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GB/T 26655-2022Compacted(vermicular) graphite iron castings (English PDF)

蠕墨铸铁件

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

March 9, 2022

Implementation date

October 1, 2022

Scope

GB/T 26655-2022 is the English-translated version of 蠕墨铸铁件.

GB/T 26655-2022 is the Chinese standard "Compacted(vermicular) graphite iron castings". Its scope clause reads: This document specifies the grades, ordering information, production method and chemical composition, technical requirements, test methods, inspection rules, Identification, quality certificate, rust prevention, packaging and storage.

This document applies to vermicular graphite iron castings cast in a sand mold or a mold with a thermal conductivity comparable to that of a sand mold. Compacted graphite cast produced by other casting methods Iron parts can be used for reference.

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Document preview — GB/T 26655-2022

National Standard of the People's Republic of China

Classification: J 31

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Grade
5 Ordering Information
6 Production method and chemical composition
7 Technical requirements
8 Test methods
9 Inspection Rules
10 Identification, quality certificate, rust prevention, packaging and storage
Appendix A (informative) Comparison table of structure numbers between this document and ISO 16112.201
Appendix B (informative) Technical differences between this document and ISO 16112.2017 and their reasons
Appendix C (informative) Comparison of vermicular graphite iron casting grades with similar grades in other standards
Appendix D (informative) Performance characteristics and typical applications of compacted graphite cast iron
Appendix E (Informative) Supplementary Information on the Properties of Compacted Graphite Iron
Appendix F (informative) Determination of nodularity of compacted graphite cast iron
Appendix G (Informative) Influence of Process Factors on Machinability of Compacted Graphite Cast Iron

1 Scope

This document specifies the grades, ordering information, production method and chemical composition, technical requirements, test methods, inspection rules,

Identification, quality certificate, rust prevention, packaging and storage.

Iron parts can be used for reference.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 223.3 Methods for chemical analysis of iron, steel and alloys - Diantipyrine methane phosphomolybdic acid gravimetric method for the determination of phosphorus content

GB/T 223.4 Potentiometric titration or visual titration method for determination of manganese content in iron, steel and alloys

GB/T 223.60 Chemical analysis methods of iron, steel and alloys Determination of silicon content by perchloric acid dehydration gravimetric method

GB/T 223.72 Determination of Sulfur Content of Iron, Steel and Alloy Gravimetric Method

GB/T 223.86 Determination of total carbon content of iron, steel and alloys by infrared absorption method after induction furnace combustion

GB/T 228.1 Tensile test of metallic materials Part 1.Test method at room temperature (GB/T 228.1-2010, ISO 6892-1.

2009, MOD)

GB/T 231.1 Brinell hardness test of metallic materials Part 1.Test method (GB/T 231.1-2018, ISO 6506-1.

2014, MOD)

GB/T 4336 Determination of multi-element content of carbon steel and medium and low alloy steel spark discharge atomic emission spectrometry (conventional method)

GB/T 5611 Casting Terminology

GB/T 5612 Cast iron grades representation method (GB/T 5612-2018, ISO /T R15931.2004, MOD)

GB/T 5677 Radiographic Inspection of Castings

GB/T 6060.1 Surface Roughness Comparison Sample Part 1.Casting Surface

GB/T 6414 Casting Dimensional Tolerance, Geometric Tolerance and Machining Allowance

GB/T 9443 Penetration testing of steel and iron castings

GB/T 9444 Magnetic particle inspection of steel and iron castings

GB/T 11351 Casting Weight Tolerance

GB/T 15056 Evaluation method of casting surface roughness

GB/T 20123 Determination of total carbon and sulfur content of iron and steel by infrared absorption method after high-frequency induction furnace combustion (conventional method)

GB/T 24234 Determination of multi-element content of cast iron Spark discharge atomic emission spectrometry (conventional method)

GB/T 26656 Metallographic examination of vermicular graphite cast iron

GB/T 34904 Ultrasonic testing of ductile iron castings

GB/T 38441 Pig iron and cast iron Determination of chromium, copper, magnesium, manganese, molybdenum, nickel, phosphorus, tin, titanium, vanadium and silicon inductively coupled plasma sub-emission spectroscopy

GB/T 26648 | GB/T 26649 | GB/T 26650 | GB/T 26653 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 51 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 6892 · ISO 6506

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