jQuery Mobile Framework
Search Home >> Standards Wordwide >> Chinese Standards(GB) >> GB/T 3078-2008 Quality structural steel cold drawn bars

GB/T 3078-2008 Quality structural steel cold drawn bars

Standard Number:  GB/T 3078-2008
Title:  Quality structural steel cold drawn bars
Language:  Simplified Chinese
Publication Date:  2008/5/13
Execute Date:  2008/11/1
Adopted International Standard:  GB/T 1031;GB/T 10561;GB/T 13298;GB/T 13299;GB/T 17505;GB/T 1814;GB/T 1979;GB/T 20066;GB/T 20123;GB/T 2101;GB/T 222;GB/T 223.11;GB/T 223.12;GB/T 223.13;GB/T 223.14;GB/T 223.16;GB/T 223.17;GB/T 223.18;GB/T 223.19;GB/T 223.23;GB/T 223.24;GB/T 223.25;GB/T 223.26;GB/T 223.3;GB/T 223.4;GB/T 223.43;GB/T 223.49;GB/T 223.5;GB/T 223.54;GB/T 223.58;GB/T 223.59;GB/T 223.60;GB/T 223.61;GB/T 223.62;GB/T 223.63;GB/T 223.64;GB/T 223.66;GB/T 223.67;GB/T 223.68;GB/T 223.69;GB/T 223.71;GB/T 223.72;GB/T 223.75;GB/T 223.76;GB/T 223.8;GB/T 223.9;GB/T 224;GB/T 225;GB/T 226;GB/T 228;GB/T 229;GB/T 231.1;GB/T 2975;GB/T 3077;GB/T 3207-1988 Bright steel;GB/T 4162;GB/T 6394;GB/T 699;GB/T 7736;GB/T 905-1994 Dimension,shape,weight and tolerance for cold-drawn round,square and hexagonal steels;YB/T 5293
Status:  Current
Standard Type:  Product
International Classification for Standards (ICS)METALLURGY>>Iron and steel products>>Stainless steels
Publisher:  Chinese Standards(GB)
Price:13.20  
Number of Pages:10  

Preface: Instead of this standard GB/T 3078-1994 Technical requirements for quality structural steel cold drawn bars "high-quality structural steel cold drawn steel technical conditions". Compared this standard with GB/T 3078-1994 Technical requirements for quality structural steel cold drawn bars, the main changes are as follows: - the standard name by "high-quality structural steel cold drawn steel technical conditions" changed to "high-quality structural steel cold drawn steel"; - to cancel the classification The machining of steel; - increases the content of the order; - to cancel the cold upsetting the regulation of the chemical composition of steel; - increase the smelting method; - increase of cold-drawn polished delivery state provisions; - adjust the state of cold-drawn delivery of 38 crsi, 38 crmoala hardness value; - to cancel the annealing state delivery of cold upsetting by the provisions of the mechanical properties of steel; - increased after upsetting rules on the surface of the sample; Cancelled - subject to consent by the buyer, polished steel side total decarburization layer depth is not greater than 1.0% rules; - cancelled the machining steel surface quality. By this standard The China iron and steel association. This standard by the national standardization technical committee under centralized steel. This standard main drafting unit: chongqing donghua special steel co., LTD and information standards institute of metallurgy industry. Main drafter of this standard: Li Qingyan, Liu Baoshi, Dai Jiang, LuanYan. This standard replaced the standard for all previous releases : ---GB3078-1982,GB/T 3078-1994 Technical requirements for quality structural steel cold drawn bars  
Description:This standard specifies the classification of the structural steel cold drawn and polished steel, order content, size, shape and allowable deviation, technical requirements, test methods, inspection rules, packaging, logo and certificate of quality. This standard applies to the high quality carbon structural steel and alloy steel (round bar, square bar and hexagonal steel cold drawn steel bar. This standard gb/t3 instead 078-1994 "high-quality structural steel cold drawn steel technical conditions". Compared this standard with gb/t3078-1994, the main changes are as follows: - the standard name by "high-quality structural steel cold drawn steel technical conditions" changed to "high-quality structural steel cold drawn steel"; --, cancel the classification of china-africa machining steel; - - increases the "content" order; --, cancelled with the chemical composition of the steel cold upsetting; - increase the smelting method; - increase cold-drawn polishing delivery state provisions; --, adjusted the cold-drawn state delivery 38 crsi, 38 crmoala hardness value; - to cancel The annealing state delivery of cold upsetting steel mechanical properties; - increases the surface of samples after the upsetting; --, cancelled "subject to consent by the buyer, polished steel side total decarburization layer depth is not greater than 1.0% "; --, cancelled the machining steel surface quality.  
Cross References:,(),,,
GB/T222
GB/T223.3
GB/T223.4
GB/T223.5
GB/T223.8 EDTA
GB/T223.9 S
GB/T223.11
GB/T223.12 
GB/T223.13
GB/T223.14
GB/T223.16
GB/T223.17
GB/T223.18 
GB/T223.19 ___________
GB/T223.23
GB/T223.24 
GB/T223.25
GB/T223.26
GB/T223.43
GB/T223.49 MA
GB/T223.54
GB/T223.58 
GB/T223.59
GB/T223.60
GB/T223.61
GB/T223.62
GB/T223.63
GB/T223.64
GB/T223.66 
  
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  468KB
Tile in English:  Quality structural steel cold drawn bars

Full Text Information

Related

Top 10

New 10

PC Version