatigue Strength
750 MPa 110 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
73 GPa 11 x 106 psi
Shear Strength
730 MPa 110 x 103 psi
Tensile Strength: Ultimate (UTS)
1200 MPa 170 x 103 psi
Tensile Strength: Yield (Proof)
1160 MPa 170 x 103 psi
Thermal Properties
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
420 °C 790 °F
Melting Completion (Liquidus)
1460 °C 2650 °F
Melting Onset (Solidus)
1410 °C 2580 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
46 W/m-K 27 BTU/h-ft-°F
Thermal Expansion
12 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
7.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.4 % IACS
Otherwise Unclassified Properties
Base Metal Price
2.3 % relative
Density
7.8 g/cm3 490 lb/ft3
Embodied Carbon
2.0 kg CO2/kg material
Embodied Energy
28 MJ/kg 12 x 103 BTU/lb
Embodied Water
51 L/kg 6.1 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
180 MJ/m3
Resilience: Unit (Modulus of Resilience)
3590 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
43 points
Strength to Weight: Bending
32 points
Thermal Diffusivity
13 mm2/s
Thermal Shock Resistance
38 points
Alloy Composition
| Fe | 96.7 to 97.7 | |
| Cr | 0.8 to 1.1 | |
| Mn | 0.7 to 0.9 | |
| C | 0.48 to 0.53 | |
| Si | 0.15 to 0.35 | |
| V | 0.15 to 0.3 | |
| S | 0 to 0.040 | |
| P | 0 to 0.035 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM A322: Standard Specification for Steel Bars, Alloy, Standard Grades
ASM Specialty Handbook: Carbon and Alloy Steels, J. R. Davis (editor), 1996
Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015
Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015