GB/T 2527-2008Cemented carbide inserts for mining and oil-field bits (English PDF)
矿山、油田钻头用硬质合金齿
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 9, 2008
Implementation date
December 1, 2008
Scope
GB/T 2527-2008 is the English-translated version of 矿山、油田钻头用硬质合金齿.
GB/T 2527-2008 is the Chinese standard "Cemented carbide inserts for mining and oil-field bits". Its scope clause reads: This standard specifies the requirements of the cemented carbide teeth for mines and oilfields, inspection rules, test methods, marking, packaging, transportation, storage and Order (or contract) content.
This standard applies to the use of the mine drilling and oil extraction of the cone bit, the use of deep hole drill bit with a carbide drill bit rough. Its clauses include normative reference documents; request.
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Document preview — GB/T 2527-2008
National Standard of the People's Republic of China
- ICS
- 77.160
- Classification
- H 72
- Replacing
- GB/T 2527-1989
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 normative reference documents
- 3 request
- 3.1 Product Classification
- 3.2 Product model indicates rule
- 3.3 Chemical composition
1 Scope
This standard specifies the requirements of the cemented carbide teeth for mines and oilfields, inspection rules, test methods, marking, packaging, transportation, storage and
Order (or contract) content.
This standard applies to the use of the mine drilling and oil extraction of the cone bit, the use of deep hole drill bit with a carbide drill bit rough.
2 normative reference documents
The terms of the following documents are incorporated by reference in this standard and are the terms of this standard. Any reference to the date of the document, (Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard
Whether the latest version of these files can be used, and the most recent version of the referenced document, which is not dated, applies to this standard.
Test rules and test methods for cemented carbide products GB/T GB/T 5243 Carbide products are marked, packaged, transported and stored
3 request
3.1 Product Classification
The product is divided into CB (side wedge), CP (flat top tooth), CQ (spherical tooth), CQ-1 (double chamfer spherical), CS (spoon)
CS-1 (Cylindrical), CX (wedge-shaped teeth), CX-1 (concave wedge-shaped teeth), CZ (conical teeth), CZ-1 (spherical conical teeth) ten types.
3.2 Product model indicates rule
3.2.1
After the type code (CB, CP, CQ, CS, CX, CZ), add two digits of diameter (less than two integers plus "0" (Less than two integers in front of the plus "0" fill, not an integer when the removal of the integer
Decimal).
3.2.2
When the main parameters (diameter, height) of the carbide teeth are the same and other parameters (such as angles) are different, then the model is followed by A
Show the difference.
3.2.3
The new type is shown in the model suffix -1.
3.2.4
Model See the example.
Example.
3.3 Chemical composition
The chemical composition of the product is determined by consultation between the supplier and the purchaser.
GB/T 11101-2020 | GB/T 6883-2017 | GB/T 3462-2017 | GB/T 2080-2026 | GB/T 6887-2019 | GB/T 2081-2018 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 2527
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 2527-2008 | Cemented carbide inserts for mining and oil-field bits | current edition | Current |
| GB/T 2527-1989 | Cemented carbide inserts for mining and oil-field bits | previous edition | Superseded |
This page sells the current edition, GB/T 2527-2008. Earlier editions are listed for reference only.
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