Skip to main content

[MW:4342] RE: Impact value requirements for sub Size Specimen (Size 10x7.5mm) at -20 Deg.F against requirement 14 Deg.F (Size 10x10mm)

By Materials & Welding

Sorry below highlighted is APL 5L clause 9.10.4 (not API 1104)

 

Regards,

C.Vasanthan
MIPS - Quality Control
DeltaAfrik Engineering Limited
City Express Bank Building
Plot 1637 Adetokunbo Ademola Street
Victoria Island, Lagos Nigeria
Phone: +234-1-461-8508, +2341-461-6137 ext. 1254
Cell: +234-(0)-807-478-9478
Fax: +234-1-262-2418
e-mail: vasanthan.chandra@worleyparsons.com
WorleyParsons | www.worleyparsons.com

From: Chandra, Vasanthan (Lagos)
Sent: 18 February 2010 13:04
To: 'materials-welding@googlegroups.com'
Subject: Impact value requirements for sub Size Specimen (Size 10x7.5mm) at -20 Deg.F against requirement 14 Deg.F (Size 10x10mm)

 

Hi,

 

I have consolidated the subject query as below,

 

1. Impact requirement at 14 Deg.F with values of 27 J Average and 20 J Minimum Individual.

 

2. PQR Tested at -20 Deg.F with Sub size 10x7.5mm with values of 11, 8 and 7 J individual and average of 9 J.

 

3. Material: API 5L X52

 

4. Thickness: 0.365’’ (9.2mm)

 

5. Design Code: ASME Sec VIII Div.1 and ASME B31.8

 

 

Whether -20 Deg.F can support 14 Deg.F requirements. According to me it is possible, but the values at -20Deg.F is less than the requirement as per 9.10.4 of API 1104 conversion which are 27 J Minimum Individual and 36 J Average.

 

Pl share your interpretation and let me have your view.

 

Regards,
Vasanth

 


*** WORLEYPARSONS GROUP NOTICE *** "This email is confidential. If you are not the intended recipient, you must not disclose or use the information contained in it. If you have received this email in error, please notify us immediately by return email and delete the email and any attachments. Any personal views or opinions expressed by the writer may not necessarily reflect the views or opinions of any company in the WorleyParsons Group of Companies."

Comments

Post a Comment

Popular posts from this blog

Materails FAQs

By Materials & Welding
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...
21 comments
Read more

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

By Materials & Welding
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...
Post a Comment
Read more

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

By Materials & Welding
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, ...
Post a Comment
Read more