ASTM B196/B196M-24 PDF
Name in English:
St ASTM B196/B196M-24
Name in Russian:
Ст ASTM B196/B196M-24
Original standard ASTM B196/B196M-24 in PDF full version. Additional info + preview on request
Full title and description
ASTM B196/B196M-24 — Standard Specification for Copper‑Beryllium Alloy Rod and Bar. This standard specifies requirements for wrought copper‑beryllium (Cu‑Be) rods and bars in straight lengths for UNS Nos. C17000, C17200, and C17300, including accepted tempers, chemical composition limits, dimensional and mechanical property requirements, and sampling/test procedures.
Abstract
This specification establishes minimum requirements for the production, dimensions, chemical composition, mechanical properties, and required testing of copper‑beryllium alloy rod and bar supplied in straight lengths. It defines the alloys covered (UNS C17000, C17200, C17300), the temper designations (solution‑treated, cold‑drawn, and precipitation‑treated variants), and the acceptance criteria for dimensional tolerances, tensile and yield strength, hardness, elongation, and composition. The standard also clarifies unit systems (inch‑pound and SI) and sampling and testing practices to verify conformance.
General information
- Status: Active (current as of February 20, 2026)
- Publication date: July 1, 2024
- Publisher: ASTM International (American Society for Testing and Materials)
- ICS / categories: 77.150.30 — Copper products
- Edition / version: ASTM B196/B196M-24
- Number of pages: 5
Scope
The specification covers copper‑beryllium alloy rod and bar in straight lengths for UNS Nos. C17000, C17200, and C17300. Unless otherwise specified, C17200 is the default alloy to be supplied. The document applies to material produced by casting and subsequent working (hot and cold) and heat treatment to achieve specified tempers. It addresses dimensional requirements (diameter, length, straightness, edge contour), mechanical properties after required heat treatment (tensile/yield strength, Rockwell hardness, elongation), chemical composition limits (beryllium and key alloying elements), sampling, testing and acceptance criteria. Inch‑pound and SI units are provided; each unit system is to be used independently.
Key topics and requirements
- Alloys covered: UNS C17000, C17200, C17300 (nominal beryllium contents and special designations).
- Temper designations and heat treatments: solution heat‑treated (TB00/A), cold‑drawn (TD04/H) and precipitation‑treated tempers (TF00/AT, TH04/HT) with notes on post‑machining precipitation treatment where required.
- Chemical composition limits including beryllium ranges and controls on other elements (Cu as remainder).
- Mechanical property limits (tensile strength, 0.2% offset yield, Rockwell hardness, elongation) by temper and section size.
- Dimensional requirements: diameter/section tolerances, straightness, length, and edge contour requirements for bars and rods.
- Sampling, specimen preparation and test methods to verify chemical and mechanical compliance.
- Unit system policy: inch‑pound and SI values are separate standards; do not combine values across systems.
- Ordering information recommendations: alloy designation, temper, dimensions, length, quantity, test/reporting requirements, and any special processing or certification needs.
- Safety caveat regarding machining and handling of beryllium‑containing materials — users must follow applicable health, safety and environmental regulations.
Typical use and users
Used by material specifiers, designers, manufacturers, distributors and quality engineers in industries that require high‑strength, corrosion‑resistant copper alloys with good conductivity and spring properties. Typical applications include electrical connectors and contacts, high‑strength springs and fasteners, precision components, aerospace and defense parts, oil & gas and downhole components, tooling, and electronic hardware. Primary users include metallurgists, procurement professionals, OEM design engineers, heat‑treat shops, and testing laboratories.
Related standards
Commonly referenced and related ASTM specifications include ASTM B249/B249M (General requirements for wrought copper and copper‑alloy rod, bar, shapes, and forgings) and other copper/beryllium product standards such as ASTM B194 (plate and sheet grades for copper‑beryllium). Older editions of this specification (for example B196/B196M‑18 and earlier) are superseded by the 2024 edition. Consult the ASTM catalogue for additional product and test‑method standards relevant to copper‑beryllium alloys.
Keywords
ASTM B196, B196M, copper‑beryllium, beryllium copper, Cu‑Be, UNS C17000, UNS C17200, UNS C17300, rod, bar, temper, TB00, TD04, TF00, TH04, precipitation heat treatment, tensile strength, Rockwell hardness, dimensional tolerances.
FAQ
Q: What is this standard?
A: ASTM B196/B196M-24 is the ASTM International specification that defines requirements for copper‑beryllium alloy rod and bar (UNS C17000, C17200, C17300), including composition, tempers, mechanical and dimensional properties, and testing.
Q: What does it cover?
A: It covers manufacture, tempering/heat treatment options, chemical composition limits, dimensional tolerances (diameter, length, straightness, edge contour), mechanical property limits (tensile, yield, hardness, elongation), sampling and test procedures, and ordering information for straight‑length rod and bar.
Q: Who typically uses it?
A: Material specifiers, design and manufacturing engineers, procurement and quality personnel, metallurgists, heat‑treat and machining shops, and testing laboratories in sectors such as electronics, aerospace, defense, oil & gas, and industrial equipment.
Q: Is it current or superseded?
A: The designation B196/B196M-24 is the 2024 edition, published July 1, 2024, and is the current active edition (current as of February 20, 2026). Earlier editions such as B196/B196M‑18 have been superseded.
Q: Is it part of a series?
A: Yes. It is part of ASTM’s suite of copper and copper‑alloy product standards and is used together with general requirements standards (for example ASTM B249/B249M) and other product‑specific ASTM specifications covering copper‑alloy shapes, plates, wire, and test methods.
Q: What are the key keywords?
A: Copper‑beryllium, beryllium copper, UNS C17000, UNS C17200, UNS C17300, rod, bar, temper, precipitation heat treatment, tensile strength, hardness, dimensional tolerances.