Standard No.:	GB/T 14975-2012
English Name:	Seamless stainless steel tubes for structure
Chinese Name:	结构用不锈钢无缝钢管
Chinese Classification:	H48    Steel tube and cast iron pipe
Professional Classification:	GB    National Standard
ICS Classification:	77.140.75 77.140.75    Steel pipes and tubes for specific use 77.140.75
Issued by:	AQSIQ,SAC
Issued on:	2012-11-5
Implemented on:	2013-5-1
Status:	valid
Superseding:	GB/T 14975-2002 Stainless steel seamless tubes for structures
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	150.0
Delivery:	via email in 1 business day

1 Scope This standard specifies classification and code, order contents, size, appearance and weight, technical requirements, test methods, inspection rules as well as packaging, marking and quality certificate of seamless stainless steel tubes for structure. This standard is applicable to seamless stainless steel tubes (hereinafter referred to as steel tubes) for general structure or mechanical structure. 2 Normative References The following documents are essential for application of this standard. For dated references, only the dated editions apply to this standard. For undated references, their latest edition (including all amendments) applies. GB/T 222 Permissible Tolerances for Chemical Composition of Steel Products GB/T 223.9 Iron Steel and Alloy - Determination of Aluminium Content - Chrom Azurol S Photometric Method GB/T 223.11 Iron Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method GB/T 223.16 Methods for Chemical Analysis of Iron, Steel and Alloy - The Chromotropic Acid Photometric Method for the Determination of Titanium Content GB/T 223.18 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Thiosulfate Separation Iodimetric Method for the Determination of Copper Content GB/T 223.23 Iron Steel and Alloy - Determination of Nickel Content - The Dimethylglyoxime Spectrophotometric Method GB/T 223.25 Methods for Chemical Analysis of Iron, Steel and Alloy - The Dimethylglyoxime Gravimetric Method for the Determination of Nickel Content GB/T 223.28 Methods for Chemical Analysis of Iron Steel and Alloy - The α-denzoinoxime Gravimetric Method for the Determination of Molybdenum Content GB/T 223.36 Methods for Chemical Analysis of Iron, Steel and Alloy - The Neutral Titration Method for the Determination of Nitrogen Content after Distillation Separation GB/T 223.40 Iron Steel and Alloy - Determination of Niobium Content by the Sulphochlorophenol S Spectrophotometric Method GB/T 223.60 Methods for Chemical Analysis of Iron, Steel and Alloy - The Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content GB/T 223.62 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 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium (Potassium) Periodate Photometric Method for the Determination of Manganese Content GB/T 223.68 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 Iron, Steel and Alloy - Determination of Carbon Contents - Gas-volumetric Method after Combustion in the Pipe Furnace GB/T 223.84 Steel and Iron - Determination of Titanium Content - Diantipyrylmethane Spectrophotometric Method

Foreword I 1 Scope 2 Normative References 3 Classification and Code 4 Order Contents 5 Size, Appearance and Weight 6 Technical Requirements 7 Test Methods 8 Inspection Rules 9 Packaging, Marking and Quality Certificate Appendix A (Informative) Designation Comparison Table of Stainless Steel

* GB/T 222-2006 Permissible Tolerances for Chemical Composition of Steel Products
* GB/T 223.9-2008 Iron steel and alloy - Determination of aluminium content - Chrom azurol S photometric method
* GB/T 223.11-2008 Iron, Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method
* 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 223.18-1994 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Thiosulfate Separation Iodimetric Method for the Determination of Copper Content
* GB/T 223.23-2008 Iron, Steel and Alloy-Determination of Nickel Content - The Dimethylglyoxime Spectrophotometric Method
* GB/T 223.25-1994 Methods for chemical analysis of iron, steel and alloy.The dimethylglyoxime gravimetric method for the determination of nickel content
* GB/T 223.28-1989
* 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 223.40-2007 Iron, Steel and Alloy - Determination of Niobium Content by the Sulphochlorophenol S 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 223.62-1988 Methods for chemical analysis of iron, steel and alloy; The butyl acetate extraction photometric method for the determination of phosphorus content
* GB/T 223.63-1988
* 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 223.84-2009 Steel and iron—Determination of titanium content—Diantipyrylmethane spectrophotometric method
* GB/T 223.85-2009 Steel and iron—Determination of sulfur content—Infrared absorption method after combustion in an induction furnace
* GB/T 223.86-2009 Steel and iron—Determination of total carbon content—Infrared absorption method after combustion in an induction furnace
* GB/T 228.1-2010 Metallic materials - Tensile testing - Part 1 : Method of test at room temperature
* GB/T 230.1-2009 Metallic materials - Rockwell hardness test - Part 1: Test method(scales A, B, C, D, E, F, G, H, K, N, T)
* GB/T 231.1-2009 Metallic materials—Brinell hardness test—Part 1:Test method
* GB/T 241-2007 Metal materials—Tube—Hydrostatic pressure test
* GB/T 242-2007 Metal materials – Tube – Drift-expending test
* GB/T 246-2007 Metal materials – Tube - Flattening test
* GB/T 2102-2006 Acceptance packing marking and quality certification of steel pipe
* GB/T 2975-1998 Steel and Steel Products - Location and Preparation of Test Pieces for Mechanical Testing
* GB/T 4334-2008 Corrosion of metals and alloys - Test methods for intergranular corrosion of stainless steels
* GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method
* GB/T 5777-2008 Seamless Steel Pipe and Tubing Methods for Ultrasonic Testing
* GB/T 7735-2004 Steel tubes - The inspection Method On Eddy Current Test
* GB/T 11170-2008 Stainless steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (Routine method)
* GB/T 17395-2008 Dimensions, shapes, masses and tolerances of seamless steel tubes
* GB/T 20066-2006 Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition
* GB/T 20123-2006 Steel and iron—Determination of total carbon and sulfur content Infrared absorption method after combustion in an induction furnace (routine method)
* GB/T 20124-2006 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas
* GB/T 20878-2007 Stainless and heat-resisting steels—Designation and chemical composition