what is the meaning(definition)of EN grade of steel and also tell whats the full name of EN?

Answer Posted / sanjeev k jain

EN means Emergency Number.
This system of coding special alloy steels was introduced by German Engineers during the first world war.

Is This Answer Correct ?    120 Yes 73 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Explain cementite?

538


i m going to give an interview for iocl on 5th aug . pls tell me what questions can be answered from metallurgical prospect

2492


What is spcc material?

624


does any one has gate solutions of 2007,08,09 metallurgical engg papers?

2143


what medal conducts heat best?

562






Unlike materials as well as materials of different thickness can be butt welded by ?

988


What is thermodynamic state of metal?

544


What are the compositions of brass, how can this metal be heat-treated, what is the melting point of this metal?

518


is nickel considered a non-sparking metal?

541


How we describe strain aging based on dislocation theory?

520


I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.

1910


What is the use of core prints?

621


Explain vacuum induction melting?

513


How does iron and steel exhibit allotropy?

513


what is the strongest metal? How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny? Define what is the cause of this?

497