Tuesday, June 8, 2010

[MW:5437] How to control the hardness in P22

Hi all,
         May any one tell me, how to control the hardness of the P22 materials welding without PWHT. Even, we do pre-heating as per the ASME 31.3 & also we use 2.6mm dia electrode(E9016/8). Still we get the hardness around 290 HB.
 
Any suggestions to control the hardness within 241 HB(ASME 31.3).
 
 
Please help.
Thank you.
Best regards,
P.Mahendran

--
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/
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.
By -

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Re: [MW:34874] ASME IX, groove weld during WQT limits for Fillet Weld production

Hi David,  There are two points in WQT. 1. Thickness of Base Metal -T 2. Thickness of Weld Metal -t When you use a combination of two proces...

  • Materails FAQs
    Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? ...
  • RE: [MW:5585] Buttering of weld joints
    Definition of buttering from ASME Section IX, QW/QB-492 Definitions:   Buttering:  the addition of material, by welding, on one or bot...
  • WELD AND WELDING SYMBOLS
    Section I. PRINT READING 3-1. GENERAL a. Drawings . Drawing or sketching is a universal language used to convey all necessary information to...