Wuxi YUTONG

  SAE 4340 chrome plated rod is a type of round steel rod used in many different industries, such as automotive, construction, aerospace, and especially telescopic custom hydraulic cylinder applications. It has a high tensile strength, so it will not deform when put under pressure. This steel also has a low carbon content, making it solid and durable but lightweight. 4340 steel is one of the most common grades of steel used for machine and manufacturing cylinders applications due to the excellent strength/weight ratio makes it a popular choice for many machinery, vehicles, and structures. The 4340 steel is a type of steel with high strength and toughness. The 4340 round bar Steel is also called “chrome molybdenum” because it has a higher content of chromium and molybdenum than other types of steel. The SAE4340 cylinder round bar after hard chromed has a yield strength of about 100,000 psi, whereas the yield strength for other types of steel ranges from about 60,000 to 80,000 psi....

 As a specialized in custom hydraulic cylinder design and production, YUTONG INDUSTRY has engaged in many telescopic hydraulic cylinder manufacturing especially in three stage hydraulic cylinders . The telescopic three stage hydraulic cylinder telescopic in three stages, with a range of expansion much greater than its actual size. Despite its telescopic design, it can still generate considerable force, making it suitable for heavy-duty applications. This cylinder is compact when retracted, saving valuable space in machinery or equipment. They are usually made of high-grade steel like CK45 or SAE 4140 barrel and rod that can withstand high pressures and harsh environments. The outer surface is usually coated with a protective coating that increases its durability and longevity. Telescopic hydraulic cylinders use hydraulic fluid pressure to extend and retract at all levels. Extension and retraction are seamless for precise operation. And the cylinders efficiently convert hydraulic ...

  E355 ST52 honed tube   is shaped in the form of a hydraulic cylinder barrel to hydraulic fluids allowing for movement of fluids in and out of the grade. These tubes cover the specification of ;ST52 steel   cold drawn tube   ;and precision steel tubes of seamless types. DIN2391 E355 Honed Tube is part of a hydraulic cylinder that has a smooth surface finish on the interior of the bore. DIN 2391 ST52 is a precision mild or low carbon grade. The DIN 2391 ST52 NBK Tube ;is capable of withstanding high temperatures. These tubes are produced in the normalized condition in controlled setups. The ST52 S355 Annealed Tube ;is annealed above the upper transformation point. The annealed tubes showcase good tolerance to reducing environments. The Specifications Of E355 ST52 Honed Tube Material : ST52,ST52.3 Delivery Condition : BK, BK+S, GBK, NBK ID Size  : 20mm – 1500mm Length : max 16m Type : Seamless, Hot Rolled, Cold Rolled, Cold Drawn Str...

 JIS G3445 STKM13C carbon steel tubes are very widely used in various industries for its excellent mechanical properties and chemical composition. In Hydraulic industry, STKM13C is a very common material for hydraulic honed barrel production. Chemical Composition: The chemical composition of JIS G3445 STKM13C is carefully controlled to ensure the material's mechanical properties and performance for custom hydraulic cylinder using. The typical chemical composition is as follows: Carbon (C): 0.10-0.20% Silicon (Si): 0.15-0.35% Manganese (Mn): 0.30-0.60% Phosphorus (P): ≤ 0.035% Sulfur (S): ≤ 0.035% Chromium (Cr): ≤ 0.15% Nickel (Ni): ≤ 0.20% Copper (Cu): ≤ 0.30% Mechanical Properties: The mechanical properties of STKM13C  carbon steel tubes are characterized by its high strength and excellent ductility. The typical mechanical properties are as follows: Tensile Strength: 370-520 MPa Yield Strength: 235 MPa minimum Elongation: 25% minimum Hardness: ≤ 179 HB As a professiona...