GB/T 18984 Hot Rolled Seamless Steel Tubes For Low Temperature Service Piping
Product Details
GB/T 18984 Steel Tube
,Low Temperature Round Seamless Steel Tube
,Hot Rolled Seamless Steel Tube 16Mn
GB/T 18984 Hot Rolled Seamless Steel Tubes For Low Temperature Service Piping
Material
The material used for hot rolled seamless steel tubes for low temperature service piping, as specified by GB/T 18984, is a type of carbon steel.
Specification
The specification for hot rolled seamless steel tubes for low temperature service piping, as determined by GB/T 18984, outlines the requirements for the dimensions, tolerances, and technical conditions for these tubes. It provides guidance on the manufacturing process, testing methods, and inspection standards.
Chemical Composition
The chemical composition of hot rolled seamless steel tubes for low temperature service piping, as per GB/T 18984, is crucial to ensure the desired properties and performance. The table below showcases the required chemical composition.
| Element | Composition Range |
|---|---|
| Carbon (C) | 0.16-0.26% |
| Silicon (Si) | ≤ 0.10% |
| Manganese (Mn) | 0.70-1.00% |
| Phosphorus (P) | ≤ 0.020% |
| Sulfur (S) | ≤ 0.010% |
Mechanical Properties
The mechanical properties of hot rolled seamless steel tubes for low temperature service piping are essential for evaluating their strength and suitability for specific applications. GB/T 18984 provides standards for these properties. The table below presents the required mechanical properties.
| Property | Minimum Value |
|---|---|
| Tensile Strength (MPa) | 420 |
| Yield Strength (MPa) | 265 |
| Elongation (%) | ≥ 22 |
| Impact Energy (J) | ≥ 34 |
Steel Grade
Hot rolled seamless steel tubes for low temperature service piping, as specified by GB/T 18984, are available in different steel grades. These grades are designated based on their chemical composition and mechanical properties. The table below lists some commonly used steel grades for these tubes.
| Steel Grade | Chemical Composition | Mechanical Properties |
|---|---|---|
| Grade A | C ≤ 0.22%, Mn 0.70-1.00%, P ≤ 0.020%, S ≤ 0.010% | Tensile Strength ≥ 420 MPa, Yield Strength ≥ 265 MPa, Elongation ≥ 22%, Impact Energy ≥ 34 J |
| Grade B | C ≤ 0.26%, Mn 0.70-1.00%, P ≤ 0.020%, S ≤ 0.010% | Tensile Strength ≥ 420 MPa, Yield Strength ≥ 265 MPa, Elongation ≥ 22%, Impact Energy ≥ 34 J |
Application
Hot rolled seamless steel tubes for low temperature service piping, accordance with GB/T 18984, find application in various industries where reliable transportation of fluids under low temperature conditions is required. These tubes are typically used in pipelines for conveying liquids or gases at temperatures below freezing point. Their exceptional low temperature toughness and corrosion resistance make them suitable for critical applications in industries such as petrochemical, natural gas, and refrigeration.
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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