# Quenched and Tempered 5160 Chromium Steel

Quenched and tempered SAE-AISI 5160 is SAE-AISI 5160 steel in the quenched and tempered condition. It has the highest strength compared to the other variants of SAE-AISI 5160 steel. The graph bars on the material properties cards below compare quenched and tempered SAE-AISI 5160 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

340

Elastic (Young's, Tensile) Modulus

190 *GPa* 27 *x 10 ^{6} psi*

Elongation at Break

14 *%*

Fatigue Strength

650 *MPa* 94 *x 10 ^{3} psi*

Poisson's Ratio

0.29

Shear Modulus

73 *GPa* 11 *x 10 ^{6} psi*

Shear Strength

700 *MPa* 100 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

1150 *MPa* 170 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

1010 *MPa* 150 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

250 *J/g*

Maximum Temperature: Mechanical

420 *°C* 780 *°F*

Melting Completion (Liquidus)

1450 *°C* 2650 *°F*

Melting Onset (Solidus)

1410 *°C* 2570 *°F*

Specific Heat Capacity

470 *J/kg-K* 0.11 *BTU/lb-°F*

Thermal Conductivity

43 *W/m-K* 25 *BTU/h-ft-°F*

Thermal Expansion

13 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

7.2 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

8.3 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

2.1 *% relative*

Density

7.8 *g/cm ^{3}* 490

*lb/ft*

^{3}Embodied Carbon

1.4 *kg CO _{2}/kg material*

Embodied Energy

19 *MJ/kg* 8.3 *x 10 ^{3} BTU/lb*

Embodied Water

50 *L/kg* 5.9 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

150 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

2700 *kJ/m ^{3}*

Stiffness to Weight: Axial

13 *points*

Stiffness to Weight: Bending

24 *points*

Strength to Weight: Axial

41 *points*

Strength to Weight: Bending

31 *points*

Thermal Diffusivity

12 *mm ^{2}/s*

Thermal Shock Resistance

34 *points*

## Alloy Composition

Fe | 97.1 to 97.8 | |

Mn | 0.75 to 1.0 | |

Cr | 0.7 to 0.9 | |

C | 0.56 to 0.61 | |

Si | 0.15 to 0.35 | |

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 A295: Standard Specification for High-Carbon Anti-Friction Bearing Steel

ASTM A322: Standard Specification for Steel Bars, Alloy, Standard Grades

Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993

ASM Specialty Handbook: Carbon and Alloy Steels, J. R. Davis (editor), 1996

Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005

Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015