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QC/T 598-2022 PDF English

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QC/T 598-2022: Bearing face projection weld bolts
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QC/T 598: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] deliveryName of Chinese StandardStatus
QC/T 598-2022English110 Add to Cart 0-9 seconds. Auto-delivery Bearing face projection weld bolts Valid
QC/T 598-1999English359 Add to Cart 3 days (Order of the surface projection welding bolts) Obsolete

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QC/T 598-2022: Bearing face projection weld bolts

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QCT598-2022
QC AUTOMOBILE INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040 CCS T 33 Replacing QC/T 598-1999 Bearing face projection weld bolts ISSUED ON: APRIL 08, 2022 IMPLEMENTED ON: OCTOBER 01, 2022 Issued by: Ministry of Industry and Information Technology of PRC

Table of Contents

Foreword ... 6 1 Scope ... 7 2 Normative references ... 7 3 Terms and definitions ... 8 4 Types and sizes ... 8 5 Technical conditions ... 12 6 Product number ... 12

Foreword

This document was drafted in accordance with the provisions of GB/T 1.1-2020 "Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents". This document replaces QC/T 598-1999 "Bolt with projection welding on the bearing face". Compared with QC/T 598-1999, the main technical changes are as follows: - ADD fine thread specifications (see Table 1 and Table 2); - MODIFY α, h, K, r values, matching hole diameter accuracy (see Table 1 and Table 2); - MODIFY the requirements on thread tolerances (see Table 3); - ADD the nominal values of d1, d2, d3, e, f, h, K (see Table 1 and Table 2); - ADD the requirements for plate thickness dimensions (see Table 1 and Table 2); - ADD the grade 8.8 mechanical performance grade of Type A and Type C projection weld bolts (see Table 3). This document was proposed by AND shall be under the jurisdiction of the National Automotive Standardization Technical Committee (SAC/TC 114). Drafting organizations of this document: Automotive Engineering Research Institute of Guangzhou Automobile Group Co., Ltd. The main drafters of this document: Zhao Ju, Wu Kunpei, Wang Pan, Kang Xun. This standard replaces the standard previously issued as follows: - It was first published as QC/T 598-1999 in 1999; - This is the first revision. Bearing face projection weld bolts

1 Scope

This document specifies the types, dimensions, and technical conditions of bearing face projection weld bolts for automobiles. This document is applicable to projection welding bolts of three types of bearing face welding joints of type A and C, which have thread specifications of M4 ~ M12/M12 x 1.25, as well type B, which has specification of M5 ~ M10/M10 x 1.25.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, for dated references, only the version corresponding to the date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document. GB/T 2 Fasteners - Ends of parts with external thread GB/T 90.1-2002 Fasteners - Acceptance inspection GB/T 90.2-2002 Fasteners - Marking and packaging GB/T 196 General purpose metric screw threads - Basic dimensions GB/T 197 General purpose metric screw threads - Tolerances GB/T 3098.1-2010 Mechanical properties of fasteners - Bolts, screws and studs GB/T 3103.1-2002 Essential oils and aromatic extracts - Determination of residual benzene content GB/T 5779.1-2000 Fasteners - Surface discontinuities - Bolts, screws and studs for general requirements QC/T 326 Coding rules for automotive standardized parts QC/T 625 Metallic coatings and conversion coatings for automobiles ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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