High surface finish, smooth inner wall, good formability, suitable for bicycle fork tubes and seat tubes
High dimensional accuracy, uniform wall thickness, stable mechanical properties, suitable for bicycle frame main structure
Strict tolerance control, good concentricity, light weight, suitable for high-end bicycle key components
Material Advantage: Chromium-molybdenum steel is tough with good elasticity and high strength, avoiding high-carbon steel brittleness
Cost Advantage: Lower price and higher cost-performance compared with aluminum alloy of the same weight
Process Advantage: High surface finish for galvanizing (no pits), no cracking during subsequent flanging
Customization Advantage: Supports custom materials and production according to customer drawings
Quality Advantage: 100% factory inspection, material traceability, complete quality certification documents
| Carbon Steel | 10#，20#，35#，45#，S45C, 55#，Q235B, Q235C,Q345D, |
| Alloy Steel | 16Mn（Q345B），20Cr.40Ct,15CrMo,20CrMo,28Cr Mo,30CrMo,35CrMo,42CrMo, |
| other materials | Available according to customer requirements |
| Outer Diameter | 10-120mm |
| Wall Thickness | 1.2-20mm |
| Length Options | Non-fixed length, fixed length, multiple length, even length |
Tensile Testing Machine, Rockwell Hardness Tester, Eddy Current Testing Equipment, Surface Roughness Tester, Outer Diameter Micrometer, Wall Thickness Micrometer, Inner Diameter Dial Gauge,Vernier Caliper
All products undergo strict quality inspection before shipment to ensure they meet international standards and customer requirements.
Material traceability with complete production/testing records per batch
Compensation for customer losses caused by product quality issues
