# Cold Finished 310S Stainless Steel

Cold finished AISI 310S is AISI 310S stainless steel in the cold worked (strain hardened) condition. The graph bars on the material properties cards below compare cold finished AISI 310S to: wrought austenitic stainless 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

210

Elastic (Young's, Tensile) Modulus

200 *GPa* 29 *x 10 ^{6} psi*

Elongation at Break

34 *%*

Fatigue Strength

280 *MPa* 41 *x 10 ^{3} psi*

Poisson's Ratio

0.27

Shear Modulus

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

Shear Strength

470 *MPa* 68 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

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

Tensile Strength: Yield (Proof)

350 *MPa* 51 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

310 *J/g*

Maximum Temperature: Corrosion

450 *°C* 830 *°F*

Maximum Temperature: Mechanical

1100 *°C* 2010 *°F*

Melting Completion (Liquidus)

1450 *°C* 2640 *°F*

Melting Onset (Solidus)

1400 *°C* 2550 *°F*

Specific Heat Capacity

480 *J/kg-K* 0.11 *BTU/lb-°F*

Thermal Conductivity

16 *W/m-K* 9.0 *BTU/h-ft-°F*

Thermal Expansion

16 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

2.0 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

2.3 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

25 *% relative*

Density

7.9 *g/cm ^{3}* 490

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

61 *MJ/kg* 26 *x 10 ^{3} BTU/lb*

Embodied Water

190 *L/kg* 23 *gal/lb*

## Common Calculations

PREN (Pitting Resistance)

25

Resilience: Ultimate (Unit Rupture Work)

200 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

310 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

25 *points*

Strength to Weight: Axial

25 *points*

Strength to Weight: Bending

22 *points*

Thermal Diffusivity

4.1 *mm ^{2}/s*

Thermal Shock Resistance

16 *points*

## Alloy Composition

Fe | 48.3 to 57 | |

Cr | 24 to 26 | |

Ni | 19 to 22 | |

Mn | 0 to 2.0 | |

Si | 0 to 1.5 | |

C | 0 to 0.080 | |

P | 0 to 0.045 | |

S | 0 to 0.030 |

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

## Followup Questions

## Further Reading

ASTM A276: Standard Specification for Stainless Steel Bars and Shapes

ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Corrosion of Austenitic Stainless Steels: Mechanism, Mitigation and Monitoring, H. S. Khatak and B. Raj (editors), 2002

Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011

Austenitic Stainless Steels: Microstructure and Mechanical Properties, P. Marshall, 1984

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

ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994

Advances in Stainless Steels, Baldev Raj et al. (editors), 2010

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015