Quarter-Hard 316N Stainless Steel
Quarter-hard AISI 316N is AISI 316N stainless steel in the quarter-hard temper. The graph bars on the material properties cards below compare quarter-hard AISI 316N 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
300
Elastic (Young's, Tensile) Modulus
200 GPa 29 x 106 psi
Elongation at Break
14 %
Fatigue Strength
330 MPa 48 x 103 psi
Poisson's Ratio
0.28
Shear Modulus
78 GPa 11 x 106 psi
Shear Strength
590 MPa 86 x 103 psi
Tensile Strength: Ultimate (UTS)
980 MPa 140 x 103 psi
Tensile Strength: Yield (Proof)
580 MPa 84 x 103 psi
Thermal Properties
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
410 °C 770 °F
Maximum Temperature: Mechanical
940 °C 1730 °F
Melting Completion (Liquidus)
1440 °C 2630 °F
Melting Onset (Solidus)
1400 °C 2550 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
15 W/m-K 8.8 BTU/h-ft-°F
Thermal Expansion
16 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.7 % IACS
Otherwise Unclassified Properties
Base Metal Price
19 % relative
Density
7.9 g/cm3 490 lb/ft3
Embodied Carbon
3.9 kg CO2/kg material
Embodied Energy
53 MJ/kg 23 x 103 BTU/lb
Embodied Water
150 L/kg 18 gal/lb
Common Calculations
PREN (Pitting Resistance)
27
Resilience: Ultimate (Unit Rupture Work)
120 MJ/m3
Resilience: Unit (Modulus of Resilience)
830 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
34 points
Strength to Weight: Bending
28 points
Thermal Diffusivity
4.1 mm2/s
Thermal Shock Resistance
22 points
Alloy Composition
| Fe | 61.9 to 71.9 | |
| Cr | 16 to 18 | |
| Ni | 10 to 14 | |
| Mo | 2.0 to 3.0 | |
| Mn | 0 to 2.0 | |
| Si | 0 to 0.75 | |
| N | 0.1 to 0.16 | |
| 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 A666: Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar
ASTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
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
ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010