GSO ASTM A521/A521M:2012
Gulf Standard
Current Edition
·
Approved on
31 December 2012
·
Standard Specification for Steel, Closed-Impression Die Forgings for General Industrial Use
GSO ASTM A521/A521M:2012 Files
English
9 Pages
Current Edition
Reference Language
GSO ASTM A521/A521M:2012 Scope
1.1 This specification covers untreated and heat-treated steel, closed-impression die forgings (Note 1) for general
industrial use.
NOTE 1—For the definition of a forging, refer General Requirements
Specification A788/A788M.
1.2 The Grades of forgings are as follows, the choice
depending on design and stress or service to be imposed:
1.2.1 Grade CA—Untreated, carbon steel forgings,
1.2.2 Grades CC, CC1, and CE—Annealed, normalized and
tempered, carbon steel forgings,
1.2.3 Grade CF—Normalized and tempered carbon steel
forgings,
1.2.4 Grade CF1—Double normalized and tempered carbon
steel forgings,
1.2.5 Grade CG—Quenched and tempered, or normalized,
quenched and tempered carbon steel forgings,
1.2.6 Grade AA—Annealed, normalized, or normalized and
tempered alloy steel forgings,
1.2.7 Grades AB and AC—Normalized and tempered alloy
steel forgings, and
1.2.8 Grades AD, AE, AF, AG, and AH—Normalized,
quenched, and tempered alloy steel forgings.
1.3 Unless the order specifies the applicable “M” specification designation, the forgings shall be furnished with the inch-pound units.
1.4 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standard. 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.
Best Sellers From Construction and Building Sector
GSO 1431:2002
Gulf Technical Regulation
Sanitary appliances - pressurized flushing devices
GSO 1427:2008
Gulf Standard
Ceramic Sanitary Appliances - Western Water Closets
GSO 2084:2010
Gulf Standard
Design and application of speed control humps
GSO 440:2007
Gulf Standard
Calcium Silicate bricks
Recently Published from Construction and Building Sector
GSO ASTM C926:2024
ASTM C926:23a
Gulf Standard
Standard Specification for Application of Portland Cement-Based Plaster
GSO ASTM C1702:2024
ASTM C1702:23
Gulf Standard
Standard Test Method for Measurement of Heat of Hydration of Hydraulic Cementitious Materials Using Isothermal Conduction Calorimetry
GSO ISO 12543-6:2024
ISO 12543-6:2021
Gulf Standard
Glass in building — Laminated glass and laminated safety glass — Part 6: Appearance
GSO EN 772-11:2024
EN 772-11:2011
Gulf Standard
Methods of test for masonry units - Part 11: Determination of water absorption of aggregate concrete, autoclaved aerated concrete, manufactured stone and natural stone masonry units due to capillary action and the initial rate of water absorption of clay masonry units