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Nodularity index in nodular iron?

Nodularity index in nodular iron?

(OP)
Hello,

our customer sent us new supply specifications in which he demands following:
Test report on graphite formation
o Form of graphite
o Quantity (%) of graphite form in each case
o Nodularity index (%)
o Nodule density per cm²
o Quantity (%) of ferrite/perlite
o Nodule size of graphite
All other parameters are specified in ISO 945-1, but I cannot find what nodularity index is and how or according to which standard it is specified.
Can anyone help me?

Dalin

RE: Nodularity index in nodular iron?

Have you referred to ASTM E 2567-11 " Standard Test Method for Determining Nodularity and Nodule Count in Ductile Iron using Image Analysis"

Also there is a position paper on the same, you may refer.

http://www.ductile.org/ASTM%20E2567-11%20Position%...

Hope it helps.

"Even,if you are a minority of one, truth is the truth."

Mahatma Gandhi.

RE: Nodularity index in nodular iron?

(OP)
Thank you arunmrao. I think that your advice pointed me to the right direction.

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