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topic 37249

Hardness of EN-8 grade material

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Q. How to check the grade material hardness?
Is it in c scale or b scale? (hrc / hrb)?
What is the normal hardness of en8d material?
If material is case hardened which scale is used, e.g.: en8, en8d, en19,en9, a8620)?
If material is not hardened, e.g.: m.s, l.c material, which scale is used?

auto parts - Gurgaon, India


Q. What is the Hrc of EN-8 material

kale pritam v
- pune maharashtra india

Ed. note 2010: We posted your inquiries, gentlemen, but as you see no reader has taken the time to address them, despite thousands of people viewing them. Please re-read our note that abstract questions usually go unanswered; if you re-frame them to include your own situation, they are far more likely to elicit responses. Best of luck!

September 30, 2011

A. EN 8 Mechanical Properties :
- Coils, Hot rolled : 240 BHN max.
- Coils, Hot rolled, Annealed: 180 BHN max

Vikram Hebbar
- Bangalore, Karnataka, India

Can 51 HRC EN8 Material be straightened?

August 12, 2016

Q. An EN8 material Sq. Bar has been bent right from its middle portion due to hardening of about 51 HRC on straight teeth of about 3 mm deep on its surface. Is there any process or suggestion to remove this bend while preventing from any crack? Please suggest.

Nitish Kumar
designer & fabricator - Faridabad, Haryana, India

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