Accession Number:

AD0416624

Title:

PROCESS CONTROL - EFFECT OF ACID CLEANING ON THE MECHANICAL PROPERTIES OF 17-4 PH STEEL IN VARIOUS HEAT TREATED CONDITIONS

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS CORP FORT WORTH TX

Personal Author(s):

Report Date:

1963-08-05

Pagination or Media Count:

18.0

Abstract:

Cleaning 17-4 steel parts as specified in Process Standard 61.32B will not produce embrittlement in 17-4 PH wrought forms at nominal strength levels. Cleaning 17-4 PH castings as specified in Process Standard 61.32B could not be evaluated because of the inherent structural characteristic of low ductibility at 180 K.S.I. minimum strength. Because of the difficulty in controlling aggregate immersion time, 17-4 PH steel parts, castings and wrought, should not be acid pick.dd. Acid pickling will not embrittle 17-4 PH steel parts, but susceptibility to failure due to intergranular attack will increase proportion ally to increase in immersion time.

Subject Categories:

  • Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE