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- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
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- From: "Armijo, John J (PWCSD 410)" <ArmijoJJ(--nospam--at)PWCSD.NAVY.MIL>
- Date: Tue, 24 Sep 2002 12:29:18 -0700
SAE J429 and a high strength structural bolt?
A: While both bolts have a minimum tensile strength of 120,000 psi, the differences
include the following:
2.Controlled grip ranges min/max for
each diameter/length combination of
3.A325's only available in heavy hex
configuration as defined in ASME
4.A325's have specific quality assurance requirements
5.A325T is for lengths 4D threaded fully
fastener when steel chemistry is not specified?
factors are product diameter, geometry (shape), amount of cold (or hot) forming required,
finished mechanical properties, heat treat capabilities, application requirements, steel
availability, and cost.
the chemistry should be selected based on the desired mechanical properties of the finished
part. In general, Grade 5 products are made from plain (nonalloy) medium carbon steel such
as 1038. Grade 8 products are made from medium carbon alloys such as 4037, 4140, 8637
From: Jnapd(--nospam--at)aol.com [mailto:Jnapd(--nospam--at)aol.com]
Sent: Tuesday, September 24, 2002 11:38 AM
Subject: (no subject)
Grade 5 or Grade 8 bolts I can't find any info on this desigination does anyone know where I can look ?
Johnson & Nielsen Associates
Palm Springs, CA
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