VALUE HEAT TREATMENT Pty. Ltd.

19 Holloway Drive

Bayswater

Victoria - 3153

Australia.

T: +61 3 9038 8477

M: 0407058012

F: +61 3 9739 8448

E: info@valueheattreatment.com.au

Copyright © Value Heat Treatment Pty. Ltd. All Rights Reserved.

VHT VHT VHT

GAS CARBURISE  *  CARBONITRIDE  *  HARDEN & TEMPER  *  STRESS RELIEVE  *  SHOT PEEN  *  CONSULTING  *

BIG ENOUGH TO GIVE YOU CONFIDENCE AND SMALL ENOUGH TO GIVE YOU THE SERVICE”

Text Box: PROCESSES
Text Box: It is undertaken to remove residual stresses generated by processes such as machining, forming and welding. These stresses may result in unwanted distortion after further processing.  They may also have detrimental effects on fatigue life and stress corrosion.

Whilst peak stresses can be relieved at 150-200°C after hardening, to remove all residual stresses stress relieving is undertaken at temperatures 550-680ºC.  Stress relieving at high temperatures may often be referred to as sub-critical annealing or process annealing.