ASTM A131/A131M-19 rus PDF

Full title and description

ASTM A131/A131M-19 — Standard Specification for Structural Steel for Ships. This specification establishes requirements for structural steel plates, shapes, bars (and rivets) intended primarily for ship construction, covering both ordinary- and higher-strength grades and the associated chemical, mechanical, and metallurgical requirements.

Abstract

ASTM A131/A131M-19 specifies material grades, minimum yield strengths, manufacturing and heat-treatment conditions, thickness limits, and required mechanical tests (including Charpy V-notch impact testing where applicable) for structural steels used in ship hulls and related marine structures. The standard is provided in both inch‑pound and SI unit designations (the M designation).

General information

• Status: Active (current edition approved May 1, 2019).
• Publication date: May 1, 2019 (designation A131/A131M‑19).
• Publisher: ASTM International.
• ICS / categories: 47.020 (Shipbuilding; materials and components for shipbuilding).
• Edition / version: A131/A131M‑19 (revises A131/A131M‑14).
• Number of pages: Typically published as a short specification (commonly listed as 7–8 pages depending on formatting).

Scope

This specification covers structural steel plates, shapes, bars, and rivets intended primarily for use in ship construction. It defines two principal categories — Ordinary Strength (Grades A, B, D, E) and Higher Strength (Grades AH, DH, EH, FH) — and sets limits on thickness, required heat treatment/conditioning, chemical composition, and mechanical testing necessary to verify yield strength, tensile properties, elongation and impact toughness where required. Units are given in both inch‑pound and SI (M) forms; each system is to be used independently unless the M designation is specified.

Key topics and requirements

• Classification of grades into Ordinary Strength (min yield ~34 ksi / 235 MPa) and Higher Strength (min yields ~46, 51, or 57 ksi / 315, 350, 390 MPa).
• Typical product forms: plates, shapes and bars (with shapes/bars normally available in selected grades by agreement).
• Maximum furnished thicknesses: plates up to about 4 in (≈100 mm) and shapes/bars up to about 2 in (≈50 mm) unless otherwise agreed.
• Heat treatment and thermomechanical processing requirements (normalizing or TMCP for plates; heat treatment for shapes and bars) and metallurgical requirements such as grain‑size evaluation.
• Mechanical testing requirements including tension and, where specified, Charpy V‑notch impact testing to demonstrate toughness for ship structural service.
• Welding note: when steel is to be welded, appropriate welding procedures and considerations (see referenced ASTM A6/A6M guidance) apply.

Typical use and users

Used by shipbuilders, naval architects, structural engineers, classification societies, steel producers and suppliers, procurement specialists, and testing laboratories to specify, produce, inspect and qualify structural steel for merchant and naval ship hulls and related marine structures. The standard is referenced in purchase specifications, material certificates, and fabrication/welding procedures.

Related standards

Commonly referenced standards include ASTM A6/A6M (General requirements for rolled structural steel bars, plates, shapes, and sheet piling) for weldability notes and general product requirements; various ASTM standards for mechanical testing and chemical analysis; and classification society rules for additional ship‑specific requirements. The 2019 edition supersedes the 2014 edition (A131/A131M‑14).

Keywords

shipbuilding, structural steel, plates, shapes, bars, A131, A131M, higher strength steel, yield strength, Charpy V‑notch, TMCP, normalizing, welding, maritime steel, grades AH DH EH FH, grades A B D E.

FAQ

Q: What is this standard?

A: ASTM A131/A131M‑19 is the ASTM International standard specification that defines the requirements for structural steels intended primarily for ship construction, including grade classifications, mechanical and chemical requirements, heat treatment, and testing.

Q: What does it cover?

A: It covers structural steel plates, shapes, bars, and rivets for ship construction, specifying ordinary and higher strength grades, minimum yield strengths, thickness limits, required heat treatment or processing, metallurgical requirements, and mechanical tests such as tension and Charpy impact testing.

Q: Who typically uses it?

A: Shipbuilders, steel mills, materials engineers, classification societies, naval architects, procurement teams, and testing laboratories use this specification to procure, manufacture, test and verify ship structural steels.

Q: Is it current or superseded?

A: The designation A131/A131M‑19 is the current edition published in 2019 and supersedes A131/A131M‑14. Users should confirm that no later amendments or revisions have been issued before final procurement.

Q: Is it part of a series?

A: It is part of ASTM Committee A01 work on steel and related alloys and is published alongside other ASTM structural steel specifications; it cross‑references general ASTM requirements such as A6/A6M and other test method standards as needed.

Q: What are the key keywords?

A: Shipbuilding, structural steel, A131, A131M, grades A/B/D/E, grades AH/DH/EH/FH, yield strength, TMCP, normalizing, Charpy V‑notch, welding.