ferrite test in stainless steel
ferrite test in stainless steel
(OP)
WHEN REQUIRED FERRITE TEST FOR STAINLESS STEEL? AND WHAT PURPOSE ? AND WHAT IS THE RANGE OF FERRITE CONTENT??
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ferrite test in stainless steel
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RE: ferrite test in stainless steel
RE: ferrite test in stainless steel
Richard
RE: ferrite test in stainless steel
Delta ferrite(expressed in Ferrite No, FN)is required in austenitic s.s weld deposit to prevent microfissuring and subsequent hot cracking of the welds.
A delta ferrite level of at least 3FN will eliminate fissuring in weld metal deposited from austenitic filler metals 308, 308L,316 and 316L. Ferrite level of 4FN is required in E309, 5FN in E318, and 6FN in E347 weld metal to assure freedom from fissures.
If you could purchase this document :- IX-1695-92- (IIW-1166-92,-IX-, Guidance on specifications of ferrite in stainless steel weld metal, you may find this of great help.This document explains "Ferrite in weld metal" under different design scenarios.
Thanks
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario, Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299
RE: ferrite test in stainless steel
RE: ferrite test in stainless steel
RE: ferrite test in stainless steel
Just registered at their website, and these papers are freely available then. Great resource, must say
RE: ferrite test in stainless steel