304 Seamless Stainless Steel Square Pipe

OES Metal’s Stainless Steel Square Pipe combines durability, aesthetics, and functionality, making it suitable for a wide range of applications.

Contact OES Metal today for customized stainless steel square pipe solutions tailored to your specific requirements.

Looking for a perfect blend of strength and modern style? Check out our top-quality Stainless Steel Square Pipes. They’re designed not just to perform, but also to look sleek and contemporary. These pipes pack a serious punch when it comes to durability and strength, all while keeping a clean, streamlined look that fits right into today’s architectural trends.

We make our square pipes from high-grade 304 and 316 stainless steel, so they’re tough against corrosion and ready to handle all kinds of conditions. Thanks to their square shape, they offer excellent torsional strength and can handle the load like a champ—making them perfect for structural frames, support systems, handrails, or even decorative features.

You can get them in welded or seamless options, both made with precise measurements and consistent wall thickness. The smooth finish makes them a breeze to cut, weld, or install, and the modern square profile gives your project a sleek, stylish look—whether it’s industrial, commercial, or decorative.

product details

Product Details

These square pipes are super versatile—they’re used in everything from construction and auto framing to furniture and industrial equipment. Plus, all of our products meet international standards like ASTM A554 and EN 10296-2.

If you’re thinking about your next project where strength and style really matter, go for our square pipes. Give us a shout today—ask about custom sizes or get a great deal on pricing. We’re here to help you get exactly what you need!

Austenitic Stainless Steel	201, 301, 304, 305, 310, 314, 316, 321, 347, 370, etc
Martensitic Stainless Steel	410, 414, 416, 416, 420, 431, 440A, 440B, 440C, etc
Duplex Stainless Steel	S31803, S32101, S32205, S32304, S32750, etc
Ferritic Stainless Steel	429, 430, 433, 434, 435, 436, 439, etc

Product Specification

Standard	ASTM A213, A312, ASTM A269, ASTM A778, ASTM A789, DIN 17456, DIN17457, DIN 17459, JIS G3459, JIS G3463, GOST9941, EN10216, BS3605, GB13296
Material	304,304L,309S,310S,316,316Ti,317,317L,321,347,347H,304N,316L, 316N,201,202
Surface	Polishing,annealing,pickling,bright
Type	hot rolled and cold rolled
Size	Wall thickness：1mm-150mm Outer diameter：6mm-2500mm
Delivery time	Prompt delivery or as the order quantity.
Package	Standard export seaworthy package,or as required.
Application	It is widely used in the fields of petroleum, food, chemical industry, construction, electric power, nuclear energy, energy,machinery, biology, paper making, shipbuilding and boilers. Pipes can also be made according to customer requirements.
Container size	20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM

Chemical Composition Table

Chemical Component ( %)
Grade ASTM	C	Si	Mn	S	P	Cr	Ni
201	≤0.15	≤0.75	5.50-7.50	≤0.030	≤0.060	16.00-18.00	3.50-5.50
304	≤0.07	≤1.00	≤2.00	≤0.030	≤0.035	17.00-19.00	8.00-11.00
304L	≤0.03	≤1.00	≤2.00	≤0.030	≤0.035	18.00-20.00	8.00-12.00
309S	≤0.08	≤1.00	≤2.00	≤0.030	≤0.035	22.00-24.00	12.00-15.00
310S	≤0.08	≤1.00	≤2.00	≤0.030	≤0.035	24.00-26.00	19.00-22.00
316	≤0.08	≤1.00	≤2.00	≤0.030	≤0.035	16.00-18.00	10.00-14.00
316L	≤0.08	≤1.00	≤2.00	≤0.030	≤0.035	16.00-18.00	12.00-15.00