316 317 Stainless Steel Square Tube Steel Pipe
Efficient Fluid Transportation
Stainless steel square tubes are ideal for conveying a wide range of fluids, including oil, natural gas, water, gas, and steam, ensuring reliable performance in multiple industries.Lightweight with High Strength
With excellent bending and torsional resistance while maintaining a lighter weight, these tubes provide structural efficiency without sacrificing durability.Versatile Engineering Applications
Due to their combination of strength and reduced weight, square tubes are widely applied in the production of mechanical parts and engineering structures.Durable and Long-Lasting Material
Made of stainless steel, the square tubes offer excellent corrosion resistance and longevity, making them suitable for demanding environments.
Stainless steel pipe is an economical cross-section steel material and a key product in the steel industry. It is widely used in both decorative and industrial applications, and is often used to make stair railings, window guards, handrails, furniture, and more. Common grades include 201 and 304. Due to its hollow cross-section, steel pipe is ideal for conveying liquids, gases, and solids. Furthermore, compared to round steel of the same weight, it offers a higher section modulus and greater bending and torsional strength, making it a crucial material for various machinery and building structures. Stainless steel pipe is inherently metal-saving and economical, making it a key component of high-efficiency steel. Demand is particularly high in industries such as oil drilling, smelting, and transportation. Other industries requiring large quantities of various types of steel pipe include geological drilling, chemical engineering, construction, machinery, aircraft and automobile manufacturing, as well as boilers, medical equipment, furniture, and bicycle manufacturing.
Stainless steel pipe is safe, reliable, hygienic, environmentally friendly, and economical. The successful development of thinner pipe walls and new, reliable, and convenient connection methods offer numerous advantages that are unmatched by other pipe materials.
Stainless steel square tube is a kind of hollow long steel, because the section is square, it is called square tube. A large number of pipes are used for conveying fluids, such as oil, natural gas, water, gas, steam, etc. In addition, when the bending resistance and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures.
Stainless steel square pipe classification: square pipe is divided into two categories: seamless steel pipe and welded steel pipe (seamed pipe). According to the cross-sectional shape, it can be divided into square and rectangular pipes. The widely used round pipes are round pipes, but there are also some semicircular, hexagonal, equilateral triangle, octagonal and other special-shaped pipes.
Seamless steel pipe
Because of their different manufacturing processes, they are divided into two types: hot-rolled (extruded) seamless steel pipes and cold-drawn (rolled) seamless steel pipes. Cold drawn (rolled) tubes are divided into two types: round tubes and special-shaped tubes.
A seamless tube is a long strip of steel with a hollow section and no seams around it.
The types of seamless pipes are as follows:
(1) Seamless pipes for general structure and mechanical structure (GB8162-87)
(2) Seamless tubes for low and medium pressure boilers (GB/T3087-1999)
(3) Seamless tube ST45.8/111 for high pressure boiler (GB5310-85)
(4) Seamless pipes for conveying fluids (GB/T8163-1999)
(5) Cold-drawn or cold-rolled precision seamless pipe (GB3639-83)
(6) Steel pipe for geological drilling (YB235-70)
(7) Oil drilling steel pipe (YB528-65)
Serial number | Name | Symbol | Unit symbols | Meaning |
— | Intensity | Strength refers to the resistance of a metal to plastic deformation and fracture under external forces. | ||
1 | Tensile strength | σ b | MPa | When a metal specimen is stretched, the ratio of the maximum load it bears to the original cross-sectional area of the specimen before breaking is called tensile strength. |
Pb | ||||
σ b=—— | ||||
Fα | ||||
Pb-The maximum load of the sample before breaking(N) | ||||
Fo-The original cross-sectional area of the sample(mm) | ||||
| Bending strength | σbb | MPa | The maximum positive pressure of the broken section when the specimen is broken under the action of concentrated load between the two supports 8PL Circular sample: σ bb=—— π d 8PL Rectangular sample: σ bb=—— 2bh Where, the maximum concentrated load borne by the P-samL-Span between two supporting points (mm) Outside diameter of D-round sample section (mm) Width of specimen with B- rectangular section (mm) Width of specimen with H-rectangle section (mm) | |
Stainless steel pipe is a kind of hollow long round steel. Its scope of application is used as a pipeline for transporting fluids. It is mainly widely used in industrial transportation pipelines such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instrumentation, etc., as well as mechanical structural components, etc. . The stainless steel pipe is made of acid-resistant and heat-resistant steel billets, which are heated, perforated, sizing, hot-rolled and cut. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used as furniture and kitchenware.
