Cangzhou Baoyang Pipeline Equipment Co., Ltd.
                                                                                                           
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GB/T6479 Q345D Q345e Low Temperature Carbon Steel Pipe / Seamless Steel Tube

Price Negotiable
Price: Negotiable
MOQ: 1
Delivery Time: 7~30 working days
Brand: BaoYang
Product Description

GB/T6479 Q345D, Q345E Low-Temperature Seamless Steel Pipes

1. Product Description: GB/T6479 Q345D and Q345E Low-Temperature Seamless Steel Pipes are high-quality steel pipes designed for applications requiring performance in low-temperature environments. These pipes are manufactured from carbon and low-alloy steel and are seamless, ensuring uniform wall thickness and excellent mechanical properties. They are specifically engineered to maintain their structural integrity and performance at temperatures as low as -40°C (-40°F).

2. Product Parameters:

Parameter Description
Grades GB/T6479 Q345D, Q345E
Material Carbon and Low-Alloy Steel (Seamless)
Standard GB/T6479
Size Range Various diameters and wall thicknesses as per GB/T6479
Length Standard lengths, customizable upon request
Ends Plain ends, beveled ends, threaded, or socket-weld ends
Surface Treatment As-rolled, annealed, or normalized

3. Mechanical Properties:

Property Q345D Requirement Q345E Requirement
Tensile Strength ≥440 MPa (64,000 psi) ≥470 MPa (68,000 psi)
Yield Strength ≥275 MPa (40,000 psi) ≥275 MPa (40,000 psi)
Elongation ≥21% ≥21%
Hardness Varies depending on heat treatment  

4. Chemical Composition:

Element Typical Range (%) for Q345D Typical Range (%) for Q345E
Carbon 0.18 - 0.22 0.18 - 0.22
Manganese ≤1.70 ≤1.70
Phosphorus ≤0.025 ≤0.025
Sulfur ≤0.025 ≤0.025
Silicon ≤0.55 ≤0.55
Chromium - ≤0.30
Nickel - ≤0.50

5. Product Uses:

  • Cryogenic Piping: Used for transporting liquefied gases and other substances in cryogenic storage and transportation systems.
  • Refrigeration Systems: Ideal for low-temperature refrigeration and freezing systems in industrial and commercial applications.
  • Chemical Processing: Suitable for handling chemicals that require low-temperature processing or storage.
  • Construction: Utilized in structural applications that demand high strength at low temperatures, such as in cold regions.
  • Power and Energy: Employed in power plants and energy sectors for pipelines and equipment operating in cold conditions.

6. Product Grade Standards:

  • GB/T6479: The pipes are manufactured in compliance with the GB/T6479 standard, which specifies the technical requirements for seamless steel pipes for low-temperature service.

Conclusion: GB/T6479 Q345D and Q345E Low-Temperature Seamless Steel Pipes offer a combination of high strength, ductility, and corrosion resistance that make them suitable for a range of cold weather applications. Their seamless construction and adherence to GB/T6479 ensure that these pipes provide a reliable and durable solution for various industries operating in low-temperature environments.

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Company Cangzhou Baoyang Pipeline Equipment Co., Ltd.
Location Room 512, Block B, Tiancheng Building, Yunhe District, Cangzhou City
Contact Person Amy

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