Wuxi YUTONG

 The ST52 Hydraulic Precision Tube is engineered for demanding hydraulic systems requiring exceptional strength, dimensional accuracy, and durability. Designed to meet international standards, this tube is ideal for high-pressure applications in industries such as construction, agriculture, automotive, and industrial machinery. Its advanced manufacturing process ensures optimal performance, reliability, and longevity under extreme conditions. Parameter Value/Specification Material Grade : ST52 (Equivalent to S52C / 1050 steel) – High-carbon steel with enhanced tensile strength. Outer Diameter (OD):  Customizable (Typical range: 6 mm – 50 mm) Wall Thickness Precision tolerance: ±0.1 mm (ISO 4200 / EN 10305-4 compliant) Inner Diameter (ID) : Matched to OD and wall thickness (tolerance: ±0.08 mm) Tensile Strength : ≥ 600 MPa Yield Strength:  ≥ 450 MPa Hardness HB : 220 – 250 (Rockwell B scale: 95 – 100) Surface Finish:  Cold-drawn or polished (Ra ≤ 0.8 μm) Hydraulic Pr...

 In the hydraulic field, E355 seamless cold drawn tubes are usually used for material of cylinder barrel , and also used for the production of Honed Tubes and Skived & Roller Burnished Tubes.,It’s also widely used in hydraulic system with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, hydraulic machinery,hydraulic cutting machine, hydraulic equipment, hydraulic tubing, engineering machinery.Cold Drawn Seamless Tube/CDS Tube/Pre-Honed Tube/Ready to Honed Tube/ Description Of E355 Seamless Cold Drawn Tubes Material : E215，E235 ,E355 ，ST52 Delivery Condition : BK, BK+S, GBK, NBK ID Size : 10mm – 1000mm，Length: max 16m Type : Seamless, Hot Rolled, Cold Rolled, Cold Drawn Straightness : ≤ 0.5/1000 Roughness : 0.2-0.4 u Tolerance EXT : DIN2391, EN10305, GB/T 1619 Chemical Composition Steel Grade Chemical Components (%) Steel Name Steel Number C   max. Si   max. Mn   max. P   m...

  SAE4140   Q+T Induction Hardened Chrome Rod  usually manufactured from cold rolled or hot rolled carbon steel 4140 round bars, The surface of the electroplated coating of the chrome-plated rod after treatment has no blackening, peeling, no wrinkling, no pinholes, and the surface of the coating is smooth.Induction Hardened produced by using advanced processing techniques usually on steel rods, for surface removal, polishing, induction hardening, followed by hard chrome plating. 4140 hard chrome plated bar is used extensively by the hydraulic and pneumatic industries, and is employed by other industry sectors for a wide range of applications requiring higher strength. Description Of 4140 Q+T Induction Hardened Chrome Rod Material : SAE4140 AISI4140 SCM440,42Crmo4 4140 Type:  Induction Hardened Chrome Rod/Chrome Plated Bar/Chrome Plated Rod/Nickel-Chrome Plated Rod/ Hollow Chrome Bar /Hollow Chrome Rod Heat Treatment Type:  1) Induction Hardened  2)Q+T(...

  ISO H8 Cylinder tube is a cold-drawn steel tube, steel grade ST52 , in accordance with DIN 2391 HONED with ISO-tolerance range H8 on the internal diameter. Basic material for manufacturing welded hydraulic cylinders particularly suitable for the industrial, mobile and special applications sector. Honing process Of  H8 Cylinder Tube * machining the internal surface of the tube to a precise diameter and surface finish *  using a honing stone to remove material and achieve the desired surface finish  * Resulting in a smooth , cylindrical internal surface with a surface finish of Ra 0.2 – 0.4um ( micro – inches) Description Of H8 Cylinder Honed Tube Material : E355 ST52,STKM 13C Delivery Condition : BK, BK+S, GBK, NBK ID Size  : 20mm – 1500mm Length : max 16m Type : Seamless, Hot Rolled, Cold Rolled,  Cold Drawn Straightness : ≤ 0.5/1000 Roughness : 0.2-0.4 u Tolerance EXT : DIN2391, EN10305, GB/T 1619,GOST 8731,GOST 10...

 42CrMo4 is an alloy steel with high strength, wear resistance and corrosion resistance, making it suitable for manufacturing components that need to withstand high pressure. After hardening treatment, its HRC hardness is high, which can enhance durability. All these are key requirements for hydraulic cylinders. 42CrMo4 harden steel to HRC 58-62 has emerged as a game-changer in the industry, offering unmatched strength, wear resistance, and fatigue life. High Hardness (HRC 58-62): Achieved through precise heat treatment ( quenching + tempering ), ensuring long-term resistance to deformation and pitting. Tensile Strength: Up to 1100 MPa, ideal for high-pressure environments. Corrosion Resistance: Enhanced with surface treatments like nitriding or zn coated, perfect for outdoor or humid applications. 42CrMo4 harden steel Tailored for Hydraulic Cylinders Fatigue Resistance: Reduces crack formation under cyclic loads. Thermal Stability: Maintains performance even in extreme temperatur...

 In industries where strength, corrosion resistance, and precision matter most, 4140 Chrome Hollow Rod emerges as a game-changing material solution. Engineered for demanding applications, our hollow rods combine the robustness of alloy steel with the elegant finish of chromium plating, delivering unmatched value to engineers, manufacturers, and OEMs. Our 4140 Chrome Hollow Rod is designed to excel in high-performance scenarios: Automotive Components: Piston rods, shock absorbers, and steering systems benefit from its fatigue resistance and dimensional stability. Aerospace Hardware: Lightweight yet strong, it’s ideal for landing gear, hydraulic cylinders , and structural supports. Industrial Machinery: Used in linear actuators, conveyor systems, and robotic arms where precision and longevity are critical. Tool & Die Manufacturing: Perfect for molds, jigs, and fixtures requiring wear resistance and easy maintenance. Marine & Offshore: Corrosion-resistant properties make it s...