Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

11044 Evaluation of High Temperature Cracking Risk of Stainless Steels in Presence of Zinc Silicate

Picture for 11044 Evaluation of High Temperature Cracking Risk of Stainless Steels in Presence of Zinc Silicate
Available for download
Product Number: 51300-11044-SG
ISBN: 2011 11044 CP
Author: Matina THAMMACHART, Yves GUNALTUN, Suchada PUNPRUK and Siriporn DAOPISET
Publication Date: 2011
$0.00
$20.00
$20.00
The zinc-containing primers, especially zinc silicate, are widely used on the carbon steel for both onshore and offshore environments. Their use on stainless steels is not recommended since there is a risk of liquid metal embrittlement by molten zinc in case of fire due to its low melting point. Zinc silicate contains metallic zinc particles which can diffuse into the stainless steel if the particles melt. However, zinc quantity may not be sufficient (the thickness is 60 to 90 microns) to initiate a significant cracking. Also the oxidation of zinc particles, which are very small, before they reach melting temperature, would not permit cracking of stainless steels. In order to confirm these possibilities some tests were carried out on three types of stainless steels painted with 60 to 90 microns of zinc silicate and heated to temperatures 400 to 650oC. No cracking was observed on painted samples but cracking was experienced on stainless steel samples when a piece of zinc is placed on the stainless steel surface. This paper summarizes the test results and discusses the possible reasons of non-cracking.

Key words: liquid metal embrittlement, zinc silicate, stainless steel.
The zinc-containing primers, especially zinc silicate, are widely used on the carbon steel for both onshore and offshore environments. Their use on stainless steels is not recommended since there is a risk of liquid metal embrittlement by molten zinc in case of fire due to its low melting point. Zinc silicate contains metallic zinc particles which can diffuse into the stainless steel if the particles melt. However, zinc quantity may not be sufficient (the thickness is 60 to 90 microns) to initiate a significant cracking. Also the oxidation of zinc particles, which are very small, before they reach melting temperature, would not permit cracking of stainless steels. In order to confirm these possibilities some tests were carried out on three types of stainless steels painted with 60 to 90 microns of zinc silicate and heated to temperatures 400 to 650oC. No cracking was observed on painted samples but cracking was experienced on stainless steel samples when a piece of zinc is placed on the stainless steel surface. This paper summarizes the test results and discusses the possible reasons of non-cracking.

Key words: liquid metal embrittlement, zinc silicate, stainless steel.
Product tags
Also Purchased
Picture for Evaluation of the Potential for Liquid Metal Embrittlement of 304L Stainless Steel by Galvanized Fasteners in an Industrial Fire Scenario
Available for download

Evaluation of the Potential for Liquid Metal Embrittlement of 304L Stainless Steel by Galvanized Fasteners in an Industrial Fire Scenario

Product Number: 51317--9192-SG
ISBN: 9192 2017 CP
Author: Ramon Solo
Publication Date: 2017
$20.00

Transfer of Zn from hot-dipped and mechanically galvanized steel bolting to stainless steel by exposing a 304L stainless steel/Galvanized bolting assembly to temperatures in the range 205°C to 537°C for one hour to simulate an industrial fire scenario.
Picture for 07006 INORGANIC ZINC PRIMER VS ORGANIC ZINC PRIMER: (an end-user point of view ).
Available for download

07006 INORGANIC ZINC PRIMER VS ORGANIC ZINC PRIMER: (an end-user point of view ).

Product Number: 51300-07006-SG
ISBN: 07006 2007 CP
Author: Massimo Cornago
Publication Date: 2007
$20.00

 In this paper the approach of an Oil Company is demonstrated from the initial choice between different primers: inorganic zinc and organic (epoxy) zinc., to all the preliminary pre-qualification tests, the subsequently field test performed, and the procedures adopted, costs included.
Picture for Challenging the Performance Myth of Inorganic Zinc Rich vs Organic Zinc Rich Primers
Available for download

Challenging the Performance Myth of Inorganic Zinc Rich vs Organic Zinc Rich Primers

Product Number: 51317--9127-SG
ISBN: 9127 2017 CP
Author: Jose Luna
Publication Date: 2017
$20.00

Protecting mechanisms of a new generation of activated zinc primers with enhanced protection vs inorganic zinc rich primers. Performance properties have been proven with results from different corrosion tests.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support