What is an EN Material. What is the difference of EN8, EN24,
EN40.




Answers were Sorted based on User's Feedback



What is an EN Material. What is the difference of EN8, EN24, EN40...

Answer / kr

EN mean europian norms (british standard)

genarally EN8, EN24,EN40 use in roundbar designation,

and chamical composition differace btn. them

Is This Answer Correct ?    134 Yes 35 No

What is an EN Material. What is the difference of EN8, EN24, EN40...

Answer / shyam shendur

EN8 also know as 080M40. An unalloyed medium carbon steel. EN8 is a medium strength steel, good tensile strength. Suitable for shafts, stressed pins, studs, keys etc.
Available as normalised or rolled. EN8 is supplied as round drawn/turned, round hot rolled, hexagon, square, flats and plate
EN24 also known as 817m40 comes treated in the T condition to 850/1000 N/mm2 we can offer EN24T in plate from 10mm thick up to 300mm, diameters from 10mm up to 950mm, squares from 20mm to 300mm and flats 20 x 10 up to 3000 x 300mm from stock. AISI 4340, werkstoff 1.6565.

Is This Answer Correct ?    24 Yes 5 No

What is an EN Material. What is the difference of EN8, EN24, EN40...

Answer / abhishek singhania

The above answer is a layman's answer. Can someone give a
litle more specfic anwers. Like what are the applicational
differences or maybe difference in their mechanical
properties or something?

Is This Answer Correct ?    27 Yes 11 No




What is an EN Material. What is the difference of EN8, EN24, EN40...

Answer / k.laxmanrao

why are useing in en24 in all motor shafts.if iam useing
en8 what problem faceing.

Is This Answer Correct ?    26 Yes 12 No

What is an EN Material. What is the difference of EN8, EN24, EN40...

Answer / kiriti m. bhattacharya

Shafts require high fatigue resistance because the slightest misalignment can cause a micro"wobble" - enough to start a fatigue crack on the surface or any other high tensile area, or a notches (stress concentration point). The idea is to find a machinable steel round bar which can then be heat treated: heat, quench (in oil) and tempered. What mechanical properties you end up with depends on the alloy additions (different EN numbers) and the post fabrication heat treatment.
So, to answer your question: First decide what mechanical properties your design requires; secondly, check which EN steel will meet your requirements. The En24 and En 26 are the "work-horses" for shafts and higher temperature bolting. In AISI terms: AISI 4140 and AISI 4340. It can be misleading just to speak about "shafts" without knowing the required service conditions. Hope this helps.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer



More Mechanical Engineering Interview Questions

composition of cast iron fc-500,fc-550,& fc-260 which is use in sheet metal industries as a piller set

0 Answers  


What type of pump is commonly used is feed water system in auxiliary boiler?

0 Answers   RRB, Siemens, ABC Inc,


What is the developed on working company

1 Answers   Saint Gobain,


what exactly 3by2 directional control valve means and how direction control valves work can any one explain me the diagrm please i need it must and should

1 Answers   Essar,


What is injection tag?

1 Answers  






What resistance the ship encounter when the vessel is at sea

0 Answers   RRB,


WHAT IS C.C IN AUTOMOBILE????

11 Answers   Pricol, IBM, TATA, Tata Motors,


IS there any rake angle in blade? which is used to shave the beard ?

1 Answers  


Ratio of specific heats of air.

2 Answers   Bhel,


Inspection for intermediate shaft bearing.

1 Answers   RRB,


if the blade height is increased,then how it increases the specific speed of centrifugal pump?

0 Answers   Bhel,


Define thermostate and thermocouple.

3 Answers  






Categories
  • Civil Engineering Interview Questions Civil Engineering (4652)
  • Mechanical Engineering Interview Questions Mechanical Engineering (3704)
  • Electrical Engineering Interview Questions Electrical Engineering (15815)
  • Electronics Communications Interview Questions Electronics Communications (2685)
  • Chemical Engineering Interview Questions Chemical Engineering (763)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (127)
  • Bio Engineering Interview Questions Bio Engineering (30)
  • Metallurgy Interview Questions Metallurgy (95)
  • Industrial Engineering Interview Questions Industrial Engineering (199)
  • Instrumentation Interview Questions Instrumentation (2884)
  • Automobile Engineering Interview Questions Automobile Engineering (171)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (74)
  • Marine Engineering Interview Questions Marine Engineering (103)
  • Power Plant Engineering Interview Questions Power Plant Engineering (170)
  • Engineering AllOther Interview Questions Engineering AllOther (1371)