GB Standard List: Irons, Structural and Constructional Steels, Stainless Steels, Castings and Welding

The group of Chinese (GB) standard specifications covers iron and carbon and alloy steel within different delivery conditions such as plates, strips, shits, bars, wires, castings, forgings etc. All character set standards that originate in the PRC have designations that begin with "GB". GB is an abbreviation of Guojia Biaozhun, meaning "national standard".

GB standards are the Chinese national standards issued by the Standardization Administration of China (SAC), the Chinese National Committee of the ISO and the IEC. This article gives information on the following material categories:

  • Irons
  • Structural and Constructional Steels
  • Stainless Steels
  • Castings
  • Welding and Filler materials

 

For more information on the GB designation system see Introduction to the GB Standard Designation System.

The list of standards below cover a wide range of materials and applications a few of which are:

  • Various steels suitable for specialist applications such as use in pressure vessels
  • Stainless steels used specifically in for the production of surgical implants
  • Numerous welding applications specifically electrode applications

 

Iron

Standard
Number
Last
version
Description Status
GB/T 1348 2009 Spheroidal graphite iron castings /28/
GB/T 1412 2005 Pig iron used for spheroidal graphite cast iron /2/
GB/T 717 1998 Pig iron for steelmaking /No materials/
GB/T 718 2005 Foundry pig iron /No materials/
GB/T 719 2004 Pig iron - Sampling for chemical analysis /No materials/
GB/T 9439 2004 Grey iron castings /6/
GB/T 9440 2004 Malleable iron castings /12/
GB/T 9441 1988 Metallographic test for spheroidal graphite cast iron /No materials/
GB/T 9971 2004 Pure iron for raw material /No materials/

 

Structural and Constructional Steels

 

Standard
Number
Last
version
Description Status
GB 13013 2004 Hot rolled plain steel bars for the reinforcement of concrete /1/
GB 13014 2004 Remained heat treatment ribbed steel bars for the reinforcement of concrete /1/
GB 1499 2008 Hot rolled ribbed steel bars for the reinforcement of concrete /13/
GB 18248 2008 Seamless steel tubes for gas cylinder /6/
GB 19189 2003 Quenched and tempered high strength steel plates for pressure vessels /3/
GB 2270 1980 Seamless tubes /19/
GB 2517 1981 Sheets and strips for structure /6/
GB 3087 2008 Seamless steel tubes for low and medium pressure boiler /4/
GB 3531 2008 Low alloy steel plates for low temperature pressure vessels /5/
GB/T 11251 2009 Hot-rolled alloy structural steel plates /26/
GB/T 1591 2008 High strength low alloy structural steels /37/
GB/T 16270 2009 High-strength structural steel plates and strips: products supplied in the heat-treated or controlled rolled condition /14/
GB/T 17107 2004 Structural steel grades and mechanical property for forgings /78/
GB/T 20564-1 2007 Continuously cold rolled high strength steel sheet and strip for automobile - Part 1:Bake hardening steel /5/
GB/T 20564-3 2007 Continuously cold rolled high strength steel sheet and strip for automobile - Part 3: High strength interstitial free steel /3/
GB/T 20887-1 2007 Continuously hot rolled high strength steel sheet and strip for automobile. Part 1: High yield strength steel for cold forming /11/

 

Stainless Steel

 

Standard
Number
Last
version
Description Status
GB 13296 2007 Seamless stainless steel tubes for boiler and heat exchanger /34/
GB 4234 2004 Stainless steel for surgical implants /4/
GB/T 1220 2007 Stainless steel bars /197/
GB/T 14975 2004 Stainless steel seamless tubes for structures /23/
GB/T 14976 2004 Stainless steel seamless tubes for fluid transport /29/
GB/T 18705 2002 Welded stainless steel pipes for decoration /2/
GB/T 20878 2007 Stainless and heat-resisting steels - Designation and chemical composition /283/

 

Castings

 

Standard
Number
Last
version
Description Status
GB 5676 1985 Carbon cast steel /10/
GB/T 11352 2009 Carbon steel castings for general engineering purposes /10/
GB/T 1503 2008 Cast steel rolls /16/
GB/T 1504 2008 Cast iron rolls /No materials/
GB/T 16253 2004 Steel castings for pressure purposes /16/
GB/T 17445 2009 Cast grinding balls /6/
GB/T 14408 2004 Low alloy steel castings for general engineering and structural purposes /8/
GB/T 2100 2004 Corrosion-resistant steel castings for general applications /36/

 

Welding and Filler materials

 

Standard
Number
Last
version
Description Status
GB/T 17493 2008 Low alloy steel flux cored electrodes for arc welding /142/
GB/T 3429 2002 Wire rod for electrode /49/
GB/T 4241 2006 Stainless steel wire rods for welding /59/
GB/T 5117 2004 Carbon steel covered electrodes /33/
GB/T 8110 2008 Welding wires for gas shielding arc welding of carbon and low alloy steels /33/
GB/T 983 1995 Stainless steel covered electrodes /77/

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April, 2011
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