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2013 Edition, December 1, 2013

Complete Document

Uphill Quenching of Aluminum Alloy Product

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Product Details:

  • Revision: 2013 Edition, December 1, 2013
  • Published Date: December 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 5
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This specification establishes engineering requirements for the uphill quenching process. Uphill quenching immerses product in liquid nitrogen followed by exposure to a high pressure/velocity steam blast or boiling water.


These processes are applicable to both wrought and cast shapes.

This document is applicable when called out on an engineering drawing, required or permitted by a heat-treating specification or specified by a customer purchase order. 


This process is categorized by types, classes and levels as follows:

Type I - Uphill quench using high velocity steam as the heating medium.

Type II -Uphill quench using boiling water as the heating medium.

Class 1 - Applications where uphill quench process is preceded by solution treatment and quenching (AQ).

Class 2-Applications where uphill quench process is performed on material in any other condition (e.g. F,O,W,T5,T6,T7,T8...) than as specified in class 1.

Level 1 process is controlled and qualified by a procedure developed by the processor.

Level 2 process is controlled and qualified by a procedure developed by the processor and approved by the customer that may include a stress reduction test method defined by the customer.

When no type, class or level is specified, Type I, Class1, Level 2 shall be the default condition.
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