Standard No.:	QC/T 326-2013
English Name:	Coding rules for automotive standardized parts
Chinese Name:	汽车标准件产品编号规则
Chinese Classification:	T50    Special automobiles in general
Professional Classification:	QC    Professional Standard - Automobile
Issued by:	Ministry of Industry and Information Technology
Issued on:	2013-10-17
Implemented on:	2014-3-1
Status:	to be superseded
Superseded by:	QC/T 326-2024 QC/T 326-2025 Numbering rules for automotive standardized parts
Superseded on:	2025-11-1
Superseding:	QC/T 326-1999 Coding rules for automotive standardized parts
Language:	English
File Format:	PDF
Word Count:	15000 words
Price(USD):	180.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the coding rules for automotive standardized parts. This standard is applicable to such fields as development, design, production, procurement and circulation of products of enterprises of automobiles, motorcycles as well as parts and components. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 97.1 Plain washers - Product grade A (GB/T 97.1-2002, eqv ISO 7089: 2000) GB/T 97.4 Plain washers for screw and washer assemblies (GB/T 97.4-2002, eqv ISO 10673:1998) GB/T 699 Quality carbon structure steel GB/T 848 Plain washers - Small series - Product grade A (GB/T 848-2002, eqv ISO 7092: 2000) GB/T 3098.1 Mechanical properties of fasteners - Bolts, screws and studs (GB/T 3098.1-2010, ISO 898-1: 2009, MOD) GB/T 3098.2 Mechanical properties of fasteners - Nuts - Coarse thread (GB/T 3098. 2-2000, idt ISO 898-2: 1992) GB/T 3098.3 Mechanical properties of fasteners - Set screws (GB/T 3098.3-2000, idt ISO 898-5: 1998) GB/T 3098.4 Mechanical properties of fasteners - Nuts - Fine pitch thread (GB/T 3098.4-2000, idt ISO 898-6: 1994) GB/T 3098.6 Mechanical properties of fasteners - Bolts, screws and studs made of stainless-steel (GB/T 3098.6-2000, idt ISO 3506-1: 1997) GB/T 3098.9 Mechanical properties of fasteners - Prevailing torque type steel nuts (GB/T 3098.9-2010, ISO 2320: 2008, IDT) GB/T 3098.15 Mechanical properties of fasteners - Nuts made of stainless-steel (GB/T 3098.15-2000, idt ISO 3506-2: 1997) GB/T 3098.19 Mechanical properties of fasteners - Blind rivets with break pull mandrel GB/T 3195 Aluminum and aluminum alloy wires for riveting purpose GB/T 5231 Wrought copper and copper alloys chemical composition limits and forms of wrought products GB/T 6478 Steels for cold heading and cold extruding (GB/T 6478-2001, neq ISO 4954: 1993) GB/T 8815 Plasticized polyvinyl chloride (PVC) compounds for wire and cable HG/T 2196 Standard classification system for rubber products in automotive application QC/T 625 Metallic coatings and conversion coatings for automobile 3 Code composition The code of an automotive standardized part is composed of 7 parts, as detailed below successively: ——Part 1: characteristic code of automotive standardized part; ——Part 2: variety code; ——Part 3: change code; ——Part 4: dimension code; ——Part 5: mechanical property or material code; ——Part 6: surface treatment code; ——Part 7: subtype code.

Foreword i Introduction ii 1 Scope 2 Normative references 3 Code composition 4 Code expression and meaning 5 Coding examples Annex A (Normative) Coding examples for automotive standardized parts Annex B (Informative) System of automotive standardized parts