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ASTM Testing Materials Hardness test LD values

ASTM Testing Materials Hardness test LD values

ASTM Testing Materials Hardness test LD values

(OP)
Hello friends,

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

Much Regards,
pojo

RE: ASTM Testing Materials Hardness test LD values

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

RE: ASTM Testing Materials Hardness test LD values

(OP)
Sorry friends.

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

thanks
pojo

RE: ASTM Testing Materials Hardness test LD values

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.

RE: ASTM Testing Materials Hardness test LD values

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

RE: ASTM Testing Materials Hardness test LD values

(OP)
Yes I am using a portable EQOTIP hardness test machine

RE: ASTM Testing Materials Hardness test LD values

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)

RE: ASTM Testing Materials Hardness test LD values

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.

RE: ASTM Testing Materials Hardness test LD values

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 ).

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