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40Cr Seamless Alloy Steel Tube is a seamless steel tube made from 40Cr alloy steel. The manufacturing process for 40Cr Seamless Alloy Steel Tube includes hot rolling, cold drawing, and cold rolling. Hot rolling is suitable for large-diameter, thick-walled tubes, while cold drawing and cold rolling are suitable for small-diameter, thin-walled tubes, meeting the needs of various applications.
The A500 Rectangular Pipe Square Steel Tube is a standard specification for cold-formed welded and seamless carbon steel structural tubing, primarily used in building and general structural applications. According to this standard, the A500 Rectangular Pipe Square Steel Tube is widely used in building framing, bridge construction, and other structural projects requiring high strength and stability.
API 5L Grade B Steel Pipe belongs to pipeline steel pipe. API 5L is a set of specifications for pipeline steel pipes formulated by the American Petroleum Institute, and Gr.B is an important steel grade in this standard. API 5L Grade B Steel Pipe can be divided into seamless pipes and welded steel pipes according to different processes.
API 5L Steel Pipe is a pipeline steel pipe. API 5L is a steel pipe standard for oil and gas pipeline transportation, mainly used for long-distance transportation of oil and natural gas. It puts forward strict requirements on the material, manufacturing process, size, tolerance, etc. of steel pipes. API 5L Steel Pipes are divided into two categories: API 5L welded steel pipes and API 5L seamless steel pipes. API 5L seamless steel pipes are mainly used to withstand transportation needs in high pressure, high temperature and highly corrosive environments, while API 5L welded steel pipes are widely used in conventional environments and low-pressure pipelines. The production process, mechanical properties and applicable scenarios of the two are different.
API 5L X42 Steel Pipe is a standard for pipeline steel developed by the American Petroleum Institute (API), representing a medium-strength pipeline steel. API 5L X42 Steel Pipe is available in both seamless steel tube and welded steel pipe varieties. The “42” in “X42” indicates the steel’s minimum yield strength of 42 gigapascals (MPa). API 5L X42 Steel Pipe is typically manufactured using hot rolling or cold bending processes. It exhibits excellent mechanical properties and formability, making it suitable for use in pipeline systems transporting various gases and liquids.
API 5L X52 Steel Pipe is an industrial pipe made of carbon steel, produced by hot rolling process, mainly used for the transportation of gas, water and oil in the petroleum and natural gas industries. Its implementation standards include GB/T9711.1 and API SPEC 5L. The common specifications are 34-Φ3500mm in diameter, 3.0-60mm in wall thickness, and the connection methods include welding, coupling connection and socket connection.
API 5L X65 Steel Pipe is a type of oil and gas transportation supply pipe. The material of API 5L X65 Steel Pipe is X65 steel grade. This pipe is mainly used in the oil and oil and gas industry. Therefore, API 5L X65 material gives the pipe very high resistance to crack growth. In addition, API 5L X65 line pipe also has good weldability. This is because the chemical properties of API 5L X65 material are very basic. This steel has very good toughness at low temperatures when welding. Lastly, this material also has good wear resistance. This makes API 5l X60 line pipe very suitable for high pressure environments and crude oil transportation.
API 5L X70 Steel Pipe is a type of API 5L line pipe. API 5L is a standard for line pipe developed by the American Petroleum Institute (APIPI) to specify the manufacturing, inspection, and use requirements for line tube. The API 5L standard covers various grades of line pipe. For API 5L X70 L485 seamless steel pipe, its implementation standard specifies performance indicators such as a yield strength of 485 MPa, a tensile strength of 620-770 MPa, an elongation of no less than 21%, and impact toughness. Furthermore, the standard requires non-destructive testing (NDT) such as ultrasonic testing and radiographic testing to ensure quality and safety.
ASTM A106 Seamless Steel Tube is a seamless steel tube that complies with the American ASTM A106/ASME SA106 standard. ASTM A106 Seamless Steel Tube is available in three grades: A106 Grade A Seamless Steel Tube, A106 Grade B (Gr.B) Seamless Steel Tube, and A106 Grade C Seamless Steel Tube. A106 Grade A Seamless Steel Tube is preferred for cold roll forming.
ASTM A192 Boiler Tube is a seamless carbon steel boiler tube for ASTM A192/ASME SA192 high-pressure equipment. ASTM A192 Boiler Tubes are mainly used in high-pressure equipment such as high-pressure boilers and superheaters to transport high-temperature and high-pressure steam or hot water. They play an important role in high-pressure steam systems in the power, petrochemical and other industries, and are one of the key components to ensure the energy conversion and transmission efficiency in the production process of these industries.
ASTM A210 Boiler Tube is a seamless medium carbon steel tube for ASTM A210/ASME SA210 boilers and superheaters. ASTM A210/ASME SA210 standard applies to seamless medium carbon steel tubes for boilers and superheaters. ASTM A210 Boiler Tubes include seamless steel tubes with small wall thickness for boiler tubes, boiler flue tubes, safety ends, domes and support tubes, and superheater tubes. The production methods of steel tubes under ASTM A210/ASME SA210 standards include hot rolling, cold drawing and hot expansion. The delivery state is usually hot rolled or heat treated. These production methods ensure the quality and performance stability of the steel tubes during the manufacturing process.
ASTM A519 4130 Honed Steel Tubing for Hydraulic Cylinders is a seamless American standard steel tube made from 4130 alloy steel through cold drawing or cold rolling. It features high dimensional precision and a superior surface finish, making it suitable for precision components in mechanical structures, hydraulic equipment, and other applications.
1. Standard: ASTM A519
2. Materials: 4130
3. Technical: Cold-drawn seamless
4. Technology: Honed & SRB (Skived and Roller Burnished).
5. Application: Used in hydraulic cylinders for heavy machinery, cranes, excavators, and forklifts.
6. OD: 4-260mm WT: 5-25mm
ASTM A53 Steel Pipe is a carbon steel pipe standard developed by the American Society for Testing and Materials (ASTM). Its full name is “ASTM A53 – Seamless and Welded Steel Pipe.” It is primarily classified into two types:
1. ASTM A53 Steel Pipe Seamless (Type S): Produced through hot rolling or cold drawing, it has no welds and offers enhanced pressure resistance, making it suitable for high-pressure applications.
2. ASTM A53 Steel Pipe Welded (Type E/F): Type E is electric resistance welded (ERW), while Type F is furnace welded. These are lower-cost and primarily used for low-pressure fluid transportation.
Carbon steel pipes are steel pipes made primarily of carbon steel (carbon content typically ≤2.1%). They combine high strength, good machinability, and cost advantages, but have poor corrosion resistance. Based on manufacturing processes, they are mainly divided into seamless pipes (hot-rolled/cold-drawn) and welded pipes (straight seam/spiral/high-frequency welded), and can be further subdivided according to application and steel grade.
CK45 Honed Steel Tube is a precision steel tube widely used in industry.
CK45 Honed Steel Tube uses 45# steel as its base material, a carbon structural steel with a moderate carbon content that balances strength and toughness.
CK45 Honed Steel Tube undergoes a honing process to achieve a high surface finish and dimensional accuracy on the inner wall of the tube. The honing process uses tools such as a grinding stone to micro-cut the inner wall of the tube, removing machining marks left by previous processes and creating a uniform cross-weave pattern that facilitates lubricant storage and distribution.
DIN2391 ST52 Honed Tube and Pipes are high-precision cold-drawn seamless steel tubes widely used in hydraulic systems, construction machinery, and automotive precision components. They conform to DIN2391-1 or GB3639-83 standards. Made primarily of carbon steel, DIN2391 ST52 Honed Tube and Pipes undergo cold drawing/cold rolling, pickling, and phosphating processes. They exhibit high precision (inner diameter accuracy up to ±0.02-0.05mm) and low surface roughness, and are capable of withstanding high pressures and resisting deformation.
EN 10305-1 E355 Hydraulic Cylinder Honed Steel Pipe is processed through cold drawing and hot rolling, achieving high precision and strength, making it suitable for mechanical structural components and hydraulic equipment. Hydraulic Cylinder Honed Steel Pipe is available in a wide range of specifications, with inner diameters ranging from 20mm to 400mm and wall thicknesses ranging from 3mm to 50mm.
ERW steel pipe is straight seam electric resistance welded pipe, English Electric Resistance Welding, abbreviated as ERW, used to transport oil, natural gas and other vapor and liquid objects.
Our factory produces and sells various specifications and models of honed steel tube, including precision honed steel tubing, Hydraulic Cylinder Steel Pipe, Hydraulic Honing Steel Pipe, large-diameter honed steel tubes, and small-diameter honed steel pipe.
Our factory has six honed steel tube production lines capable of processing 12-1100mm honed steel tube (for model aircraft and cylinder tubes). The honed steel tubes (for model aircraft and cylinder tubes) produced by our factory typically achieve a roughness of Ra ≤ 0.08μm, correct roundness, and ovality ≤ 0.01mm. This improves surface hardness, eliminates stress-induced deformation, and increases hardness to HV ≥ 4°. A residual stress layer is formed after processing, increasing fatigue strength by 30%, improving fit quality, reducing wear, and extending component life.
Hydraulic cylinder steel pipe, also known as honing pipe, is a core component for transmitting high-pressure fluids in hydraulic systems. It is a cold-drawn or cold-rolled precision seamless steel pipe. Hydraulic cylinder steel pipe is primarily made of carbon steel (such as ST35 and ST45), alloy steel, and 304L stainless steel. It is widely used in hydraulic cylinders, pneumatic cylinders, construction machinery, and automotive precision components.