Standard No.:	GB/T 6725-2002
English Name:	Cold Formed Steel Sections
Chinese Name:	冷弯型钢
Professional Classification:	GB    National Standard
Issued by:	General Administration of Quality Supervision, Inspection and Quarantine
Issued on:	2002-07-15
Implemented on:	2002-12-1
Status:	superseded
Superseded by:	GB/T 6725-2008 Cold forming steel sections
Superseded on:	2009-4-1
Superseding:	GB/T 6725-1992 冷弯型钢技术条件
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	304.0
Delivery:	via email in 1 business day

This standard specifies the contents related to scope, specification, testing method, test rules, packing, label and certification of quality of cold formed steel sections. This standard is applicable to cold-roll of cold-working or cold formed steel sections produced by hot continuously rolled steel plate and steel strips on continuity cold-roll-forming machine unit. This standard is not applicable to formed steel which is produced in the method of dragging, stamping and bending, and so on.

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* GB/T 223.3-1998
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* GB/T 223.10-1991
* GB/T 223.11-2008 Iron, Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method
* GB/T 223.12-1999
* GB/T 223.14-2000 Methods for Chemical Analysis of Iron, Steel and Alloy - The N-Benzoy-N-Phenylhydroxylamine Extraction Photometric Method for the Determination of Vanadium Content
* GB/T 223.16-1991 Methods for Chemical Analysis of Iron, Steel and Alloy - The Chromotropic Acid Photometric Method for the Determination of Titaninm Content
* GB/T 223.19-1989
* GB/T 223.23-2008 Iron, Steel and Alloy-Determination of Nickel Content - The Dimethylglyoxime Spectrophotometric Method
* GB/T 223.24-1994 Methods for chemical analysis of iron, steel and alloy.The extraction seperation-The dimethylglyoxime spectrophotometric method for the determination of nickel content
* GB/T 223.36-1994 Methods for chemical analysis of iron, steel and alloy The neutral titration method for the determinaion of nitrogen content after distillation separation
* GB/T 223.37-1989 Methods for Chemical Analysis of Iron, Steel and Alloy - the Indophenol Blue Photometric Method for the Determination of Nitrogen Content after Distillation Separation
* GB/T 223.49-1994 Methods for chemical analysis of iron, steel and alloy Extraction separation-chlorophosphonazo mA spectrophotometric method for the determination of the total rare earth content
* GB/T 223.53-1987
* GB/T 223.54-1987
* GB/T 223.58-1987
* GB/T 223.59-2008 Iron, Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method
* GB/T 223.60-1997 Methods for Chemical Analysis of Iron, Steel and Alloy - The Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content
* GB/T 223.61-1988 Methods for chemical analysis of iron, steel and alloy; The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
* GB/T 223.62-1988 Methods for chemical analysis of iron, steel and alloy; The butyl acetate extraction photometric method for the determination of phosphorus content
* GB/T 223.63-1998
* GB/T 223.64-2008 Iron, Steel and Alloy - Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method
* GB/T 223.67-2008 Iron, Steel and Alloy - Determination of Sulfur Content - Methylene Blue Spectrophotometric Method
* GB/T 223.68-1997 Methods for Chemical Analysis of Iron, Steel and Alloy - The Potassium Iodate Titration Method after Combustion in the Pipe Furnace for the Determination of Sulfur Content
* GB/T 223.69-2008 Iron, Steel and Alloy-Determination of Carbon Contents- Gas-volumetric Method after Combustion in the Pipe Furnace
* GB/T 223.71-1997 Methods for Chemical Analysis of Iron, Steel and Alloy the Gravimetric Method after Combustion in the Pipe Furnace for the Determination of Carbon Content
* GB/T 223.72-2008 Iron, Steel and Alloy - Determination of Sulfur Content - Gravimetric Method
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* GB/T 2975-1998 Steel and Steel Products - Location and Preparation of Test Pieces for Mechanical Testing
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* GB/T 4239-1991
* GB/T 17505-1998