Explain about hardness testing, Mechanical Engineering

Assignment Help:

Q. Explain about Hardness testing?

When indicated on equipment or vessel data sheets, hardness testing shall be performed as follows:

a) Perform hardness tests at or near the centre of the weld or surface to be tested on the side exposed to the process environment. Prepare the surface in accordance with ASTM E-10. Use a Telebrineller portable tester to measure hardness.

One hardness test for each 3.05 m (10 ft) or fraction thereof, for each longitudinal seam of each course. One hardness test for each 3.05 m (10 ft) or fraction thereof, for each vessel circumferential seam. One hardness test for each nozzle to shell weld.

One test on each surface cut with oxy-fuel or Arc-Air which is left unwelded on the finished part. One test on each area where a temporaryweld was made and removed.


Related Discussions:- Explain about hardness testing

Determine the work done by the gas system, (a) Derive the mathematical equa...

(a) Derive the mathematical equation for work done in a polytropic process (i.e.) PV n =c) (b) A mass of gas is compressed in a quasi-static process from 80KPa, 0.1m 3 to 0.4M

Design equipment rooms for plant, Q. Design Equipment Rooms for plant? ...

Q. Design Equipment Rooms for plant? Equipment for important safety systems and controls shall be located such that they can remain operational during the defined accidental ev

C++, Jewels can only be removed for polishing from either end of the neckla...

Jewels can only be removed for polishing from either end of the necklace

Path function, prove that work is path function

prove that work is path function

Calculate the primary voltage and real power measurements, Question: A ...

Question: A 7.2kVA single phase 50Hz, 480Vrms: 240Vrms transformer can be modelled using the primary referred approximate equivalent circuit shown in Figure 1 below. Fi

Inertia -factors in clutch design , Inertia : The clutch rotating part sho...

Inertia : The clutch rotating part should have minimum inertia. Otherwise, when the clutch is released for gear changing, the clutch plate will keep on spinning, causing hard shif

Lubrication, what are the necessity of lubrication ?

what are the necessity of lubrication ?

Calculate mean effective pressure of engine, Calculate mean effective press...

Calculate mean effective pressure of engine: A 4 stroke diesel engine is having length of 20 cm and diameter of 16 cm. The engine is generating indicated power of 25 KW when

Reaction forces, If the allowable shear stress for each of the 10-mm-diamet...

If the allowable shear stress for each of the 10-mm-diameter steel pins at A, B, and C is tallow = 90 MPa, and the allowable normal stress for the 13-mm-diameter rod is sallow = 15

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd