BS DD215(1993) : 1993

Withdrawn

SPECIFICATION FOR VALIDATION OF METAL TEMPERATURE IN THE HEAT TREATMENT OF STEELS FOR PRESSURE PURPOSES

Available format(s)

Hardcopy , PDF

Withdrawn date

15-11-1997

Language(s)

English

Published date

01-01-1993

Publisher

British Standards Institution

Committees responsible
Foreword
Specification
1 Scope
2 References
3 Definitions
4 General requirements
5 Requirements for furnace temperature control
6 Metal temperature and metal temperature variation
7 General conditions for validation of metal
     temperature
8 Validation of metal temperature in batch furnaces
9 Validation of metal temperature in continuous
     furnaces
10 Validation of metal temperature for an individual
     furnace charge
11 Revalidation of metal temperature
12 Calibration of furnace instrumentation
13 Care and use of instrumentation
14 Heat treatment validation and revalidation records
15 Attribution certification
Annex
A (informative) Guide to the application of heat
     treatment classes
Tables
1 Permitted total metal temperature variation
2 Permitted metal temperature variation outside the
     specified temperature range
A.1 Application of heat treatment class to reference
     heat treatment and steel type
Figures
1 Examples of metal temperature variation
List of references

Specifies the requirements for the validation of metal temperature in batch and continuous furnaces in the heat treatment of steels for pressure purposes. Outlines the limits for permitted metal variation during heat treatment. Includes requirements for validation records,and the requirements for calibration of furnace instrumentation. Applies to steels for pressure purposes and heat treated on a small scale. Does not apply to the heat treatment of fabrications, nor to intermediate heat treatment processes that do not affect the material or the final properties. Also includes detailed tables and diagrams.

Committee	ISM/73
DevelopmentNote	BS DRAFT FOR COMMENT 91/44197 DC. OBSOLETE
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Withdrawn
Supersedes	91/44197 DC : SEP 91

BS 3605-1:1991	Austenitic stainless steel pipes and tubes for pressure purposes Specification for seamless tubes
BS 3604-1:1990	Steel pipes and tubes for pressure purposes: ferritic alloy steel with specified elevated temperature properties Specification for seamless and electric resistance welded tubes
BS 6562-1:1985	Terms used in the iron and steel industry Glossary of heat treatment terms
BS 3605-2:1992	Austenitic stainless steel pipes and tubes for pressure purposes Specification for longitudinally welded tubes