ASTM A108-24 PDF
Name in English:
St ASTM A108-24
Name in Russian:
Ст ASTM A108-24
Original standard ASTM A108-24 in PDF full version. Additional info + preview on request
Full title and description
ASTM A108-24 — Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished. This specification covers cold‑finished carbon and alloy steel bars produced in straight length and coil for heat treatment, machining into components, or use in the as‑finished condition (for shafting, constructional applications, and similar purposes). It defines grades, required chemical and mechanical properties, dimensional tolerances, surface condition, and supplementary requirements when specified by the purchaser.
Abstract
ASTM A108-24 is the 2024 revision of the long‑standing A108 series and provides requirements for standard quality cold‑finished carbon and alloy steel bars. The standard specifies acceptable manufacturing processes (cold drawn, turned, ground, polished, cold rolled, hot‑wrought and heat‑treated where applicable), required tests (chemical analysis and mechanical testing), marking, and purchaser‑specified supplementary requirements. It is intended to ensure consistent material quality for machining, heat treatment, and as‑finished applications.
General information
- Status: Current / Active
- Publication date: March 1, 2024 (A108-24)
- Publisher: ASTM International
- ICS / categories: 77.140.60 — Steel bars and rods
- Edition / version: ASTM A108-24 (2024 edition)
- Number of pages: 7
Scope
Scope covers cold‑finished carbon and alloy steel bars in straight lengths and coils. The standard applies to bars intended for heat treating, machining into parts, or use in the as‑finished condition (for shafting and constructional uses). It includes designation of grades (by number or chemical composition), allowable manufacturing methods, dimensional and surface condition requirements, and optional supplementary requirements that apply only when specifically ordered by the purchaser.
Key topics and requirements
- Definitions and classification of cold‑finished carbon and alloy steel bar grades.
- Chemical composition requirements and allowable variations for specified grades.
- Mechanical property requirements (tensile strength, yield where specified) and acceptance criteria.
- Manufacturing and finishing methods: cold drawing, turning, grinding, polishing, cold rolling, hot‑wrought processing, and heat treatment where applicable.
- Dimensional tolerances, form (round, square, hexagon, etc.), and permissible surface condition.
- Sampling, test methods and required inspection: chemical analysis, tensile tests, and any specified supplemental tests.
- Supplementary requirements and purchaser options for enhanced properties, end‑use restrictions, or special testing.
- Marking, certification, and documentation requirements for traceability.
Typical use and users
Used by steel producers, bar mills, metal service centers, distributors, fabricators, machine shops, design and manufacturing engineers, procurement teams, and quality/inspection personnel. Typical applications include shafts, pins, fasteners, machined components, fixtures, and general constructional parts where cold‑finished bars provide the required surface finish and mechanical properties.
Related standards
Commonly referenced and related standards include ASTM A400 (practice/selection guide for steel bars), A29/A29M (general requirements for steel bars), A311 (stress‑relieved cold‑drawn bars), A322, A434, A689 and other ASTM specifications covering hot‑wrought, quenched and tempered, or spring steels. Purchase orders often cite A108 together with A400 for selection guidance and with relevant test method standards referenced within.
Keywords
ASTM A108-24, cold‑finished bar, carbon steel bar, alloy steel bar, turned bar, cold drawn, cold rolled, shafting, machining stock, chemical composition, mechanical properties, dimensional tolerances.
FAQ
Q: What is this standard?
A: ASTM A108-24 is the 2024 edition of the ASTM standard specification that defines requirements for cold‑finished carbon and alloy steel bars in straight lengths and coils.
Q: What does it cover?
A: It covers acceptable grades, chemical and mechanical property requirements, manufacturing and finishing processes, dimensional and surface tolerances, testing and sampling, marking, and optional supplementary requirements for cold‑finished steel bars.
Q: Who typically uses it?
A: Steel manufacturers, distributors and service centers, machinists, fabrication shops, design and manufacturing engineers, procurement and quality assurance personnel use A108 when specifying or purchasing cold‑finished bar stock.
Q: Is it current or superseded?
A: ASTM A108-24 is current (active). It supersedes the previous A108‑18 edition; the effective publication date for A108‑24 is March 1, 2024.
Q: Is it part of a series?
A: Yes. A108 is part of ASTM’s family of steel bar standards and is used alongside general requirements standards (e.g., A29/A29M), selection guides (A400), and related bar specifications (A311, A322, A434, A689, etc.).
Q: What are the key keywords?
A: Cold‑finished, steel bar, carbon steel, alloy steel, turned bar, cold drawn, cold rolled, shafting, machining, dimensional tolerances.