What SS Screw Can Achieve 500 Hour Salt Chamber Test

I won't do your work for you.

This might help if your supplier can certify to these specs.

1. ASTM G85 -09 Standard Practice for Modified Salt Spray (Fog) Testing
2. 
   
3. ASTM B117 -09 Standard Practice for Operating Salt Spray (Fog ...

316L will do it.

Your answer is so professional and specific. Great!

Thank you guys.

All your comments help me to clarify about this stainless steel screw.

kind regards

Mauricio Banda (Monterrey, México)

Hello

I suggest you to read this interesting paper from worldofstainless.org that explain why and how to use the salt spray and the limits of this type of test.

http://www.worldstainless.org/ISSF/Files/ISSF%20The%20Salt%20Spray%20Test%20and%20its%20use%20in%20ranking%20stainless%20steels.pdf

hope this help

S.

corrosion & rust prevention

try this site.

http://www.super-duplex.com/

super duplex was developed for the oil industry and is used in offshore oil rigs

Ø Intellectuals solve problems, geniuses prevent them. Albert Einstein

When I worked for a communications company we had to build a new shore entry for a submarine cable. The cable was hoisted off the seafloor using a cable laying ship. The old shore end was cut off. A splice was made and a new shore end installed. The old piece was abandoned. I scuba dived on the abandoned piece and disassembled the armour plating that is used near the shore for protection. These plates were held together with MONEL bolts. I cleaned them in my shop removing coral build up using a wire wheel and they were in MINT condition after 25 years in the ocean.

This may not be relevant but you may find it interesting.

Regarding Monel---I salvaged and rebuilt a 40' Catamaran, from a tropical harbor. It had been in decay for many years. In taking the pieces apart, I removed 3" and 4" Monel screws and bolts, that had been in place since a few years after the Korean War.. They also, were in perfect shape, and were used to rebuild the boat. I do not know the history of Monel, but it is expensive, but a wonderful metal.. I would choose it over many grades of stainless. One must dial up the engineering requisites first...