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

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

ongc technical questions in mechanical engineering

1 Answers   ONGC,

can u give me model question papers for exam preparation .

0 Answers   DRDO,

What is the effect on shunt motor's rotation if the polarity of the field and the armature winding increased simultaneouisly

1 Answers   GDT, JKP,

what is the composition of cement?

2 Answers   ACC,

All industrial (power plant, sugar. Cement etc...) chimneys are circular in shape rather than any other shapes... Y..?

9 Answers   UltraTech, BPCL Bharat Petroleum,

hi friends kumar here if anybody of u have essar placement papers than plz send it to me i need it urgently..ok mail id is kskalyani@gmail.com

0 Answers  

What is the units of surface tension and also dimensional formula?

7 Answers   RRB,

Differentiate Between High Speed coupling and high torque coupling with examples.

0 Answers   Tech Mahindra, Enercon,

Bearing no : 6402 what is the ID ,OD,width

0 Answers   ABC, SRACO,

Define laminor flow in fluid mechnics

2 Answers  

Critical speed of turbine means the natural frequency and resonance frequency are matching and cause for vibration and noise. which is the natural frequency. how it reflect in vibration.

0 Answers  

Pipe Lin Question

1 Answers   Reliance,

  • Civil Engineering Interview Questions Civil Engineering (4639)
  • Mechanical Engineering Interview Questions Mechanical Engineering (3704)
  • Electrical Engineering Interview Questions Electrical Engineering (15780)
  • Electronics Communications Interview Questions Electronics Communications (2638)
  • Chemical Engineering Interview Questions Chemical Engineering (762)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (79)
  • Bio Engineering Interview Questions Bio Engineering (30)
  • Metallurgy Interview Questions Metallurgy (95)
  • Industrial Engineering Interview Questions Industrial Engineering (199)
  • Instrumentation Interview Questions Instrumentation (2882)
  • Automobile Engineering Interview Questions Automobile Engineering (171)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (41)
  • Marine Engineering Interview Questions Marine Engineering (62)
  • Power Plant Engineering Interview Questions Power Plant Engineering (170)
  • Engineering AllOther Interview Questions Engineering AllOther (1335)