Specification for non-circular steel wire for mechanical springs

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-02-1993

Publisher

British Standards Institution

Committees responsible
Foreword
Specification
1. Scope
2. References
3. Definitions
4. Information and requirements to be agreed and
     to be documented
5. Manufacture
6. Dimensions and tolerances
7. Bend requirements
8. Hardness requirements
9. Freedom from defects in finished wire
10. Mechanical testing
11. Examination for defects
12. Retests
13. Packing and identification
Annex
A. (normative) Product analysis and permitted
     variations
Tables
1. Quality codes and wire applications
2. Chemical compositions and ranges (cast analysis)
3. Condition of finished wire
4. Helix set test
5. Edge bow tolerances
6. Tolerances on characteristic dimensions
7. Tolerances on length of straight lengths
8. Surface defect limits
9. Decarburization limits for carbon and low alloy
     steel grades
10. Material densities
11. Minimum surface hardness requirements
A.1 Permitted variation of product analysis from
     specified range
Figures
1. Cross sections of typical non-circular wire shapes
     indicating characteristic dimensions
2. Edge profiles
3. Coil curvature
4. Edge bow
5. Bed test
6. Final position of wire after the bend test where
     b > t
List of references

Specifies dimensional tolerances.

This British Standard specifies the requirements for steel wires of non-circular section supplied in coils or straight lengths, suitable for the manufacture of mechanical springs. It covers flattened, rectangular, square and trapezoidal (also termed keystone or tapered) section wires with square or rounded edges, and special cross section wires, up to a maximum characteristic dimension of 12.0 mm. The standard covers grades of carbon steel in the annealed, prehardened and tempered, cold drawn or cold rolled conditions including music wire, grades of alloy steel in the annealed and prehardened and tempered conditions, and grades of cold drawn or rolled stainless steel.

In addition to the definitive requirements, this standard also requires the items detailed in clause 4 to be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied.

NOTE. The grades of steel wire specified in this standard have been selected from those specified in BS 1429, BS 2056, BS 2803, and BS 5216.

Committee	ISE/106
DevelopmentNote	Supersedes 89/40727 DC (10/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
DocumentType	Standard
Pages	22
PublisherName	British Standards Institution
Status	Current

BS 2056:1991	Specification for stainless steel wire for mechanical springs
BS 1837:1970	Methods for the sampling of iron, steel, permanent magnet alloys and ferro-alloys
BS HDBK19(1970) : LATEST	METHODS FOR SAMPLING AND ANALYSIS OF IRON, STEEL AND OTHER FERROUS METALS
BS 6617-1:1985	Determination of decarburization in steel Methods for determining decarburization by microscopic and micro-hardness techniques
BS 5216:1991	Specification for patented cold drawn steel wire for mechanical springs
BS 4545:1970	Methods for mechanical testing of steel wire
BS 427:1990	Method for Vickers hardness test and for verification of Vickers hardness testing machines
BS EN 10002-1:2001	Tensile testing of metallic materials Method of test at ambient temperature

View more information

$294.12

Including GST where applicable

Product format

I agree to the DRM document license rules apply against the PDF selection made.

Please confirm that you agree to the document license rules for this document.

I agree to the document license rules .

Please confirm that you agree to the document license rules for this document.

Access your standards online with a subscription

Features

Simple online access to standards, technical information and regulations.
Critical updates of standards and customisable alerts and notifications.
Multi-user online standards collection: secure, flexible and cost effective.

Learn more on subscription solutions

Get in touch with us

BS 7612:1993

Specification for non-circular steel wire for mechanical springs

Table of Contents

Abstract

Scope

General Product Information

Standards Referencing This Book

Category

Subcategory