SS CMA Material

"when i checked the casing and impeller, it was more like ordinary cast iron for me"

Did you take PMI (Positive Material Identification) of the material in doubt?

no i didn't use any testing material device, i "checked" means "saw" it

Who is the manufacturer?

Is the concept of picking up the phone and talking to the originator of the sheet completely alien or something?

It's a model designation of an Ebara pump.

CMA and CMB Data Sheets - Pump Power | Australia

It took 30 seconds to find this using a simple search engine. You should try it sometime.

Or, better yet, let the manufacturer educate you as PWSlack suggested.

i found it too by google the datasheet you mention above, but it was a pump model name not the kind of material.
it's written in the name plate CK PUMP SH 100-300, i tried to google it but nothing matched.
i am in engineering department and the pump was sent by purchasing department. i tried to confirm that all of the part complied the datasheet, since i had found earlier in other delivered item many of the distributor faked their stuffs.
if i call the distributor absolutely they will claim their stuff meet the compliment.
what i ask is whether this "ss cma" really a kind of stainless steel, alloy or something. if it is, does anyone of you have refferences about it

I don't know how it can be made ANY SIMPLER.

Go here: CMA and CMB Data Sheets - Pump Power | Australia

The materials are clearly spelled out in the literature and the parts list.

<Shakes head in disgust; unsubscribes>

Master, master!

If you are in doubt about the material, have it tested.

If engineers would be sending equipment they would be working in logistics.

What is your point? If you do the quality control then get the documentation and compare to your test results.

How did you find out the other equipment was "fake"?

Maybe you should establish a better communication with your suppliers. Me thinks it is utterly missing.

· Try to contact the manufacturer and request for chemical composition report of each part in doubt. If the parts are made of proprietary chemical composition, then it will be very difficult to get the exact chemical composition. However, they can provide the general range of each element used in the product

if the parts are accessible from outside for a material verification test,

· Try to get PMI machine (XRF analyser or portable spectrometer chemical analyser).

· Hire third party inspection agency to do PMI on those materials.