Also, annealing causes a substantial increase in the material’s heat deflection temperature (HDT), meaning that annealed parts can survive higher short-term temperature peaks under load. Additional advantages of annealing Stanyl include an improved salt spray resistance, also known as the Denso CaCl2 test.
A side effect of annealing can be a reduced elongation at break and impact behavior. Shrinkage upon annealing also occurs, which can be taken into account during the part design. Therefore, we often recommend long-term annealing in nitrogen over air.
Air annealing results in greater discoloration effects. For standard annealing, it is still possible to conduct the annealing process in air when some discoloration to the part is acceptable. For longer annealing times it is strongly advised to be conducted under nitrogen.
Annealing can be an interesting option to increase a part’s performance, reduce the moisture uptake and reduce the dimensional stability of the part. These things can increase the part’s lifespan.
Talk to us today to discuss if annealing is suitable to improve your part’s performance as well. Contact us for product inquiries or sample requests.