ASTM A430/A430M-91 PDF

Full title and description

ASTM A430/A430M-91 — Specification for Austenitic Steel Forged and Bored Pipe for High‑Temperature Service. This standard specified requirements for forged and bored austenitic stainless steel piping intended for elevated‑temperature applications, providing dimensional, material, heat‑treatment and acceptance criteria (1991 edition).

Abstract

ASTM A430/A430M-91 provided a short, focused specification covering forged and bored austenitic stainless steel pipe intended for high‑temperature service. It defined applicable material grades, dimensional limits, mechanical and heat‑treatment requirements, and inspection/testing/marking provisions for purchased forgings and bored pipe. The standard has since been withdrawn and its use redirected to the broader ASTM A312 family.

General information

• Status: Withdrawn / superseded (discontinued in 1995; users instructed to use ASTM A312).
• Publication date: 1991 (1991 edition; bibliographic publication noted July 15, 1991 in archival listings).
• Publisher: ASTM International (American Society for Testing and Materials).
• ICS / categories: 23.040.10 — Iron and steel pipes.
• Edition / version: A430/A430M — 1991 edition (designation A430/A430M-91).
• Number of pages: 5 pages (short specification).

Scope

Scope: the specification applied to forged and bored pipe items made from austenitic stainless steels for high‑temperature service. It addressed material condition, heat treatment, dimensional tolerances, marking and required tests appropriate to pressure‑containing piping used at elevated temperatures. As a dual‑designation standard (A430/A430M) it referenced both customary and metric measurement practices where applicable.

Key topics and requirements

• Definition of applicable austenitic stainless steel grades for forged and bored pipe products.
• Dimensional and tolerance requirements for bored and forged pipe ends and bore sizes.
• Heat‑treatment and thermal processing conditions to achieve required high‑temperature properties.
• Mechanical property requirements (tensile, yield, elongation) and acceptance criteria.
• Inspection and testing provisions — e.g., nondestructive checks, hydrostatic or other pressure tests as specified by purchaser.
• Material marking, certification and packaging/identification requirements for traceability.
• Dual designation (A430/A430M) indicating customary and metric units treatment in the document.

Typical use and users

Typical users included piping specifiers, procurement engineers, manufacturers of forged and bored stainless steel pipe components, inspection agencies and owners/operators in industries requiring elevated‑temperature service (power generation, petrochemical, refining, process industries). Engineers used the standard as a purchasing/specification reference until it was withdrawn and consolidated into broader pipe specifications.

Related standards

Key related documents: ASTM A312 (Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes) — the primary standard that superseded/absorbed the use of A430/A430M; other related ASTM publications include specifications for forgings and fittings (for example ASTM A182 for forged or rolled alloy and stainless steel fittings and A403 for fittings). Users are generally directed to the current edition of ASTM A312 for high‑temperature austenitic pipe requirements.

Keywords

Austenitic stainless steel; forged pipe; bored pipe; high‑temperature service; ASTM A430; A430M; withdrawn; superseded; ASTM A312; pipe specification.

FAQ

Q: What is this standard?

A: ASTM A430/A430M-91 is a short ASTM specification that covered austenitic stainless steel forged and bored pipe intended for high‑temperature service (1991 edition). It has been withdrawn and superseded by broader pipe specifications.

Q: What does it cover?

A: It covered material grades, dimensional tolerances for bored and forged pipe, heat‑treatment and mechanical property requirements, inspection/test and marking provisions appropriate for high‑temperature service components.

Q: Who typically uses it?

A: Engineers, procurement/specification writers, manufacturers of forged/bored stainless steel pipe, and inspection bodies in industries like power, petrochemical and process plants — essentially anyone specifying austenitic forged pipe for elevated‑temperature service (prior to withdrawal).

Q: Is it current or superseded?

A: It is withdrawn (discontinued in 1995) and users are directed to use ASTM A312 (and related current ASTM/ASME piping standards) for equivalent requirements.

Q: Is it part of a series?

A: Yes — A430/A430M sat within the ASTM A series of standards for steel piping materials; the dual designation (A430/A430M) denotes the customary (inch) and metric (M) companion provisions. Many specific piping/material standards in the A series interrelate (for example A182, A312, A403).

Q: What are the key keywords?

A: Austenitic stainless steel; forged and bored pipe; high‑temperature; A430; A430M; withdrawn; ASTM A312; piping materials.