Specification for toolmakers\' flats and high precision surface plates

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-31-1978

Publisher

British Standards Institution

Foreword
Cooperating organizations
Specification
1. Scope
2. References
3. Material
4. Features of design and recommended sizes
5. Finish
6. Accuracy
7. Cases for flats
8. Covers for plates
9. Preservation and packing
10. Marking
Appendix
A. Compositions of some typical steels and cast
     irons and notes on the appropriate methods of heat
     treatment
Tables
1. Dimensions of flats and plates
2. Tolerances
Figure
1. Toolmakers' flat showing recess in base and groove
     round periphery

Circular hardened steel or granite toolmakers\' flats up to 200 mm diameter and circular cast iron or granite high precision surface plates 250 and 400 mm diameter. Material, general design, finish, accuracy, cases, packing and marking. Composition of typical steels, cast irons and heat treatment.

This British Standard is applicable to circular hardened steel toolmakers’ flats having a maximum diameter of 200 mm, and to cast iron or granite high precision surface plates having a maximum diameter of 400 mm.

Committee	TPR/1
DevelopmentNote	Supersedes 72/33731 DC and BS 869(1939) (10/2005) Reviewed and confirmed by BSI, February 2012. (01/2012)
DocumentType	Standard
Pages	10
PublisherName	British Standards Institution
Status	Current

BS 1133-6(1966) : 1966	PACKAGING CODE - TEMPORARY PROTECTION OF METAL SURFACES AGAINST CORROSION (DURING TRANSPORT AND STORAGE)
BS 427-1:1961	Method for Vickers hardness test Testing of metals

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BS 869:1978

Specification for toolmakers\' flats and high precision surface plates

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

Category

Subcategory