Re: [MW:20852] Effect on Normalized material when Claded, (weld overlay, explosion bonding, etc.)

Thanks so much for the info!

I will look into using GTAW w/ external water cooling.

We have a customer who is requiring that all the material for a vessel be made from normalized carbon steel with stainless clad. We will be providing explosion bonded heads and cylinders and will be weld overlaying everything else. I was questioning what good the normalized material would be if we are going to line the entire inside with austenitic ss. I'm assuming also that the HAZ for those parts receiving weld overlay would be "un-normalized" to some degree, depending on interpass temps. Is this wrong?

On Friday, May 16, 2014 3:51:28 AM UTC-7, George Dilintas wrote:

All depends on the control of the heat input...You should keep the heat input as low as possible.
Why you do not use automatic GTAW with the pipe rotating and water cooling of the pipe's external surface?
GTAW offers low heat input.
The water cooling will allow low interpass temperature and rapid cooling of the normalized carbon steel.
Rapid cooling will prevent increase of grain size and thus normalization will not be harmed

In ASME IX there are rules for WPS and PQR for cladding

best regards

Dr. Georgios Dilintas

Authorized Nuclear Inspector
Authorized Inspector Supervisor

I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS HELLAS

Tel: +30 210 40 63 113/4
Fax: +30 210 40 63 118
Cell: +30 69 44 64 62 04
(See attached file: Dilintas_George.vcf)

Jimmy Taylor ---16/05/2014 13:39:13---Hi all! This is my first post, so please excuse my etiquette if improper. I'm sure

From: Jimmy Taylor <drum...@gmail.com>
To: material...@googlegroups.com
Date: 16/05/2014 13:39
Subject: [MW:20823] Effect on Normalized material when Claded, (weld overlay, explosion bonding, etc.)
Sent by: material...@googlegroups.com

Hi all!

This is my first post, so please excuse my etiquette if improper. I'm sure I will learn as I go.

Question: What is the effect on say (14"NPS x .500wall SA-106B-N) if I were to clad the inside with 1 layer of 309L and 2 layers of 316L via SMAW? I'm particularly interested in the effect the HAZ will have on the Normalization of the material.

Thanks in advance!!

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm

The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
This message contains confidential information. To know more, please click on the following link: http://disclaimer.bureauveritas.com

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm

The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Materails FAQs

Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change. Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...

Re: [MW:10788] ON PLOT PIPING & OFF PLOT PIPING

Piping systems involved for the flow lines and gathering lines from the well head isolation valve to the production facility or processing plant isolation valve are determined as OFF PLOT. ON PLOT defines piping system in the processing plant and production platform. ANSI/ASME B31.4 applies for off plot piping system. B31.4 allows the use of either API 1104 or ASME section IX (as appropriate). However, occasionally, a very small system such as piping within 500 feet of a processing plant (some client also said 400 feet) may be declared B31.3 rather than B31.4. When B31.3 is invoked, only ASME Section IX is used. before you decide which code to use for welding procedure and/or welder qualification for pipe welding, you have to know the design and construction code applicable to the system. Please read far enough into scope and diagram illustrating the application of either B31.3 and B31.4 hope this helps rgds 2011/4/21 pradip kumar sil < pradipsil@gmail.com > Dear all, ...

Materials & Welding

Search This Blog