YS/T 291-2012 English PDF

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YS/T 291-2012: Hardmetal blanks used for necking dies of standard bolt
Status: Valid

YS/T 291: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 291-2012	239	Add to Cart	3 days	Hardmetal blanks used for necking dies of standard bolt	Valid
YS/T 291-1994	239	Add to Cart	2 days	As-sintered hard metal blanks used in reducing dies for standard bolt	Obsolete

Similar standards

JB/T 10766   GB/T 6883   GB/T 3462   YS/T 292   YS/T 294   YS/T 293   

Basic data

Standard ID: YS/T 291-2012 (YS/T291-2012)
Description (Translated English): Hardmetal blanks used for necking dies of standard bolt
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H72
Classification of International Standard: 77.160
Word Count Estimation: 9,993
Older Standard (superseded by this standard): YS/T 291-1994
Quoted Standard: GB/T 1804-2000; GB/T 5242; GB/T 5243
Regulation (derived from): Ministry of Industry and Information Technology Bulletin 2012 No. 70; industry standard filing Notice 2013 No. 3 (total 159)
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the standard bolt necking dies carbide blanks requirements, test methods, inspection rules, marking, packaging, transport, storage and quality certificates and contracts (or orders) content. This standard applies to M3 ~ M20 standa

YS/T 291-2012: Hardmetal blanks used for necking dies of standard bolt

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Hardmetal blanks used for necking dies of standard bolt ICS 77.160 H72 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 291-1994 Standard bolt necking Die Carbide rough Issued on. 2012-12-28 2013-06-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. Instead of the standard YS/T 291-1994 "standard bolt necking Die Carbide rough," This standard YS/T 291-1994 phase Technology than the main changes are as follows. --- Modify the model represents a rule; --- Revised the tolerance range; --- Increasing the cylinder of product requirements; --- Increasing the height of the product direction parallelism tolerance; --- Increasing the outer and inner roundness product requirements; --- D1 and 20 ° increased the tolerance level; --- Modify the work site and the non-working parts of the edge off angle off length (width) requirements; --- Cancel the section organizational requirements; --- Increasing the quality of the content certificate; --- Increase the contents of the contract (or purchase order) of. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard was drafted. Zhuzhou Cemented Carbide Group Co., Ltd., Xiamen Golden Egret Special Alloy Co., Ltd. The main drafters of this standard. Deng Kai, Liang Hong, Yang Jianguo, Zhao Sheng Chi, Wu Qishan, Zhang Shi Ping, Liu Xinyu. This standard replaces the standards previously issued as follows. --- YS/T 291-1994. Standard bolt necking Die Carbide rough

1 Scope

This standard specifies the standard bolt necking die with carbide blanks requirements, test methods, inspection rules, marking, packaging, transportation, storage Keeping and quality certificate and contract (or purchase order) content. This standard applies to M3 ~ M20 standard bolt diameter reduced Carbide rough mold used.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 1804-2000 General tolerances Tolerances for linear and angular dimensions without individual tolerance GB/T 5242 carbide products inspection rules and test methods GB/T 5243 carbide product logo, packaging, transportation and storage

3 Requirements

3.1 Model presentation rules Represented by the letters BS standard bolt Die Carbide rough necking, necking standard bolt Die Carbide rough model by the Category Codes (BS), the inner diameter (d), the outer diameter (D), consisting of four parts height (H). Example. an inner diameter of 2.1mm, an outer diameter of 14.0mm, 15.0mm height standard bolt necking die Carbide product model is expressed as. BS2.1 × 14.0 × 15.0 3.2 References, dimensions The product is shown in Figure 1, the product model are shown in Table 1. Figure 1 a schematic view of a standard bolt necking die Carbide blanks ......

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