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30CrMo Seamless Steel Tube Alloy Pipe is a seamless pipe made of chromium-molybdenum alloy structural steel. It possesses high strength, high toughness, and good hardenability, and is commonly used in the manufacture of high-load mechanical parts and high-pressure pipelines. Its corresponding American standard grade is typically ASTM A519 GR.4130 Seamless Alloy Steel Tube, and the corresponding Japanese grade is SCM430 Seamless Alloy Steel Tube.
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.
Supply AISI 4130 Seamless Pipe and other seamless steel pipes and alloy steel tubes. AISI 4130 Seamless Tube is an important chromium-molybdenum alloy steel pipe, corresponding to the national standard 30CrMo, the production process of SAE 4130 Seamless Pipe mainly includes oblique rolling and extrusion. Oblique rolling is suitable for the production of carbon steel and low-alloy steel pipes, while extrusion is more suitable for the production of high-strength alloy steel pipes.
AISI 4140 Alloy Seamless Steel Pipe is a high-quality alloy structural steel with excellent mechanical properties and processing properties. This steel is identified as 4140 in the US steel grade system, while in China, it is equivalent to the alloy structural steel 42CrMo. Correspondingly, the equivalent grade of 4130 steel in the United States is 30CrMo in China.
Alloy steel pipe is a steel pipe containing alloying elements in the pipe, its main advantage is that the material is excellent, with ordinary steel does not have high strength, corrosion resistance, wear resistance, high temperature resistance, pressure resistance and other properties. We supply seamless pipe，alloy steel pipes ，of various materials and specifications with sufficient inventory. Welcome to discuss cooperation.
ASTM A213 Boiler Tube is a special steel pipe for high-temperature and high-pressure steam pipelines, also known as boiler tubes. It is usually made of carbon steel or alloy steel, with excellent high temperature resistance, corrosion resistance and pressure resistance, and is widely used in petroleum, chemical, electric power, construction and other fields.
ASTM A335 P22 Alloy Steel Pipe is a high-pressure alloy pipe, also known as 10CrMo910 steel pipe, which is a special steel pipe used in high temperature and high pressure environments. It has good thermal strength and oxidation resistance and is widely used in petrochemical, electric power, aerospace and other industrial fields.
ASTM A335 P5 Alloy Steel Pipe is mainly composed of alloy elements and high-quality carbon steel, alloy structural steel or stainless heat-resistant steel. These alloy elements play a key role in the steel pipe manufacturing process and can significantly improve the mechanical properties and heat resistance of the steel pipe. The domestic material corresponding to ASTM A335 P5 Alloy Steel Pipe is usually 1Cr5Mo or Cr5Mo, which has good oxidation resistance, corrosion resistance and organizational stability, and high thermal strength.
ASME SA335/ASTM A335 P9 Alloy Steel Pipe is a ferritic alloy seamless steel pipe for high temperature conditions. The main manufacturing purpose of ASTM A335 P9 Alloy Steel Pipe is to serve high temperature, high pressure and ultra-high pressure boilers. It is widely used to manufacture key components such as superheater tubes, reheater tubes, gas guide tubes and main steam pipes. In the petrochemical industry, the manufacture of high temperature boilers, superheaters, heat exchangers and pipe fittings is also inseparable from ASTM A335 P9 high temperature alloy pipes. It can maintain stable physical and chemical properties under high temperature environment to ensure the safe and efficient operation of related equipment.
A335 P91 Alloy Steel Pipe is equivalent to the national standard 10Cr9Mo1VNb. T91/P91 (10Cr9Mo1VNb). A335 P91 Seamless Steel Pipe not only has high oxidation resistance and high temperature steam corrosion resistance, but also has good impact toughness and high and stable long-lasting plasticity and thermal strength. When the use temperature is lower than 620℃, its allowable stress is higher than that of austenitic stainless steel. Above 550℃, the recommended design allowable stress is about twice that of T9 and 2.25Cr-1Mo steel.
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 A519 GR.4130 Seamless Alloy Steel Tube is a seamless chromium-molybdenum alloy structural steel tube specified in the ASTM standard “Seamless Carbon and Alloy Steel Tubes for Machine Use” (A519/A519M). “4130” is the SAE/AISI steel grade (UNS G41300), specifically designed for manufacturing mechanical parts subjected to high stress and requiring good comprehensive mechanical properties.
ASTM A519 GR.4140 Seamless Alloy Steel Tube is an American standard medium-carbon chromium-molybdenum alloy seamless steel tube, corresponding to the domestic grade 42CrMo. It possesses high strength, high hardenability, and good toughness. This material is commonly used to manufacture high-load-bearing mechanical parts, such as drive shafts, gears, and oil drilling tools.
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.
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.
Hydraulic Honing Steel Pipe is a precision pipe manufactured through a honing process. Its interior surface undergoes a special treatment, resulting in exceptionally high smoothness and dimensional accuracy. Honing is a combined grinding and polishing process that effectively removes microscopic irregularities on the pipe’s interior surface, resulting in a mirror-like finish. Hydraulic Honing Steel Pipe is typically made from high-quality alloy steel or stainless steel and undergoes multiple processing steps to meet the needs of diverse industrial applications.
Schedule 40 Steel Pipe is a commonly used wall thickness grade in American Standard piping systems. It has clear pressure standards and application specifications and is widely used in industries such as the petroleum and chemical industries. SCH40 Steel Pipe is available in welded, seamless, and galvanized versions, depending on the production standards and intended use.