GB/T 38987-2020 Active National standards

GB/T 38987-2020 Cemented carbide rods with helical coolant holes

Publish Date: 2020-07-21 Implement Date: 2021-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 38987-2020

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Powder metallurgy materials and products

ICS Name: Powder metallurgy

Publish Date: 2020-07-21

Implement Date: 2021-06-01

Pages: 15 pages

Scope

This standard specifies the classification and schematic diagrams, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificates, and the contents of purchase orders (or contracts) for hard alloy spiral hole rods. This standard applies to hard alloy spiral hole rods (hereinafter referred to as "spiral hole rods") used in the processing of drilling tools with internal coolant holes.

Development Information

Word Count: 28 Thousand words Pages: 15 pages

Referenced Standards

GB/T 1800.2-1998 Limits and fits—Bases—Part 2:Basic rules of tolerances, deviations and fits GB/T 1800.2-2009 Geometrical Product Specifications (GPS)—Limits and fits—Part 2:Tables of standard tolerance grades and limit deviations for holes and shafts GB/T 1800.2-2020 Geometrical product specifications(GPS)—ISO code system for tolerances on linear sizes—Part 2:Tables of standard tolerance classes and limit deviations for holes and shafts GB/T 5242-1985 Check rules and test methods of cemented carbide products GB/T 5242-2006 Check rules and test methods of cemented carbide products GB/T 5242-2017 Inspection rules and test methods of cemented carbide products GB/T 5243-1985 Marking, packing, transport and storage of cemented carbide products GB/T 5243-2006 Marking,packing,transport and storage of cemented carbide products GB/T 5243-2020 Marking,packing,transport and storage of cemented carbide products

Related Standards

GB/T 3879-1983 Replaced

GB/T 3879-1983 The material blanks of steel bonded carbide

Publish Date: 1983-10-10

GB/T 4309-1984 Replaced

GB/T 4309-1984 Classification and designation for powder metallurgy materials

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GB/T 5124.1-1985 Replaced

GB/T 5124.1-1985 Methods for chemical analysis of hardmetals—The gravimetric method for the determination of total carbon content

Publish Date: 1985-04-24

GB/T 5124.2-1985 Replaced

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Publish Date: 1985-04-24

GB/T 5124.3-1985 Replaced

GB/T 5124.3-1985 Methods for chemical analysis of hardmetals—The potentiometric method for the determination of cobalt content

Publish Date: 1985-04-24

GB/T 5124.4-1985 Replaced

GB/T 5124.4-1985 Methods for chemical analysis of hardmetals—The photometric peroxide method for the determination of titanium content

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