5 replies to this topic

[chandru]

Dear all,

I am using SS316 for Dm water services. shall i use valves and strainer in SS304. Will there be any problem if i use two different materials.

Please advise.

[Absolute Zero]

It depends on your application, if you are dealing with a hygienic plant then complete SS-316L should be used, no compromise on valves and strainers. But it is recommended to use SS-316 with DM water applications.

[Art Montemayor]

Chandru:


There is no basic difference in the martials. Both are austenitic stainless steels. 316L is the higher quality stainless, although 304 type was introduced first and was once more common and cheaper. Now, industry has decided to “standardize” on the higher quality type (316) and it is now less costly, and more available than the 304.

I would go ahead and use the 304 valves and not worry about it. You are trying to split hairs, in my opinion. You will never notice any difference in the water service.

[GTYJ81]

Chandru,

The main difference in the composition of 316SS versus 304SS is that 316SS contains 2-3% molybdenum, giving it better overall corrosion resistant properties than 304SS, particularly against pitting and crevice corrosion in chloride environments. I agree with Mr. Montemayor's comment that either material is suitable for your application.

[chandru]

Thank you ZAK,Art,GTY J81

[breizh]

Hi ,

Please consider this resource , in addition to answers from Forum Members.

http://www.ssina.com...ons/design.html

Breizh