Questions tagged [corrosion]
The corrosion tag has no usage guidance.
46
questions
1
vote
3
answers
32
views
What are effective anti-corrosion coatings for high carbon steel springs?
In trampoline design, the most common springs have a total elongation of about 60% of rest lengh. E.g. a 10" spring can be stretched to 16" indefinitely without deformation. These springs ...
2
votes
0
answers
22
views
dielectric unions and bonding continuity
I am a layperson not an engineer. In the diagram below showing an old house with a mix of copper and galvanized steel water pipes connected by a dielectric union, with the two dissimilar sections of ...
- 225
0
votes
1
answer
135
views
Does galvanization protects mild steel from corrosion even it crack or scratch?
I need to protect mild steel (steel with low carbon) from corrosion even any crack or scratch on it. I searched on internet, I found recommendation like this:
Keep it clean,
Apply protective coatings ...
- 219
1
vote
1
answer
179
views
Risk of corrosion putting aluminium shaft in a stainless steel bearing with frequent washdowns?
Should I worry about galvanic corrosion if using an aluminium shaft inside a stainless steel bearing in something that's going to be washed down frequently?
Considering I will press the shaft into the ...
- 349
0
votes
0
answers
58
views
Can different stainless steel grades corrode each other in contact
I am planning an application in which two stainless-steel grades can come into contact with each other. Can the differences in the grades cause corrosion in hot oily environment where water cannot be ...
- 11
0
votes
2
answers
57
views
Lead Cladding on Telephony (landline) copper cables. Any other early industrializers with this problem?
A recent environmental hazard has just been uncovered this past week by the Wall Street Journal:
"America Is Wrapped in Miles of Toxic Lead Cables"
https://www.wsj.com/articles/lead-cables-...
- 101
0
votes
1
answer
34
views
Orange spots at hot dip galvanized surface
I like to ask you about orange spots after galvanizing of Steel Purlins. I attached some of the pictures. Please advice the solution with your expertise.
Thank youenter image description here
enter ...
1
vote
1
answer
233
views
What aluminum grade is the most resistant to corrosion in alkaline environment?
Quick google search will return either 6000 series (6061 more specifically), or 3003
However with so many option and each having it's own benefit, I still haven't make my decision
What I am looking ...
- 11
1
vote
2
answers
169
views
Influence of design on corrosion control
In "Ahmad. (2006). Principles of corrosion engineering and corrosion control (1st ed.). Elsevier/BH.", it is stated that to fight against metallic corrosion it is more convenient to design (...
- 111
2
votes
1
answer
229
views
Aluminium Bolt in Titanium Casing: Any Dangers of (Contact-)Corrosion?
Assumed we have a fuel flask that is made of titanium. The bottle will be filled with white gasoline when used. At the bottleneck there is a standardized thread manufactured into the titanium.
Are ...
- 145
0
votes
2
answers
77
views
Steel grade recommendation
I'm working on a private project (no commercial motivations here) to build an outdoor (wood fired) pizza oven for my garden.
It's basically made of steel, so my question is which steel grade would be ...
2
votes
1
answer
863
views
Why is reverse osmosis permate corrosive?
I encountered a corrosion problem with a reverse osmosis (RO) unit years ago. A cooling water system in a remote gas compression plant used RO-processed river water to supply makeup water. The cooling ...
- 542
0
votes
1
answer
204
views
Sacrificial Anode Marine Growth / Biofouling
https://www.youtube.com/watch?v=1ed5jkbLEOs
A link to a video of an inspection for a group of zinc sacrificial anodes is above. The video is very long but all of the anodes have the same buildup on ...
1
vote
2
answers
136
views
How do you clean/restore corroded battery terminals?
I'm sure everybody has come across a case like the following:
My experience is that this corrosion must act as an insulator(/or shortcircuit). I have managed -in some cases- to clean by scrubbing and ...
- 24.4k
1
vote
1
answer
609
views
Salt grinder and corrosion
I am looking for a kitchen salt grinder.
I know salt is an aggressive compound and it needs a little bit of attention when we design products.
Since most of grinders have plastic-made or stainless ...
- 335