Does Stainless Steel Rust?
The question “does stainless steel rust?” is often asked. The short general answer is no, stainless steel does not rust*. We’re going to cover how stainless steel is made, how surface rust can show up on stainless steel, and how to remove surface rust from stainless steel. Let’s get started.
What is stainless steel and how is it made?
Stainless steel is made up of 16% to 36% of Chromium in the ferrous steel. The high amount of chromium is what makes the stainless steel rust resistant. When chromium is exposed to elements including water, air, and acids a layer of chromium(II) oxide layer is developed. This oxide layer is very thin and prevents corrosion.
How can rust form on stainless steel?
The most common occurrence of stainless steel showing rust is when ferrous metals are “rubbed” off onto the surface of the stainless steel. When ferrous metals embed into stainless steel the iron also referred as free iron can rust. The rust is contained to the surface of the stainless steel and will not penetrate beneath the oxide layer. Welding splatter when a flux type welder is used can also cause surface rust on stainless steel. If welding splatter is removed, rust can still form due to a layer of free iron on the surface of the stainless steel.
How can rust be removed from stainless steel?
The good news is that rust on the surface of stainless steel can easily be removed by following proper steps. We’re going to cover two common ways to remove surface rust including chemical cleaning and mechanical cleaning.
Removing rust on stainless steel using chemicals. Commercially available rust remover can be used effectively. When looking for commercially available rust removers look for oxalic acid in the ingredients. A homemade rust remover can be made by combining baking soda and a little water. Rub the wet baking soda paste into the surface rust, wait for a few minutes. With a clean damp cloth wipe the paste away. Dry with paper towels.
Mechanical cleaning can be used by using flapper wheels and or stainless steel wire brushes. Make sure the mechanical cleaning devices are new or uncontaminated by free iron. The goal is to remove the free iron, not smear it around on the stainless steel surface. Be careful not to apply excessive pressure. Pressing too hard with mechanical cleaning can do more damage than good.
Fluid Power Support can design and fabricate your stainless steel and ferrous metal projects. Call us at (573) 581-8200 or stop by our facility at 22398 Audrain Road 9824 Mexico, Missouri.
*Stainless steel does not rust by itself. Free irons are needed for stainless steel to form surface rust.
Fluid Power Support and Ultimate Steel Buildings are excited to be part of The Man Show!
Come join us Saturday April 29th 2017 for a lot of fun, prizes, and more all tailored for guys.
The Man Show
April 29th, 2017
10AM to 6PM
When you’re looking for excellent welding supply stores the top factors to look for are:
Praxair Distribution, Inc
1804 Burlington St, Columbia, MO 65202
Phone: (573) 474-9528
3109 Paris Rd, Columbia, MO 65202
Phone: (573) 474-7698
S.J. Smith Co.
4700 S Clark St, Mexico, MO 65265
Phone: (573) 581-1183
Fluid Power Support is a metal fabrication and powder coating company. If you have any projects where we can help please call (573) 581-8200.
Quality metal patio furniture is expensive. Over time all paints fail due to weathering, sunlight, and damage caused by accidents ie: chairs tipping over. Don't throw your furniture away when you can have it restored to like brand new with Fluid Power Support.
Patio furniture restoration process:
Let Fluid Power Support restore your patio furniture today! We've powder coated hundreds of patio tables and chairs from cities like Columbia, Fulton, Moberly, Mexico, and Jeff City. Call (573) 581-8200 to set up an appointment.
Manufacturing companies need strong partners in their supply chain. It’s very difficult for a company to do all of the work in-house and doing so can potentially cost more than working with supply chain partners due to increased labor costs, machinery, and shop space. One part of the supply chain for many companies is hiring contract manufacturing to make metal component parts and finished metal products. Fluid Power Support in Mexico, MO is a growing contract manufacturer, making high quality metal parts and finished products for companies around Missouri and Illinois.
Fluid Power Support was founded in 2000 by Mark Korman. The company started as a hydraulics consulting company for mid-Missouri area businesses but soon morphed into a small metal fabrication company. As time went on the small company grew to 81,000 sq ft and 48 skilled fabricators. From the beginning we focused on Quality, Precision, and Quick Turnaround in every part and finished product we made. Quality, Precision, and Quick Turnaround will always be our focus.
Fluid Power Support might be the metal contract manufacturer your company has been looking for. Feel free to give us a call at (573) 581-8200 or visit us at 22398 Audrain Road 9824 Mexico, Missouri.
Powder coating vs. painting.
Powder coat vs. paint. It's been talked about a lot recently. Here's a quick guide on advantages of both powder coating and wet painting.
Powder coating was invented in the early 1950's as a mixture of powder coat powder and flame that was applied to a metal substrate. The fluidized bed (air suspending powder coat partials) was invented and was the preferred method of applying thermoplastic powder coat until 1965. In the early 1960's the electrostatic spray gun was invented for application ease and consistency.
Powder coating is quickly becoming the preferred choice for coating metals. Powder coating can be applied by automated powder coat systems, batch powder coating, fluidized bed, and flame-spray method.
Painting is typically applied by a airless sprayer or a HVLP gun. Painting is the traditional method of applying a decorative and functional coating on objects.
This is by no means a full comparison of powder coating and wet painting. If you have more questions how powder coating may help your company increase the bottom line please give Fluid Power Support a call at (573) 581-8200 or stop by our office at 22398 Audrain Road 9824 Mexico, Missouri.