Thursday, August 31, 2017

[MW:26777] Hardness unit

Dear Experts,

We are using the MH310 Leeb Hardness Tester to check the hardness of the piping weld joints ( For production- NACE material) . Project specification states that the maximum allowable value is 248 HV10. When using the MH310  Tester to check, the Tester only shows the unit HV (not specified HV10). Client QC worry about unit of value:  the HV unit displayed is HV10 or HV. HV/HV10 are equivalent ? Client required to clarify.

Please help me to clarify this issue and give reference.

Thank you so much.

 

GIGI

Piping Inspector

 

 

By -

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Re: [MW:35289] Welding consumable for S355J2WP material

S355 J2 WP  is a weathering structural steel  It has better atmospheric corrosion resistance. Use E 8018 - W1/W2  Electrodes This is regular...

  • 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...