GB/T 221-2008 Active National standards

GB/T 221-2008 Notations for designations of iron and steel

Publish Date: 2008-08-05 Implement Date: 2009-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 221-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Iron and steel products

ICS Name: Comprehensive steel products

Publish Date: 2008-08-05

Implement Date: 2009-04-01

Pages: 11 pages

Scope

This standard specifies the method of designating the grades of steel products. This standard applies to the designation of grades of pig iron, carbon structural steel, low-alloy structural steel, high-quality carbon structural steel, easy-cutting steel, alloy structural steel, spring steel, tool steel, bearing steel, stainless steel, heat-resistant steel, welding steel, cold-rolled electrical steel, electromagnetic pure iron, raw pure iron, high-resistance electric heating alloys, and related special steels. For the method of designating the grades of steel products that are not specified in this standard, the grades shall be designated in accordance with the principles specified in this standard. The method of designating the grades of powder metallurgy materials, cast iron (parts), cast steel (parts), iron alloys, high-temperature alloys and high-temperature materials of intermetallic compounds, corrosion-resistant alloys, and precision alloys shall comply with the provisions of the following national standards, respectively.