Product Name: High Quality Cold-Rolled Steel Tubes for Piston Rods
Brand: Gilan Hardware Private
Reference Model Series: GH-PR-CRT Series
Model Code Explanation:
Product Overview
Gilan Hardware Private supplies high-quality cold-rolled steel tubes specifically engineered for piston rod applications in hydraulic and pneumatic cylinders. Manufactured using precision cold rolling technology, these tubes offer superior dimensional accuracy, excellent surface finish, and enhanced mechanical properties. Our products are widely used in automotive, industrial machinery, construction equipment, and agricultural machinery sectors.
Key Technical Parameters (Typical)
Materials: 20# / 45# Carbon Steel, 16Mn, Q355B, ST52 (E355), CK45, SAE1020/1045
Outer Diameter Range: Φ15 mm – Φ200 mm (custom sizes available)
Wall Thickness Range: 1.0 mm – 20 mm
Length: Up to 12 meters (or cut-to-length per request)
Inner Diameter Tolerance: H8 – H9 (Precision grade achievable via honing/skiving)
Surface Roughness: Ra ≤ 0.4 – 1.6 μm (depending on finishing process)
Straightness: ≤ 0.3 mm / 1000 mm
Manufacturing Process: Cold Rolled / Cold Drawn / Honed / Skived & Roller Burnished
Standards: DIN 2391, EN 10305-1, ASTM A519, GB/T 8713
Product Advantages
High Precision: Tight tolerances on inner diameter and wall thickness ensure smooth piston movement.
Excellent Surface: Cold-rolled bright surface reduces friction and extends seal life.
High Strength & Durability: Optimized material grades and heat treatment options (annealing, normalizing) improve fatigue resistance.
Customization: Available in various dimensions, materials, and end-finishing treatments (oiled, phosphated, or chrome-plated upon request).
Typical Applications
Hydraulic cylinders for excavators, loaders, and forklifts
Pneumatic cylinder tubes
Printing and textile machinery
Automotive shock absorbers and steering systems
