Seamless Precision Steel Tube

High-pressure seamless steel tubes made from 13CrMo44 chromium-molybdenum alloy, designed for temperatures up to 600°C. Features 440-590 N/mm² tensile strength and excellent mechanical properties for boiler systems, pressure vessels, and chemical processing applications. Delivered in quenched and tempered condition for superior performance.

JIS3445 STKM13A precision cold drawn seamless steel tube measuring 75×3.5mm with excellent mechanical properties including ≥375 MPa tensile strength and ≥215 MPa yield point. Features high dimensional accuracy with outer diameter tolerance down to ±0.03mm, suitable for automotive, machinery, and bicycle components requiring structural integrity and precision manufacturing.

High-precision EN10305-1 seamless steel tubes with OD range 6mm-114.3mm and wall thickness 1mm-15mm. Engineered for automotive hydraulic systems, precision machinery, and cylinder applications. Available in multiple steel grades including E235, ST45, and E355 with various delivery conditions to meet specific mechanical property requirements.

High-performance EN10083-3 42CrMo4+QT seamless precision steel tubes with 655 MPa tensile strength and 415 MPa yield strength. Cold drawn extruded alloy pipes ideal for hydraulic cylinders, heavy machinery, and industrial applications requiring superior durability and mechanical properties.

High-precision cold drawn welded steel tubing manufactured to EN10305-2 E355 standards for hydraulic shock absorber applications. Features smooth internal diameter tolerance, superior surface roughness, and multiple delivery conditions with tensile strength ranging from 450-640 MPa. Ideal for automotive, truck, and off-road vehicle suspension systems requiring durability and lightweight performance.

Precision seamless carbon steel tubes manufactured to EN10305-4 standards for hydraulic and pneumatic power systems. Available in multiple delivery conditions including +N normalized state. Features 340-480 MPa tensile strength, 235 MPa yield strength, and 25% elongation. Ideal for industrial fluid transfer applications requiring dimensional accuracy and reliable performance.

High-performance SAE4140 quenched and tempered alloy steel tube with 48×11mm dimensions, compliant with EN10083-3 standards. Features 28-34 HRC hardness, 655 MPa tensile strength, and excellent wear resistance. Ideal for machinery, automotive, and industrial applications requiring superior strength and durability.

High-precision seamless steel tubes with bright annealed NBK finish, compliant with DIN 2391 and EN 10305-1 standards. Features exceptional dimensional accuracy, high-pressure resistance, and superior internal cleanliness. Ideal for hydraulic systems, automotive components, and machinery requiring 290-630 MPa tensile strength and reliable performance.

High-precision EN10305-1 E255 cold drawn seamless steel pipe with 16x1mm dimensions, designed for automotive hydraulic systems and vibration dampers. Features tight tolerances, excellent surface finish, and superior mechanical properties including 580 MPa tensile strength and 375 MPa yield strength. Certified for industrial applications requiring superior dimensional accuracy and reliability.

JIS3445 STKM11A cold drawn seamless steel tube measuring 37.6×1.6mm with tensile strength of 290 MPa and 35% elongation. Precision engineered for hydraulic systems, automotive applications, and machinery with tight dimensional tolerances and multiple heat treatment options. Certified to JIS G3445 standards with superior surface finish and mechanical performance.

Precision seamless cold-drawn steel tubes manufactured to EN 10305-1 standards with E355 grade steel offering 640 MPa tensile strength. Ideal for hydraulic systems, automotive components, and machinery requiring high precision, clean surfaces, and superior mechanical properties. Available in multiple delivery conditions including cold rolled, stress relieved, and normalized.

EN 10210 E355+BK seamless cold-drawn hydraulic cylinder steel tubes with maximum 22% carbon content and 640 MPa tensile strength. Available in multiple delivery conditions including cold rolled, stress relieved, and annealed. Certified to European standards for structural applications requiring excellent formability and mechanical properties.

High-precision ST52/ST52.3 seamless steel tubes manufactured to DIN 17175 standards through cold drawing and extrusion processes. Designed for boiler applications with pressure ratings up to 9.8 MPa and temperature resistance from 450°C to 650°C. Features superior tensile strength (490-630 N/mm²) and elongation properties for demanding industrial environments including petroleum, chemical processing, and aerospace sectors.

High-quality DIN 2391 ST35 cold drawn extruded metal tubing with 48x11mm dimensions. Features exceptional dimensional accuracy, sturdiness, and toughness for automotive shock absorbers, hydraulic cylinders, and mechanical components. Certified to EN 10305-1 standards with precise chemical composition and mechanical properties.

High-precision cold drawn seamless steel tubes manufactured to DIN2391 ST37.4 standards for automotive and mechanical applications. Features dimensional accuracy, 480 N/mm² tensile strength, and applications in shock absorbers, hydraulic cylinders, and heavy equipment. Certified to EN10305-1 E235 E355 +N standards with phosphate treatment capability.

High-precision seamless steel tubes manufactured to DIN2391 standards for automotive shock absorbers and hydraulic systems. Available in ST35, ST37, ST45, ST52 grades with OD range 6-114.3mm and wall thickness 1-15mm. Features multiple delivery conditions including cold finished, stress-relieved, and normalized options for various application requirements.

High-performance ASTM A519 Grade 4130 seamless hydraulic steel tubes designed for automotive applications. Available in 6-114.3mm OD and 1-15mm wall thickness with maximum 12m lengths. Ideal for hydraulic systems, cylinder components, and precision machinery with certified mechanical properties and competitive pricing.

High-precision seamless steel tubes manufactured to EN10305-1 standards with OD range 6-114.3mm and wall thickness 1-15mm. Available in multiple grades including E235, E255, and E355 for hydraulic systems, automotive components, and precision machinery applications. Certified to DIN2391 and GB/T3639-2009 specifications.

High-precision cold drawn seamless steel tubes compliant with EN10305-1 standard, featuring E235 grade with 340-480 MPa tensile strength and 25% elongation. Designed for automotive hydraulic and pneumatic systems with excellent mechanical properties, clean surfaces, and resistance to deformation under high pressure conditions.

JIS S45C Cylinder Rod / Oil cylinder piston rod 25.4mm Oil cylinder piston rod parameters: Axle diameter: Ø 6~130mm standard length: 2000~7000mm Tensile strength: 570~690 N/mm2 yield strength: >345 N/mm2 Stretch length: >17% Chrome plating: 20Micron±5 Surface roughness: Ra0.2~Ra0.4 Chromium plating hardness: Minimum HV800 Tolerances: f8, h8 Cylinder Rod / Oil cylinder piston rod application: For medium carbon steel piston rod: JIS S45C / DIN CK45 / SAE 1045和JIS S55C,Steel bar