Lots of builders turn to stainless steel rectangular tubing when they need something strong that won’t easily rust. You’ll find plenty of suppliers out there offering a wide variety of grades, sizes, and even finishes. Many of these companies can also cut the tubing to the exact size you need, which is super helpful for specific projects.
Stainless steel rectangular tubing is simply metal tubing that’s shaped like a rectangle instead of being round. It’s made from stainless steel, which is why it doesn’t rust easily and holds up really well over time. People use it for everything from building frames to support structures where strength really counts.
TOP 5 stainless steel rectangular tubing suppliers list
Name | Founding Year |
Totten Tubes Inc. | 1955 |
Jianglin Steel | 2003 |
Coremark Metals | 1992 |
Stainless Tubular Products Inc. | 1979 |
Industrial Metal Supply | 1948 |
Totten Tubes Inc.
Year Founded: 1955
Main Products
- Stainless steel rectangular tubing
- Carbon steel rectangular tubing
- Galvanized steel rectangular tubing
- Stainless steel square tubing
- Carbon steel square tubing
- Structural round tubing
- Jumbo hollow structural sections (HSS)
- Custom fabricated steel components
Company Description
Totten Tubes Inc., headquartered at 500 W Danlee Street in Azusa, California, began operations in 1955. Since then, it’s grown into a well-known supplier of many kinds of steel tubes and pipes in the US. The company runs things from five spots out west—Los Angeles, San Diego, Northern California, and Phoenix—and gets tubes to the Pacific Northwest, Canada, and Mexico too.
It’s a family business, and they became known for having lots of different tube products. When they first started, Totten Tubes mostly dealt with structural steel tubing, mechanical ERW tubes, and certain pipe products following ASTM standards. But the industry changed, and the company got really good with hollow structural sections (HSS), different kinds of pipes, and seamless steel items.
Their stainless steel rectangular tubing is quite popular because it’s good quality and you can use it for many things. Totten Tubes keeps a huge amount of this tubing ready to go, offering lots of different grades, metal mixes, and sizes. What’s helpful is they often have unusual sizes that are tough to get from other places.
People like the stainless rectangular tubing from Totten Tubes because it naturally fights off rust and looks good. That means you can use it for machine parts, building supports, or even just for decoration in buildings. They make this tubing from quality 304L and 316L grade stainless steel, so it lasts and doesn’t corrode easily.
Totten Tubes doesn’t just sell the tubes; they can cut and shape them for you, too, using their fabrication services. They have modern laser cutters that can handle material up to 3/4″ thick very accurately. These lasers let them make simple holes for mounting or create very detailed custom pieces, just as a customer needs them, using machines like the Mazak 3D Fabri Gear 400 and others.
Jianglin Steel
Year Founded: 2003
Main Products
- Stainless Steel Rectangular Tubing
- Stainless Steel Pipes/Tubes
- Stainless Steel Plates
- Stainless Steel Coils
- Stainless Steel Strips
- Stainless Steel Fittings
- Stainless Steel Bars
- Stainless Steel Wire
Company Description
Jianglin Steel, which is officially called Tianjin Jianglin Technology Development Co., Ltd., started up back in June 2003 in Tianjin, China. Chairman Wang Junjiang got it going with a big investment of 500 million RMB. The company picked a good spot in Yuanjiabao Village, right in the Wuqing District.
Being there means it’s only a 40-minute ride to Tianjin Port. That’s really handy for sending their steel products out across the globe, you know. A good location makes shipping much easier.
Their facility is pretty sizable, taking up 21,000 square meters of space. They can churn out about 700,000 tons of steel products every year. That kind of production muscle lets Jianglin handle some seriously large orders from customers anywhere who need their specialty, stainless steel rectangular tubing.
Jianglin Steel really puts its energy into making quality stainless steel things, especially that rectangular tubing. They make sure this tubing meets tough global rules, like the ASTM A554 specifications. You can get these rectangular tubes made just how you need them, really.
They offer lots of sizes, tubes from 20mm up to 1000mm wide. Wall thickness can be anywhere from 0.5mm to 8.0mm. That flexibility helps customers get the right fit for whatever they’re building.
The rectangular tubing comes either welded or seamless. If you get the welded kind, it’s either industrial pipe, which is tough for structures, or decorative tubing. Decorative tubes usually have thinner walls, under 1.0mm, because they’re more about looking good in architecture or design.
Jianglin is serious about the quality of this rectangular tubing. Each tube goes through checks like water pressure tests. They even use X-rays to peek inside and make sure the welds are strong.
They use up-to-date processing tech and get their raw materials from suppliers they trust. This helps make sure the tubes have a nice finish and are strong enough for the job. You want tubing that holds up, right?
You’ve got choices for the stainless steel grade too, like 201, 304/304L, and 316/316L. Different grades work better for different things. That 304/304L grade is super common because it fights off rust well and works for lots of stuff, whether it’s used indoors or outside.
Coremark Metals
Year Founded: 1992
Main Products
- 304 stainless steel rectangular tubing
- 304 stainless steel square tubing
- 304 stainless steel round tubing
- Stainless steel welded pipe
- Steel (hot roll, cold roll, tool steel)
- Aluminum, brass, copper, and galvanized metals
- Fabrication services
- Hardware supplies
Company Description
Coremark Metals, with locations in Minneapolis, Minnesota, and Fort Worth, Texas, was established in 1992. It was started by a husband and wife team who were raising six daughters. Their initial idea was pretty straightforward: repurpose steel nobody else wanted and sell it cheaper.
They first set up shop in a rented warehouse. That place held about 2.5 million pounds of steel! Back then, the company name was actually Discount Steel.
The business really grew quite a bit from those beginnings. Now it’s known as Coremark Metals and is a recognized name for metal supplies and fabrication work. They keep over 12,000 different prime metal items in stock, ready to go.
Coremark Metals is also a certified Women’s Business Enterprise (WBE). This certification says something about the company’s ownership. Plus, they follow the ISO 9001:2015 standards for quality, meaning they really focus on doing things right and always looking for ways to improve how they work.
A big focus for the company is high-quality stainless steel rectangular tubing, especially the 304 grade. People in the industry really like 304 steel. Why? Because it fights off rust well, you can form it into shapes pretty easily, and it bends rather than breaks, which is known as ductility. That makes it useful for all sorts of projects, whether indoors or outdoors.
The factories where they make this tubing use modern machines and newer technologies. This helps make stainless steel products that are accurate and built to last. Everything they produce goes through strict quality checks, you know, to make sure it lines up with international standards.
Ordering from Coremark Metals is quite flexible, which sets them apart. You don’t have to place a huge order to buy from them. Customers can get full stock lengths if that’s what they need, or they can have pieces cut exactly to the size required for a specific job.
Stainless Tubular Products Inc.
Year Founded: 1979
Main Products
- Stainless steel tubing (round, square, rectangular)
- Stainless steel pipe
- Stainless steel fittings and flanges
- Welded stainless steel tubing
- Nickel and duplex tubing
- Bar products
Company Description
Stainless Tubular Products (STP), started in 1979, began its operations in a small 2,000-square-foot spot right in the Bronx, New York. James Goldsmith and some partners got it going. They spotted a real gap—it was hard to find specialized stainless steel pipe and tubing, plus getting good service was tough too.
At first, the company mostly sold stainless steel things to local shops that build stuff.
Pretty quickly, though, within just the first couple of years, STP really took off. Sales grew way beyond the local area, covering the whole Northeastern U.S.
That fast growth meant they needed a lot more room. They had to move into a bigger, 25,000-square-foot place just to keep up with all the inventory and work.
Then, early in 1984, STP decided to move the whole operation. They picked Northern New Jersey because it was a smarter spot to serve their customers better and manage getting products out the door. Made sense for logistics.
Fast forward to December 2008, and another big thing happened: TW Metals Inc. bought STP. This move brought STP into the O’Neal Industries family. O’Neal is known as the biggest family-owned metals service center network in the U.S., you see. Being part of that bigger group gave STP more backup and resources to keep growing.
When you talk about stainless steel rectangular tubing, Stainless Tubular Products is definitely a name that comes up; they’re leaders. They keep a massive amount of ornamental stainless tubing stocked up, probably one of the biggest and most varied inventories around. And that includes a whole lot of rectangular tubing choices.
The rectangular tubing they make meets ASTM A-554 specifications. That’s just a standard that ensures you’re getting good quality and something reliable.
STP usually offers rectangular tubing in a few different grades. The most common ones you’ll find are 304/304L and 316/316L. Both types are good at resisting rust and corrosion, which makes them useful for all kinds of things – from building details and decorations to heavy-duty industrial uses.
Generally, the 304/304L grade works fine for everyday kinds of jobs. If you need something tougher, especially against corrosion in harsh places, then the 316/316L grade is the better pick.
Their rectangular tubes come in lots of sizes, and you can get different finishes too, like polished ones. The standard polished looks include 180 Grit (that’s also called a #4 polish), 240 Grit, and 320 Grit. Having these different finishes means customers can pick exactly what they need, whether it’s just for looks or for how the part needs to function.
It’s not just about standard sizes either. STP can actually make custom rectangular tubing if a customer needs something specific. They have their own production and polishing setups right there. This lets them cut and finish stainless steel rectangular tubing to the exact measurements someone asks for. That ability to do custom work is something that really sets them apart from many competitors.
Industrial Metal Supply
Year Founded: 1948
Main Products
- Stainless steel tubing (round, square, and rectangular)
- Steel products
- Aluminum products
- Brass and copper products
- Cast iron products
- Lead and zinc products
- Tool steel and specialty metals
- Fence and railing components
- Metal services (cutting, fabrication)
Company Description
Industrial Metal Supply (IMS), located originally in Burbank, California, got its start way back in 1948. Norman and Sally Sherman founded the company. It began as a business focused on scrap and surplus metals.
Norman would find usable scrap metal, often getting good deals from places like Lockheed Martin. He then sold a lot of this metal. Local movie studios needed materials, and they were big customers.
Getting the metal delivered back then was something else. The family used their own 1947 Pontiac station wagon for deliveries. It pulled double duty – a delivery vehicle during the day and the family car at night. From that small start, IMS grew into a major metal seller for the Southwest region.
IMS really expanded over the years. Now, it operates seven locations spread throughout California and Arizona. You’ll find them in places like San Diego, Los Angeles (Sun Valley, specifically), Orange County (Irvine), and the Inland Empire (that’s Riverside).
There are also branches in Phoenix and Tucson. The newest spot opened up in San Jose back in 2022. Because of all these locations, IMS can serve customers in Nevada and Northern Mexico too. All this activity is supported by warehouses covering almost half a million square feet. That’s a lot of space for metal.
If you need stainless steel rectangular tubing, IMS has a pretty good selection. It’s designed for various construction jobs and industrial uses. The tubing they sell is made from austenitic steel alloys. That just means it’s strong and really good at resisting rust and corrosion.
IMS mostly offers two main kinds of stainless steel for this rectangular tubing. These are the 304/304L grade and the 316/316L grade. Each one works well for different situations.
The 304 stainless steel tubing is quite popular. People like it because it’s strong, lasts a long time, and doesn’t corrode easily. This steel has chromium in it – at least 10.5% – which naturally stops rust. It holds up against chemicals, fresh water, and even salt water.
Basically, it works well in tough spots where regular carbon steel tubing would just break down fast. This makes 304 great for outdoor projects where things need to last.
Now, if your project involves really harsh conditions, maybe near the ocean or dealing with strong chemicals, IMS offers 316 stainless steel. That grade gives even better protection against corrosion. Both 304 and 316 tubing come in lots of standard sizes (height and width), different wall thicknesses, and various lengths. You can usually find something to fit your project’s needs.
One really handy thing IMS offers is custom cutting for the stainless steel tubing. You can order the exact length you need for whatever you’re building. Getting pieces cut to size means less wasted material, which often saves some money too. People like fabricators and manufacturers, who need very specific measurements, find this service quite valuable.
Conclusion
Finding the right stainless steel rectangular tubing for your project is pretty straightforward these days. Many suppliers offer a huge range of options from standard sizes to custom cuts. This makes it much easier to get exactly what you need for strong, long-lasting results.
