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QC/T 544-2025 English PDF

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Q: Should I purchase the latest version QC/T 544-2025?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version QC/T 544-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
QC/T 544-2025: Camshaft of automobile engine
Status: Valid

QC/T 544: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
QC/T 544-2025	359	Add to Cart	4 days	Camshaft of automobile engine	Valid
QC/T 544-2000	459	Add to Cart	3 days	Car engine camshaft technology conditions
QC/T 544-1999	RFQ	ASK	3 days	(Chinese Industry Standard)	Obsolete

Basic data

Standard ID: QC/T 544-2025 (QC/T544-2025)
Description (Translated English): Camshaft of automobile engine
Sector / Industry: Automobile & Vehicle Industry Standard (Recommended)
Classification of Chinese Standard: T13
Classification of International Standard: 43.060.01
Word Count Estimation: 18,187
Date of Issue: 2025-05-09
Date of Implementation: 2025-11-01
Older Standard (superseded by this standard): QC/T 544-2000
Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China

QC/T 544-2025: Camshaft of automobile engine

---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/QCT544-2025
ICS 43.060.01CCS T 13 Automobile Industry Standards of the People's Republic of China Released on May 9, 2025 2025-11-01Implementation Ministry of Industry and Information Technology of the People's Republic of China issued Automobile engine camshaft Replaces QC/T 544-2000

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Classification and structural type 3 5 Technical Requirements 4 6 Test methods 9 7 Inspection Rules 11 8 Marking, packaging, transportation, storage 12 Appendix A (Informative) Torque and load reference values 13 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces QC/T 544-2000 "Technical Specifications for Camshafts of Automobile Engines". Compared with QC/T 544-2000, in addition to the structural adjustment Besides the editorial changes, the main technical changes are as follows. --The scope of application has been modified (see Chapter 1); --Added terms and definitions (see Chapter 3); --Added classification and structural types (see Chapter 4); --Added requirements for the material of assembled camshafts and other sub-components (see 5.1.2 and 5.1.3); --Added the provisions of "torque and axial load" (see 5.2); -- Changed the description of "Aged Cold Shock Camshaft" and "Aged Hardenable Camshaft", and deleted "Aged Surface Remelted Camshaft" "Axle" provisions (see 5.3.1.1, 3.3.1 of the.2000 edition); --Added relevant provisions on "heat treatment and hardness" of modular camshafts (see 5.3.2); -- Deleted "Provisions for the metallographic structure of the surface remelted area" (see 3.4.1.3 of the.2000 edition); --Added relevant provisions on the metallographic structure of modular camshafts (see 5.4.2); -- Added the provisions on "timing pin hole diameter" in "dimensional tolerance" (see 5.5.1); -- Changed the wording of “shape and position tolerance” (see 5.6, 3.6 of the.2000 edition); --Changed the description and index parameters of "Cam profile lift deviation variation" (see 5.6.6, 3.6.5 of the.2000 edition); -- The requirement of "accuracy of gears on the camshaft used to drive the oil pump or distributor" has been deleted (see 3.7 and 4.9 of the.2000 edition); --Changed the surface roughness requirements and deleted the roughness requirements for camshafts after surface phosphating and sulfurization treatment (see 5.7,.2000 3.8 of the.2012 edition); -- Changed the term "waviness" in "surface quality" to "chatter" (see 5.8.3, 3.9.3 of the.2000 edition); -- Added the provisions for "scratches on non-working journals of assembled camshafts" (see 5.8.4); --Changed the provisions on "burn" (see 5.11, 3.9.2 of the.2000 edition); --Added the provisions of "cleanliness", "residual stress" and "remanent magnetism" (see 5.10, 5.12 and 5.13); -- Changed the provisions of "Test Methods" (see Chapter 6, Chapter 4 of the.2000 edition); --The provisions of “Inspection Rules” have been changed (see Chapter 7, Chapter 5 of the.2000 edition). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed and coordinated by the National Technical Committee for Standardization of Automotive Products (SAC/TC 114). This document was drafted by. China Automotive Chengdu Parts Co., Ltd., FAW Jiefang Automobile Co., Ltd., Dongfeng Motor Group Co., Ltd., Sichuan Da College, Sichuan Machinery Research and Design Institute (Group) Co., Ltd., Chongqing Changan Automobile Co., Ltd., Guangxi Yuchai Machinery Co., Ltd., Pan Asia Technical Automotive Center Co., Ltd. and Sichuan Yingang Yitong Cam Technology Co., Ltd. The main drafters of this document are. Yu Chao, Jin Cheng, Zhang Yuntian, Yang Liling, Wang Jie, Song Bin, Zheng Caihua, Lin Fei, He Haizhu, Su Huailin, Lan Bo, Peng Kai, Suga Kunlin, Chen Yinrui, Liu Xianhong, and Wang Lixin. The previous versions of this document and the documents it replaces are as follows. --First released in 1985 as JB 3900-1985; --Adjusted (renumbered) to QC/T 544-1999 in.1999; --First revised in.2000 as QC/T 544-2000; --This is the second revision. Automobile engine camshaft

1 Scope

This document specifies the classification and structural type, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of automobile engine camshafts. This document applies to integral camshafts and mechanical interference joint combined camshafts (hereinafter referred to as "camshafts") for automobile engines.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document. document. GB/T 223.58 Methods for chemical analysis of iron, steel and alloys - Sodium arsenite-sodium nitrite titration method for the determination of manganese content GB/T 223.60 Iron, steel and alloys - Determination of silicon content - Gravimetric method GB/T 223.61 Methods for chemical analysis of iron, steel and alloys - Ammonium phosphomolybdate volumetric method for the determination of phosphorus GB/T 223.83 Iron, steel and alloys - Determination of high sulfur content - Infrared absorption method after combustion in an induction furnace GB/T 223.85 Iron, steel and alloys - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace GB/T 223.86 Iron, steel and alloys - Determination of total carbon content - Infrared absorption method after combustion in an induction furnace GB/T 224 Determination of the depth of decarburization of steel GB/T 226 Acid etching method for macrostructure and defects of steel GB/T 228.1 Tensile tests on metallic materials - Part 1.Room temperature test methods GB/T 230.1 Rockwell hardness test for metallic materials Part 1.Test method GB/T 231.1 Metallic materials Brinell hardness test Part 1.Test method GB/T 699 High-quality carbon structural steel GB/T 700 Carbon Structural Steel GB/T 1182 Geometrical Product Specifications (GPS) Geometric Tolerances of Shape, Orientation, Position and Runout GB/T 1184 Tolerances on shape and position without tolerance value GB/T 1348 Ductile iron castings GB/T 1591 Low alloy high strength structural steel GB/T 1800.1 Geometrical Product Specifications (GPS) - ISO code system for linear dimension tolerances - Part 1.Tolerances, deviations and The basis of cooperation GB/T 1804 General tolerances Tolerances for linear and angular dimensions without tolerance indications GB/T 1958 Geometrical Product Specifications (GPS) Geometric Tolerance Testing and Verification GB/T 1979 Macrostructure defect rating diagram for structural steel GB/T 2828.1 Sampling procedures for inspection by attributes Part 1.Sampling plans for batch inspection based on acceptance quality limit (AQL) GB/T 2829 Periodic Inspection Attribute Sampling Procedures and Tables (Applicable to Inspection of Process Stability) GB/T 3077 Alloy Structural Steel GB/T 3821 Cleanliness limits and determination methods for small and medium power internal combustion engines GB/T 5617 Determination of effective hardened case depth of steel after induction hardening or flame hardening GB/T 6394 Determination of average grain size of metals ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of QC/T 544-2025_English be delivered?

Answer: Upon your order, we will start to translate QC/T 544-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of QC/T 544-2025_English with my colleagues?

Answer: Yes. The purchased PDF of QC/T 544-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version QC/T 544-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version QC/T 544-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.