ASTM B760-07 (2023) PDF
Name in English:
St ASTM B760-07 (2023)
Name in Russian:
Ст ASTM B760-07 (2023)
Original standard ASTM B760-07 (2023) in PDF full version. Additional info + preview on request
Full title and description
ASTM B760‑07 (Reapproved 2023) — Standard Specification for Tungsten Plate, Sheet, and Foil. This specification defines the chemical, metallurgical, dimensional, and product‑form requirements for wrought unalloyed tungsten supplied as plate, sheet, or foil, and the associated ordering, identification, and inspection provisions.
Abstract
This standard covers wrought unalloyed tungsten in flat product forms (plate, sheet, foil). It specifies acceptable manufacturing routes (powder metallurgy or vacuum‑arc casting followed by rolling/forging/extrusion), required chemical limits for key impurities, permitted metallurgical conditions, dimensional tolerances, lot definitions, and typical inspection/identification requirements to ensure consistent supply of tungsten flat products for high‑temperature, electrical, and precision applications.
General information
- Status: Current — reapproved 2023
- Publication date: Reapproved November 2023 (original edition published December 1, 2007).
- Publisher: ASTM International
- ICS / categories: ICS 77.150.10 (classification used in the standard listings); maintained by ASTM Committee B10 (Reactive and Refractory Metals and Alloys), Subcommittee B10.04 (Molybdenum and Tungsten).
- Edition / version: B760‑07 (2007 edition, reapproved 2023)
- Number of pages: 4
Scope
The specification applies to wrought, unalloyed tungsten produced as plate, sheet, and foil. It defines product‑form limits (foil, sheet, plate), acceptable production methods (powder metallurgy and vacuum‑arc‑casting routes), required chemical composition limits for impurities (examples: carbon, oxygen, nitrogen, iron, nickel, silicon), required metallurgical conditions (hot‑rolled, stress‑relieved, cold‑rolled), dimensional tolerances (thickness, width, length, flatness), lot definitions, and inspection/documentation and marking requirements for purchaser‑seller orders.
Key topics and requirements
- Product definitions and thickness bands (typical: foil <0.005 in, sheet ≈0.005–0.187 in, plate ≥0.188 in).
- Permissible chemical composition/check‑analysis limits for impurities (C, O, N, Fe, Ni, Si and related tolerances).
- Approved manufacturing routes: powder metallurgy consolidation or vacuum‑arc casting, followed by conventional rolling/forging/extrusion.
- Required metallurgical conditions: hot‑rolled, stress‑relieved, and cold‑rolled product conditions as applicable.
- Dimensional tolerances and flatness limits for thickness, width, and length; purchaser and manufacturer agreement points.
- Lot definitions, sampling and testing rules (heat analysis, check analysis), and criteria for disposition of nonconforming material.
- Workmanship, finish, marking, and documentation (mill certificates, heat/lot traceability) requirements.
Typical use and users
Users include tungsten product manufacturers, material purchasers and procurement/specification engineers, quality and inspection personnel, metallurgists, and designers in industries such as aerospace, electronics, high‑temperature furnace components, electrical contacts and filaments, radiation shielding/ballast, sputtering targets, and other precision or high‑temperature applications where unalloyed tungsten flat products are required.
Related standards
Other ASTM standards and guides of interest include related reactive/refractory metal specifications and test methods maintained by Committee B10 and subcommittees — for example, ASTM B386 (molybdenum plate, sheet, strip, and foil), ASTM B387 (molybdenum bar/rod/wire), ASTM B761 (particle size / powder test methods relevant to refractory metal powders), and analytical or spectrometric guides covering reactive/refractory metal analysis. Purchasers and laboratories often reference these related documents when specifying production route, testing, or acceptance criteria.
Keywords
tungsten; plate; sheet; foil; refractory metals; powder metallurgy; vacuum arc casting; chemical composition; dimensional tolerances; ASTM B760; reactive metals; B10 committee.
FAQ
Q: What is this standard?
A: ASTM B760‑07 (Reapproved 2023) is the ASTM standard specification that defines requirements for wrought unalloyed tungsten supplied as plate, sheet, or foil.
Q: What does it cover?
A: It covers product forms, acceptable manufacturing routes (powder metallurgy or vacuum‑arc casting), chemical composition limits for key impurities, required metallurgical conditions, dimensional tolerances, lot definitions, inspection and marking, and ordering information for tungsten flat products.
Q: Who typically uses it?
A: Manufacturers of tungsten plate/sheet/foil, material purchasers and specification writers, quality/control laboratories, metallurgists, and engineers in aerospace, electronics, high‑temperature equipment, and other industries needing tungsten flat products.
Q: Is it current or superseded?
A: The 2007 edition (B760‑07) has been maintained by periodic reapproval; it was most recently reapproved in November 2023 and is treated as the current active specification.
Q: Is it part of a series?
A: It is part of the body of ASTM standards maintained by Committee B10 (Reactive and Refractory Metals and Alloys) and is associated with other B‑series specifications for molybdenum, tungsten, and related refractory materials (for example ASTM B386, B387, and related test methods/guides).
Q: What are the key keywords?
A: Tungsten, plate, sheet, foil, refractory metals, powder metallurgy, vacuum‑arc casting, dimensional tolerances, chemical composition, ASTM B760.