SAE AMS4842F-2018 PDF

Full title and description

SAE AMS4842F — Castings, Leaded Bronze, Sand and Centrifugal, 80Cu - 10Sn - 9.5Pb, As Cast. This material specification defines the composition and requirements for leaded-bronze castings produced by sand and centrifugal methods for aerospace and related applications.

Abstract

AMS4842F (Revision F, issued September 7, 2018) specifies a leaded bronze alloy (nominally 80% Cu, 10% Sn, 9.5% Pb) in the form of sand and centrifugal castings "as cast." The standard sets chemical, casting, inspection and acceptance requirements used by producers, procuring agencies and maintenance organizations. The F revision has since been superseded by a later revision (AMS4842G).

General information

• Status: Superseded / non-current (replaced by AMS4842G).
• Publication date: September 7, 2018 (Revision F).
• Publisher: SAE International (Aerospace Material Specification - AMS).
• ICS / categories: Aerospace materials / Nonferrous alloys / Copper alloys / Casting specifications.
• Edition / version: Revision F (2018).
• Number of pages: 6 (material specification length as listed).

Scope

This specification covers leaded bronze in the form of sand and centrifugal castings, furnished in the as-cast condition. The nominal alloy composition is 80Cu - 10Sn - 9.5Pb (commonly referenced as CA 93700 family), and the document addresses allowable compositional ranges, casting methods, inspection, and acceptance criteria for aerospace usage.

Key topics and requirements

• Chemical composition and allowable element ranges for the 80Cu - 10Sn - 9.5Pb leaded-bronze alloy.
• Permitted casting forms and processes: sand casting and centrifugal casting (as-cast condition).
• Inspection and acceptance criteria for casting defects, dimensional checks and visual examination.
• Sampling, test methods and required certifications (material identification and mill/heat traceability).
• Marking, packaging and procurement requirements appropriate for aerospace material specifications.

Typical use and users

Used by aerospace and industrial designers, foundries and casting suppliers, procurement and quality engineers, maintenance/repair organizations and OEMs that require a standardized leaded-bronze casting for bearings, bushings, sleeves and other components where the specific alloy and casting method are required.

Related standards

AMS4842F is one revision in the AMS4842 series. It was revised as AMS4842F (2018) and subsequently superseded by AMS4842G (published 2025). Earlier revisions include AMS4842E and AMS4842C/B/A; those prior editions retained similar scope for the 80Cu‑10Sn‑9.5Pb castings.

Keywords

AMS4842F, leaded bronze, castings, sand casting, centrifugal casting, 80Cu-10Sn-9.5Pb, CA 93700, SAE AMS, aerospace material specification.

FAQ

Q: What is this standard?

A: SAE AMS4842F is an Aerospace Material Specification that defines requirements for leaded-bronze sand and centrifugal castings (nominally 80% Cu, 10% Sn, 9.5% Pb), issued as Revision F on September 7, 2018.

Q: What does it cover?

A: It covers the alloy composition, permitted casting forms (sand and centrifugal), inspection and acceptance criteria, sampling and certification practices, and marking/identification for the specified leaded-bronze castings.

Q: Who typically uses it?

A: Foundries and casting suppliers, aerospace OEMs and their procurement and quality engineering teams, and maintenance/repair shops that specify or accept cast bronze components for aerospace or industrial applications.

Q: Is it current or superseded?

A: AMS4842F (2018) has been superseded; the current revision is AMS4842G (published June 2025), so AMS4842F should be treated as non-current for new procurements.

Q: Is it part of a series?

A: Yes — AMS4842 is a series of material specifications with multiple revisions (A through at least G). The series documents the history of the same alloy/casting requirements across revisions.

Q: What are the key keywords?

A: Leaded bronze, sand casting, centrifugal casting, AMS4842F, SAE AMS, 80Cu-10Sn-9.5Pb, CA 93700, aerospace material specification.