GB/T 4697-2008
Hot-rolled U-type steel for mine timbering (English Version)

Standard No.
GB/T 4697-2008
Language
Chinese, Available in English version
Release Date
2008
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status
 2018-04
Replace By
GB/T 4697-2017
Latest
GB/T 4697-2017
Replace
GB/T 4697-1991
Scope
This standard specifies the order content, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of hot-rolled U-shaped steel for mine roadway support. This standard applies to the manufacture of hot-rolled U-shaped steel for mine roadway supports.

GB/T 4697-2008 Referenced Document

  • GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
  • GB/T 2101 General requirment of acceptance, packaging, marking and certification for section steel*， 2017-07-31 Update
  • GB/T 222 Permissible tolerances for chemical composition of steel products
  • GB/T 223.11 Determination of chromium content in iron, steel and alloy by visual titration or potentiometric titration*， 2009-05-01 Update
  • GB/T 223.12 Methods for chemical analysis of iron,steel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
  • GB/T 223.14 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 223.23 Iron,,steel and alloy.Determination of nickel content.The dimethylglyoxime spectrophotometric method
  • GB/T 223.36 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 Iron, steel and alloy—Determination of nitrogen content—Indophenol blue spectrophotometric method after distillation separation*， 2020-06-02 Update
  • GB/T 223.5 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate spectrophotometric method*， 2008-08-19 Update
  • GB/T 223.53 Methods for chemical analysis of iron,steel and alloy--The flame atomic absorption spectrophotometric method for the determination of copper content
  • GB/T 223.54 Iron, steel and alloy—Determination of nickel content—Flame atomic absorption spectrometric method*， 2022-07-11 Update
  • GB/T 223.59 Iron,steel and alloy.Determination of phosphorus content.Bismuth phosphomolybdate blue spectrophotometic method and antimony phosphomolybdate blue spectruophotometric method*， 2008-08-19 Update
  • GB/T 223.63 Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method*， 2022-07-11 Update
  • 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 223.72 Iron,steel and alloy.Determination of sulfur content.Gravimetric method
  • GB/T 228 Metallic materials--Tensile testing at ambient temperature
  • GB/T 229 Metallic materials—Charpy pendulum impact test method*， 2020-09-29 Update
  • GB/T 232 Metallic materials - Bend test methods*， 2024-03-15 Update
  • GB/T 2975 Steel and steel products.Location and preparation of samples and test pieces for mechanical testing*， 2018-05-14 Update
  • GB/T 4336 Determination of multi-element content in carbon steel and medium and low alloy steel Spark discharge atomic emission spectrometry (conventional method) Amendment No. 1
  • GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 4697-2008 history

Hot-rolled U-type steel for mine timbering


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