 |
| Purchase Information |
| Use this form to request purchase information on ASTM online subscriptions. |
|
|
Document ASTM A 646/A 646M is offered by IHS as part of an online subscription. This subscription contains many documents on the same topic.
You may also purchase this document alone from the IHS Standards Store.
ASTM A 646/A 646M Document Information:
Title
Standard Specification for Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings
ASTM International
Publication Date:
Dec 1, 2006
Scope:
This specification covers premium quality alloy steel semifinished rolled or forged blooms and billets for reforging into critical parts such as aircraft landing-gear forgings.
Blooms and billets, hereinafter referred to as blooms, are semifinished steel products, hot rolled or forged to approximate cross-sectional dimensions. Blooms may be square, round, hexagonal, octagonal, or rectangular in section. For the purposes of this specification, minimum bloom section size will be 16 in.2 [103 cm2].
This specification covers two basic classifications of steel:
Class I—Vacuum-induction melted or consumable-electrode vacuum melted, or other suitable processes which will satisfy the quality requirements of this specification.
Class II—Air-melted vacuum degassed.
Class III—Air melted electric furnace ladle refined and vacuum degassed
The values stated in either inch-pound or SI (metric) units are to be regarded separately as standards.Within the text and tables, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
Unless the order specifies the applicable “M” specification the material shall be furnished to the inch-pound units.
*A Summary of Changes section appears at the end of this standard.
Keywords:
- vacuum degassed
- premium quality
- ladle refined
- electric furnace
- steel billets
- alloy steels
- vacuum melted
- steel blooms
- aerospace application
- reforging stock
- consumable electrode remelted
About IHS
IHS (NYSE: IHS) is a leading global provider of critical technical information, decision-support tools and related services in a number of industries including aerospace and defense, automotive, construction, electronics, and energy. IHS serves customers ranging from large governments and multinational corporations to smaller companies and technical professionals in more than 100 countries. IHS been in business for more than 45 years and employ more than 2,300 people around the world.
