FASTENERS 101™
Materials FAQ
Frequently Asked Questions (FAQ) About Stainless Steel
Stainless Steel FAQs
Quick answers to common questions about stainless steel.
Why doesn't stainless steel rust?
Stainless steel generates its own protective film that shields it from environmental harm, regenerating in moderate to high oxygen environments even if damaged.
Why is stainless steel corrosion resistant?
It creates a film coating over its exterior that protects it from harsh environmental factors.
Why is stainless steel used?
It's used for its corrosion resistance, antimicrobial properties, and shiny silver or black finish.
Will stainless steel rust?
It may rust if the wrong grade is used or if damage prevents the protective coating from regenerating.
Is stainless steel magnetic?
It can become magnetic after being worked but is not naturally magnetic.
Which stainless steel is food grade?
316 stainless steel is ideal due to its high corrosion resistance.
Which stainless steel grade is the best?
The best grade depends on the specific job and its requirements.
Which stainless steel is the most corrosion resistant?
316 stainless steel is the most corrosion-resistant grade.
Which grades of stainless steel don’t rust?
No grade is completely rust-proof, use the right grade for the environment to extend life.
Can I use aluminum and stainless steel together?
No, combining them causes galvanic corrosion unless a neoprene EPDM washer is used as a barrier.
How do I clean stainless steel?
Use mild soap, water, and a soft cloth, avoid abrasive cleaners to preserve the finish.
What is the cost of stainless steel?
Costs vary by grade and market, 316 is typically more expensive due to corrosion resistance.
Frequently Asked Questions (FAQ) About Aluminum
Aluminum FAQs
Quick answers to common questions about aluminum.
Will aluminum rust?
Aluminum is corrosion-resistant but can rust in certain environments.
Will aluminum corrode?
Aluminum is corrosion-resistant but can rust in certain environments.
Will aluminum corrode in saltwater?
Lower grades may rust in saltwater marine environments.
Is aluminum stronger than steel?
No, aluminum is lighter but less strong than steel; its strength depends on alloy and thickness.
Can aluminum be welded?
Yes, with proper techniques and equipment, such as TIG welding.
Frequently Asked Questions (FAQ) About Silicon Bronze
Silicon Bronze FAQs
Quick answers to common questions about silicon bronze.
What are silicon bronze screws?
Screws made from silicon bronze.
What are silicon bronze bolts used for?
Used in marine and electrical applications for high corrosion resistance and electrical conductivity.
What color is silicon bronze?
When should I use silicon bronze?
It's ideal for harsh environments due to its exceptional corrosion resistance.
Will silicon bronze rust?
Silicon bronze should not rust.
Is silicon bronze expensive?
Yes, it's more costly due to its corrosion resistance and specialized properties.
Can silicon bronze be welded?
Yes, with proper techniques like MIG or TIG welding, using silicon bronze filler.
Frequently Asked Questions (FAQ) About Brass
Brass FAQs
Quick answers to common questions about brass.
Will brass rust?
Brass will patina over time but takes a long time to rust.
Will brass tarnish?
Yes, brass darkens over time when exposed to elements, varying by material composition.
Will brass stick to a magnet?
No, brass is not magnetic.
Will brass conduct electricity?
Brass has limited conductivity, making it a poor choice for electrical purposes.
Will brass turn green?
Yes, brass patinas over time, but this isn’t rust and doesn’t compromise the material.
Can brass be painted?
Yes, but special paint is needed as it’s hard to adhere.
Can brass be hardened?
Yes, by heating evenly and cooling slowly.
Is brass stronger than aluminum?
Yes, brass is generally stronger than aluminum but less corrosion-resistant.
How do I polish brass?
Use a brass polish or a mild abrasive polish with a soft cloth. Clean the surface first, apply polish evenly, then buff to restore shine. Avoid harsh abrasives that may scratch the surface.
Do brass parts vary in weight?
Yes. Based on the nickel and other metal content, brass can vary significantly in weight. For example, if you had a package of 1,000 brass washers and weighed 10 random washers, then picked another 10 random washers, the same count of 10 could have different total weights due to variations in material composition.