Skip to main content

[MW:28048] Painting spec

Dear All,
Greetings of the day.

I know that given group is a Welding group and i am asking query on Painting spec. Kindly forgive me for same.

I am new to painting requirements for a given service. I have referred following spec for a given temperature and C-5M (marine) environmental conditions:
1. CINI manual.
2. Norsok M-501.
3. MIL standard.
4. EIL spec.
5. ISO 12944.
6. NACE SP198.

All are providing different-different painting systems for C-5M (marine) atmosphere. I am very confused due to same and not able to come on a conclusion.

Request all to provide guidelines to be followed in C-5M conditions for following temperature:

Sr. No.

Metallurgy

Temperature service °C

Surface condition

Shop application

Filed application

1

CS/LTCS/LAS

(-35) to 125

Insulated

 

 

2

CS/LTCS/LAS

Atmosphere to 125

Insulated

 

 

3

CS/LTCS/LAS

Atmosphere to 125

Uninsulated

 

 

4

CS/LTCS/LAS

126 to 250

Insulated

 

 

5

CS/LTCS/LAS

126 to 250

Uninsulated

 

 

6

CS/LTCS/LAS

251 to 500

Insulated

 

 

7

SS

(-35) to 125

Insulated

 

 

8

SS

Atmosphere to 125

Insulated

 

 

9

SS

Atmosphere to 125

Uninsulated

 

 

10

SS

126 to 250

Insulated

 

 

11

CS/LTCS/LAS/SS

Underground vessel

Underground vessel

 

 

12

CS/LAS/SS

Atmospheric

Salt water spray area

 

 

13

CS

Atmospheric

Sea water splash zone

 

 


Regards,
Devang Majithia

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
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.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

Comments

Popular posts from this blog

Re: [MW:34105] SA266 GR4N 4 Cycle SPWHT

Hi,  You are correct, Minimum refers to the one cycle for which this part will expose until final work shop PWHT. hence mill test certificate shall include this.  Max. SPWHT, refers to additional cycles of heat treatment that are reserved for future repairs during equipment lifetime.  Again, these simulated no. Of cycles shall be specified in MTC.  The idea is we need to make sure that steel mechanical properties are not compromised upon exposure to multiple repairs (i e 4 cycles in your case).  One could say, if steel is subjected to 4 cycles and is ok, then it should by defacto be good for one cycle, yet, this is wrong assumption cause mechanical problems and microstructure of materials varies accordingly based on no. Of cycles for which material will expose. This is apparent in alloy steel and especially for impact test values as an example.  In your case, this forged CS with properties before PWHT can be understood to be " as forged" condition (i.e. Wit...

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...