ASTM A106 Square and rectangular tubes

Product Description

ASTM A106 Square and rectangular tubes

Our ASTM A106 Square and Rectangular Seamless Steel Pipes are manufactured from high-quality carbon steel conforming to ASTM A106 / ASME SA106 specifications—the industry standard for seamless carbon steel pipe intended for high-temperature service.

Unlike conventional structural square tubes, our A106 seamless square and rectangular pipes combine the dimensional precision of cold-drawn hollow sections with the elevated-temperature strength of A106 Grade B material. This makes them the ideal choice for boiler connections, heat exchanger components, high-temperature process piping, and heavy-duty industrial equipment where welded seams may compromise performance under thermal stress.

Available in Grade A, Grade B, and Grade C, with Grade B being the most widely specified for general high-temperature applications


PRODUCT DESCRIPTION

A106 Square Pipe (SHS) & Rectangular Pipe (RHS)Details
StandardASTM A106 / ASME SA106
GradesGr. A, Gr. B, Gr. C (Grade B most common)
Manufacturing ProcessSeamless (hot-finished or cold-drawn)
ShapesSquare Pipe (SHS) & Rectangular Pipe (RHS)
Square Sizes16×16 mm – 500×500 mm
Rectangular Sizes10×20 mm – 500×450 mm
Wall Thickness0.8 mm – 30.0 mm
Length3 m – 12 m, or as required
Surface FinishBlack (mill finish), oiled, or painted
End FinishPlain end, beveled end, threaded with coupling
Max. Service TemperatureUp to 427°C (800°F)


GradeMin. Yield StrengthMin. Tensile StrengthCarbon (max)ManganeseSilicon (min)
A205 MPa (30 ksi)330 MPa (48 ksi)0.25%0.27-0.93%0.10%
B240 MPa (35 ksi)415 MPa (60 ksi)0.30%0.29-1.06%0.10%
C275 MPa (40 ksi)485 MPa (70 ksi)0.35%0.29-1.06%0.10%



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Company Profile

Shandong Puxin Stainless Steel Co. Ltd. is a sophisticated manufacturer of steel products.  The company is located in Jinan, China's largest stainless steel products base, adjacent to Tianjing.  We focus on the steel industry for nearly 15 years, we have a wide range of stainless steel products, is a long-term engaged in stainless steel wholesale, sales, processing, distribution of professional company.  Other metal products are also available if required by customers.  The annual export volume is about 1 million tons.  We promise that almost all inquiries will be handled within three hours.  
In a short period of time, Shandong Puxin Stainless Steel Co. Ltd. in the eastern stainless steel market and the whole stainless steel industry in Shandong enjoys a high reputation.  Has a large customer base from all over the country, and established a long-term cooperative relationship.  Customers involved in petroleum, chemical machinery, electric power, water treatment equipment, elevators, kitchenware, food machinery, pressure vessels, solar water heaters and other industries.  "Punctuality, integrity, humanized service" has been my company and all the staff always strictly abide by the principle of development.  

 

Main products
We’re the supplier of a wide range of stainless steel products ( ss plate/sheet, ss coil, ss tube/pipe, ss bar/rod of all shapes, channel steel, angel steel and etc),  and other nonferrous metal products. 
Various Standard and non-standard specifications are both available as customers request. All products we provided are strictly in line with the international standards. 
Products of common specification or grades are adequate in stock, please feel free to contact us if you want a quote or more details about the specific products.


Service and commitment:
Service three guarantees: guarantee quality, guarantee time, guarantee quantity.
Service tenet: strong strength, high quality products, low price, first-class service.
Solemn promise: Reply to the trust of the old and new customers with the best products, the best quality, the lowest price and the most perfect service.
Operating principles: customer first, Excellent quality, great variety, and reasonable price.
Shandong Puxin Stainless Steel Co. Ltd.  will serve the majority of users with good reputation, strong strength, high quality products and low price. I would like to express my heartfelt thanks to the old and new friends and customers who have always cared, supported and helped the company! And sincerely hope to establish long-term cooperative relations with them, mutual benefit and common development .

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