PDF Download


Designation: A – 90b (Reapproved ). Standard carbon steel bars, hot rolled 1 in. diameter by 10 ft, ASTM A dated ___. SAE According to standards. ASTM A b Hot Rolled. Number. ASTM A /AM: Cold-drawn. Equivalent. USA AISI/SAE. Italy UNI. (ASTM) (Continued) ASTM A51 1 () ASTM A51 () ASTM A51 3 (a) ASTM A/AM () ASTM A () ASTM Ab.

Author: Bagis Temuro
Country: Iraq
Language: English (Spanish)
Genre: Technology
Published (Last): 28 November 2010
Pages: 71
PDF File Size: 13.23 Mb
ePub File Size: 7.31 Mb
ISBN: 759-7-35281-703-8
Downloads: 71443
Price: Free* [*Free Regsitration Required]
Uploader: Nikokasa

Subscription pricing is determined by: Add to Alert PDF. These steels are produced with more precise dimensions and chemistry.

This specification has got 53 grades under the category of non-resulfurized steels, 15 grades under the category of resulfurized steels and 5 grades under rephosphorized and resulfurized category. Standards Subsctiption may be the perfect solution.

Your Alert Profile lists the documents that will be monitored. These steels have superior mechanical properties and defect free surface. 90n

This standard is not included in any packages. Sulphur content in the 15 grades of the resulfurized steels also have different ranges of sulfur with a minimum of 0. These steels are also used for a wide range of industrial applications.

Quality SAE Chemical composition Temperature °C

Already Subscribed to this document. A guide for the selection of steel bars is contained in Practice A The main application area for special bar quality steels is the automotive industry for engine, transmission, steering, suspension and hydraulic components Fig 1.

Leave a Reply Cancel reply Your email address will not be published. In the hand tools sector, they are used for hammers, screwdrivers and wrenches, among others. In order to achieve metallurgical quality, the steel has to be particularly clean. Special bar quality SBQ steels represents a wide variety of higher quality carbon and alloy steels. This makes the production route of these steels a bit complex. Your email address will not be published.


Internal metallurgical quality and consistency is also achieved by a meaningful reduction during the rolling process. Need more than one copy?

Fig 1 Some of the uses of SBQ ast, in automotive industry. Although there is no single definition, special bar quality steel can be defined as steel that moves rotates, twists or bends rather than stays still whilst in use. This standard is also available to be included in Standards Subscriptions.

Pipe billet

The chemistry of these steels is more complex than merchant quality steels. Special bar quality steel may have products of shapes which can be classified into round, square and hexagonal bars.

Donate Grateful for your donation! SBQ zstm are at the higher end of the quality spectrum in both metallurgical consistency and dimensional accuracy. Both these terms refer to steel types as well as to bar products, and as they are often associated with the steel grades, they refer to billet and slab as well as bar. These steels are generally machined, forged or cold drawn during subsequent processing.

Special quality bar a5776 include forging, heat treating, cold drawing, machining, and many structural uses. Steel cleanliness can be achieved through the integrated route or through ast, additional refining step and cleaner iron bearing inputs into an EAF in a mini mill.


You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing asm. Similar is the case of resulfurized and rephosphorized steels.

SBQ steels are used in safety critical applications.

These steels are qstm both in cut lengths and coils. Hot-wrought special quality carbon steel bars are produced in cut lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils, produced to a chemical composition.

SBQ steels are used for wind turbine components, bearings and seamless tubes. Designed by Elegant Themes Powered by WordPress.

The internal quality of these steels is very important since machining and bending activities are involved during the processing of these steels in subsequent stages.

Some end uses of these steels may require superior surface quality, or special chemical restrictions, metallurgical characteristics, heat treatment or surface finishes.

Please first verify your a5776 before subscribing to alerts. Please first log in with a verified email before subscribing to alerts. If the document is revised or amended, you will be notified by email. SBQ steels are used for bolts, springs, cable wires, chains, tyre beads and many similar applications in automotive industry.