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Full-Hard 205 Stainless Steel

Full-hard AISI 205 is AISI 205 stainless steel in the full-hard temper. It has the highest strength and lowest ductility compared to the other variants of AISI 205 stainless steel. The graph bars on the material properties cards below compare full-hard AISI 205 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

440

Elastic (Young's, Tensile) Modulus

200 GPa 29 x 106 psi

Elongation at Break

11 %

Fatigue Strength

600 MPa 87 x 103 psi

Poisson's Ratio

0.28

Shear Modulus

77 GPa 11 x 106 psi

Shear Strength

850 MPa 120 x 103 psi

Tensile Strength: Ultimate (UTS)

1430 MPa 210 x 103 psi

Tensile Strength: Yield (Proof)

1100 MPa 160 x 103 psi

Thermal Properties

Latent Heat of Fusion

280 J/g

Maximum Temperature: Corrosion

410 °C 770 °F

Maximum Temperature: Mechanical

880 °C 1620 °F

Melting Completion (Liquidus)

1380 °C 2520 °F

Melting Onset (Solidus)

1340 °C 2440 °F

Specific Heat Capacity

480 J/kg-K 0.12 BTU/lb-°F

Thermal Expansion

18 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

11 % relative

Density

7.6 g/cm3 470 lb/ft3

Embodied Carbon

2.6 kg CO2/kg material

Embodied Energy

37 MJ/kg 16 x 103 BTU/lb

Embodied Water

150 L/kg 18 gal/lb

Common Calculations

PREN (Pitting Resistance)

23

Resilience: Ultimate (Unit Rupture Work)

150 MJ/m3

Resilience: Unit (Modulus of Resilience)

3060 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

26 points

Strength to Weight: Axial

52 points

Strength to Weight: Bending

37 points

Thermal Shock Resistance

29 points

Alloy Composition

Iron (Fe)Fe 62.6 to 68.1
Chromium (Cr)Cr 16.5 to 18.5
Manganese (Mn)Mn 14 to 15.5
Nickel (Ni)Ni 1.0 to 1.7
Silicon (Si)Si 0 to 1.0
Nitrogen (N)N 0.32 to 0.4
Carbon (C)C 0.12 to 0.25
Phosphorus (P)P 0 to 0.060
Sulfur (S)S 0 to 0.030

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

Followup Questions

Further Reading

ASTM A666: Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar

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

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