Monday, June 24, 2013

FACTORS FOR HEAT TREAT RELATED ISSUES PART I BY TRINITY NDT

Heat treatment Hardness Related Issues - Part I

WHEN NEUTRAL HARDENING (i.e., QUENCH & TEMPER)

Low Hardness


  • Variation in steel chemistry (e.g., % carbon at the low end of the specification).
  • Surface De-carburization in the furnace. (i.e., low carbon potential)
  • Delay quench (i.e., excessive hold time between austenizing furnace and quench).
  • Insufficient quench time
  • Quench media temperature (high)
  • Quench media agitation (insufficient)
  • Tempering furnace temperature (high)

High Hardness 


  • Variation in steel chemistry (e.g., % carbon at the high end of the specification).
  • Improper austenizing furnace atmosphere (i.e., high carbon potential)
  • Quench media temperature (low)
  • Tempering furnace temperature (low)
  • Insufficient tempering (i.e., time/temperature relationship).

Radiography Testing of Welds

Radiography Testing of Welds

Radiograph Indicating "Hi-Lo" or Mismatch

Thursday, June 20, 2013

NDT Level II Certified Fresher Job Vacancies in Mumbai, India

NDT Level II Certified Fresher Job Vacancies in Mumbai, India

Qualifications: DME or HSC with Maths and NDT Level II Certified from Trinity Institute of NDT 
Technology with fluency in Tamil Language is essential

No of Vacancies: 05

NDT Job Vacancy Location : Mumbai, India

For more information Contact: Mr Mahesh

Phone:  08452084325

Please contact the above immediately.

For information about Trinity NDT World Class NDT Level II Certification courses and other welding inspector training courses visit: www.trinityndt.com or email your queries: training@trinityndt.com or call us on +91-98441 29439 / 99009 29439 / 080- 283 66466


Monday, June 17, 2013

World Class Training..Overwhelming Response for Trinity NDT Certification courses in June 2013

World Class Training..Overwhelming Response for our courses in June 2013.
Thank You every Participant for your participation and choosing us above all and Trust on our training courses ! We are committed to meet and deliver world class quality training and certification courses.

For upcoming training calender for NDT Certification courses and welding inspector courses visit: www.trinityndt.com or call +91 98441 29439 / 99009 29439