Published 1975 | Version v1
Book Metadata-only

Application of alloy 800 in PWRs

Creators

  • 1. Kraftwerk Union A.G., Erlangen (F.R. Germany)

Description

Alloy 800 has been used by Siemens since 1968 and is now used by KWU for U-tubed steam generators in PWR's. The particular grade of alloy 800 that is used is within the ASTM-Specification B 163, but there have been modifications in composition to improve the corrosion resistance. First the permitted upper limit of carbon was reduced to 0.04% and was then further reduced to 0.03% and a stabilisation ratio of Ti : C >= 12 and Ti : C + N >= 8 was specified. The minimum permitted chromium and nickel levels were increased to 20% and 32% respectively. The maximum permitted levels of other elements or impurities were reduced. At the final fabrication stage peening with glass beads on the outer surface was specified to introduce a compressive stress to depth greater than that allowed for production flaws. An account is given of the behaviour of the alloy in service in four power plants already in operation, and future developments are discussed. (author)

Additional details

Publishing Information

Publisher
British Nuclear Energy Society.
Imprint Place
London
Imprint Title
A status review of alloy 800. Proceedings of a British Nuclear Energy Society conference at the University of Reading on 25th and 26th September 1974
Imprint Pagination
p. 345-347.

Conference

Title
A status review of alloy 800.
Dates
25 Sep 1974.
Place
Reading, UK.

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
7223368
Subject category
S36: MATERIALS SCIENCE; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHEMICAL COMPOSITION; INCOLOY 800; PERFORMANCE; PHYSICAL PROPERTIES; PRESSURE TUBES; PWR TYPE REACTORS; REACTOR COOLING SYSTEMS; SPECIFICATIONS; STEAM GENERATORS
Descriptors DEC
ALLOYS; BOILERS; CHROMIUM ALLOYS; HEAT RESISTING ALLOYS; INCOLOY ALLOYS; IRON ALLOYS; IRON BASE ALLOYS; NICKEL ALLOYS; REACTOR COMPONENTS; REACTORS; TRANSITION ELEMENT ALLOYS; TUBES; VAPOR GENERATORS; WATER COOLED REACTORS; WATER MODERATED REACTORS