ASTM Testing Materials Hardness test LD values

[klln]

Hello friends,

Please help me giving the expand form of "LD" Values in hardness testing of metals

Much Regards,
pojo

 

[EdStainless]

I don't understand your question. Can you give an example?

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Corrosion never sleeps, but it can be managed.

http://www.trenttube.com/Trent/tech_form.htm

 

[klln]

Sorry friends.

When we take hardness reading, we get LD values
My question is what is LD stands for

thanks
pojo

 

[TVP]

You will need to ask the manufacturer of your hardness tester this question. I can only guess that it means LOAD, such as LD = 100 kgf for a Rockwell B test or LD = 150 kgf for a Rockwell C test.

 

[Carburize]

What type of tester are you using? Is it a portable machine like an Equotip?

 

[klln]

Yes I am using a portable EQOTIP hardness test machine

 

[ijzer]

The convertion can be found in the Eqotip manual.
It will depend on the type of alloy and the position of the hardness tester (horizonlal or vertical)

 

[Carburize]

The Equotip tester should have an in-built conversion to conventional hardness numbers - look at the menu screen where you can select material, direction and conversion.

 

[MOB1]

The Equotip is a Leeb Hardness tester (see ASTM A956). Hence the L numbers are shorthand for Leeb. The subscript D indicates that the testing device is a D type (Equotip have many other types of devices including C , E and G ).