Seamless Cold Drawn Boiler Tubes
Boiler steel pipes include medium-pressure boiler pipes and high-pressure boiler pipes, which are mostly manufactured using seamless processes. Welded steel pipes are not suitable.
Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of seamless cold drawn boiler tubes in China, also supports customized service with low price. Welcome to wholesale discount seamless cold drawn boiler tubes for sale here from our factory. Contact us for free sample.
Carbon Steel Pipe
Seamless Boiler Tubes Specification
Seamless cold-drawn boiler tubes are high quality tubes designed for boiler and heat exchanger applications. These tubes are manufactured using a cold-drawn process that ensures precise dimensions, excellent surface finish and enhanced mechanical properties. They are made of carbon steel or alloy steel and have excellent strength, corrosion resistance and heat transfer efficiency. Seamless cold-drawn boiler tube is widely used in power plant, chemical industry, heating and other high pressure and high temperature conditions.
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Outside Diameter |
Wall Thickness |
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8mm-114mm |
1mm-14mm |
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Material and Standard |
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Item |
Chinese Standard |
American Standard |
German Standard |
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1) |
10# |
A53A |
St37 |
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A106A |
St37-2 |
DIN17175 |
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A179C |
St35.8 |
DIN1629 |
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2) |
20# |
St45-8 |
DIN17175 |
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St42-2 |
DIN1626 |
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ASTMA178-C |
St45-4 |
DIN1629 |
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3)
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45#
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ASTMA1045 |
CK45 |
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4)
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ASTMA210-C |
DIN1629/3 |
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St52.4 |
DIN1629/4 |
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5) |
37Mn5 |
J55 |
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Note |
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1)Packing |
Tubes have a heavy coat of protective oil wrapped in heavy gauge waterproof paper |
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2)Payment |
T/T or L/C |
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Boiler Pipe Materials And Standards
The standards and materials of steel pipes include carbon, alloy and stainless steel.
Carbon Steel: ASTM/ASME A/SA 106, ASTM A179, ASTM A192, ASTM/ASME A/SA 210, ASTM A333 Gr 1, 6,7 to Gr 9,
Alloy steel: ASTM/ASME A/SA 213 T1, T2, T5, T9, T11, T12, T22, T91, T92; ASTM A335 P1, P2, P5, P9, P11, P12, P22, P91, P92
Stainless steel: ASTM A268, ASTM A213, TP304/L, TP316/L, 310S, 309S, 317, 317L, 321, 321H, duplex stainless steel materials, etc.
Commonly used sizes: outer diameter 6mm to 1240mm, thickness 1mm to 50mm
Type: straight boiler tubes, U-shaped boiler steel tubes for heat exchanger tube bundles.
This standard specifies the classification, size, shape, weight and allowable deviations, technical requirements, inspection and testing, packaging, marking and quality certificates of seamless steel pipes for boilers.
Company Profile
GNEE Group is an industrial and trading company. We mainly produce and operate carbon steel pipes and alloy steel pipes.
Our mission is to make choice easier with one-stop service.
Our pipes include liquid delivery pipes, structural pipes, boiler pipes, etc.
We are not only a manufacturer but also an inventory manager. We typically stock over 5,000 tonnes of pipes of various sizes and standards. Our stock steel pipes range in outer diameter from 20mm to 406mm and wall thickness from 2mm to 70mm.
We are an influential exporter in the global steel products market. We are the sales and export agents of well-known local steel mills in Henan Province. With rich and professional steel product sales experience, our company has become a reliable bridge between overseas customers and local steel mills. Our company relentlessly seeks global business partners, provides them with solid services, and maintains stable and reliable business relationships with them.
We sincerely welcome friends from all over the world to visit our company. We look forward to establishing business relationships and personal friendship with you.
Company Certificate:
Our company holds the following certificates to ensure our commitment to quality and customer satisfaction:
ISO 9001: This certification shows that we adhere to international quality management standards and ensure that the quality of our products and processes is consistent.
Boiler and pressure Vessel Code Certification: We comply with the strict requirements of the boiler and pressure vessel Code to ensure that our products meet the industry code for boiler tubes.
Material Certification: We provide material certification, including chemical composition analysis and mechanical properties test reports, to verify the quality and compliance of our products.
FAQ
Q: What is the difference between seamless boiler tubes and welded boiler tubes?
A: Seamless boiler tubes are manufactured without any welded joints, with better strength, reliability and leakage resistance. On the other hand, welded tubes are formed by welding flat rolled plates, which can lead to weak points that are prone to leakage.
Q: Can seamless cold-drawn boiler tubes withstand extreme temperatures?
A: Yes, these tubes are designed to withstand the high temperatures typically encountered in boiler applications. However, the maximum temperature may depend on the specific material and grade of the tube. Please consult our technical team for the recommended maximum operating temperature for your application.
Q: Do you offer customization options for tubes?
A: Yes, we offer custom options such as specific lengths, dimensions, heat treatments and surface coatings to meet your project requirements. Please contact our sales team for further assistance.
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