Influence of Final Tempering Temperature on Side-Grooved Super-High Energy Charpy Specimens of 9310 Steel (Second Phase)

Published

May 3, 2023

Author(s)

Enrico Lucon

Abstract

During Fiscal Year (FY) 2022, a study was conducted at NIST to identify the optimal combination of heat treatment (specifically, final tempering temperature) and side-groove depth for super high energy reference Charpy specimens of 9310 steel. During FY23, a second phase of this investigation took place, wherein two additional values of the final tempering temperature were tested, while keeping the side-groove depth at the value previously established (0.9 mm/side, corresponding to 18 % of the original thickness). In consideration of the overall activities performed, final recommendations concerning the final tempering temperature and the side-groove depth are formulated for future NIST reference specimens of super-high energy level, manufactured from 9310 steel.

Citation

NIST Interagency/Internal Report (NISTIR) - 8465

Report Number

8465

NIST Pub Series

NIST Interagency/Internal Report (NISTIR)

Pub Type

NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.IR.8465

Local Download

Keywords

9310 steel, ASTM E23, final tempering temperature, Rockwell C hardness, side-groove depth, super-high energy Charpy specimens.

Citation

Lucon, E. (2023), Influence of Final Tempering Temperature on Side-Grooved Super-High Energy Charpy Specimens of 9310 Steel (Second Phase), NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.8465, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=936797 (Accessed October 14, 2025)