As a manufacturer based in Liaocheng, we specialize in high-precision GCr15 / EN31 / 100Cr6 seamless tubes, specifically engineered for bearing races and cages.
Why partner with Haihui Steel for your GCr15 requirements?
Exceptional Spheroidizing Annealing: Our tubes undergo 100% protective atmosphere annealing, achieving a Spheroidizing Grade of 2-3 and hardness of 179-207 HB. This ensures superior machinability for your CNC lines.
Precision Tolerance (±0.03mm to ±0.05mm): Our extreme dimensional control allows you to minimize material removal, significantly reducing your total production cost per piece.
Ultra-Low Oxygen Content ([O] ≤ 10ppm): Using LF+VD refined steel, we guarantee high purity and excellent anti-fatigue performance, meeting international OEM standards.
100% NDT Testing: Every single tube is Eddy Current and Ultrasonic tested before shipment to ensure a zero-defect delivery to your warehouse.
We are already supporting several leading bearing component suppliers in Pune and Rajkot with reliable quality and competitive factory-direct pricing.
Post time: Aug-26-2026