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GB/T 38347-2019 PDF in English


GB/T 38347-2019 (GB/T38347-2019, GBT 38347-2019, GBT38347-2019)
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GB/T 38347-2019English150 Add to Cart 0-9 seconds. Auto-delivery. Hot-rolled wire rod of ultra-low carbon steel with high boron Valid
Standards related to (historical): GB/T 38347-2019
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GB/T 38347-2019: PDF in English (GBT 38347-2019)

GB/T 38347-2019 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.60 H 49 Hot-rolled Wire Rod of Ultra-low Carbon Steel with High Boron ISSUED ON: DECEMBER 10, 2019 IMPLEMENTED ON: JULY 1, 2020 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative References ... 4  3 Designation Representation Method ... 6  4 Order Content ... 6  5 Dimensions, Appearances, Weights and Allowable Deviations ... 7  6 Technical Requirements ... 7  7 Test Methods ... 9  8 Inspection Rules ... 10  9 Packaging, Marking and Quality Certificate ... 11  Appendix A (informative) Purposes of Different Designations of Ultra-low Carbon Steel with High Boron ... 12  Hot-rolled Wire Rod of Ultra-low Carbon Steel with High Boron 1 Scope This Standard stipulates the designation representation method, order content, dimensions, appearances, weights, allowable deviations, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of hot-rolled wire rod of ultra-low carbon steel with high boron. This Standard is applicable to hot-rolled wire rod of ultra-low carbon steel with high boron with the diameter of 3 mm ~ 60 mm (hereinafter referred to as wire rod). 2 Normative References The following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 222 Permissible Tolerances for Chemical Composition of Steel Products GB/T 223.4 Alloyed Steel - Determination of Manganese Content - Potentiometric or Visual Titration Method GB/T 223.5 Steel and Iron - Determination of Acid-soluble Silicon and Total Silicon Content - Reduced Molybdosilicate Spectrophotometric Method GB/T 223.9 Iron Steel and Alloy - Determination of Aluminum Content - Chrome Azurol S Photometric Method GB/T 223.11 Iron, Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method GB/T 223.37 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 223.59 Iron, Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method GB/T 223.63 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium (potassium) Periodate Photometric Method for the Determination of Manganese Conductimetric Method after Fusion in a Current of Inert Gas GB/T 20125 Low-alloy Steel - Determination of Multi-element Contents - Inductively Coupled Plasma Atomic Emission Spectrometric Method GB/T 20126 Unalloyed Steel - Determination of Low Carbon Content - Part 2: Infrared Absorption Method after Combustion in an Induction Furnace (with preheating) GB/T 22368 Low-alloy Steel - Determination of Multi-element Contents - Glow Discharge Optical Emission Spectrometry (routine method) YB/T 081 Rule for Rounding Off of Numerical Values and Judgement of Testing Values for Technical Standards of Metallurgy 3 Designation Representation Method The designations of wire rod are: CH1B, CH3B, CH5B, BP05, BP05D. See the specific meaning below: CH1B: ---C represents “carbon”; ---H represents the initials of “high”; ---B represents “boron”; ---1 represents one in ten thousand of carbon content. BP05D: ---BP represents the initials of “blasting”; ---05 represents five in ten thousand of carbon content; ---D represents the initials of “electric”. Please refer to Appendix A for the purposes of each designation of steel. 4 Order Content Order content, which shall be explicitly indicated in the contract, includes: a) Serial No. of this Standard; b) Product name; ......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.