Our production base has completed a major upgrade of its vacuum refining line, aimed at increasing the output of high-cleanliness bearing steel for wind energy, electric vehicle, and precision machinery applications.
The upgrade focuses on tighter control of oxygen content and non-metallic inclusions in GCr15 and similar bearing steel grades. By improving vacuum degassing capacity and process automation, the production base can now maintain more consistent cleanliness across large heats and long production runs.
Meeting the Demand for High-Cleanliness Bearing Steel
Global demand for premium bearing steel is rising. Wind turbine main bearings and EV drivetrain bearings require stricter cleanliness levels than general industrial bearings. Buyers increasingly ask for oxygen content below 10–15 ppm and documented inclusion ratings.
The upgraded vacuum refining line is designed to meet these requirements consistently, not just on trial heats.
What the Vacuum Refining Upgrade Means for Buyers
- Lower oxygen content: Improved vacuum degassing reduces oxide inclusion volume.
- Better consistency: Automated process control reduces heat-to-heat variation.
- Higher capacity: The production base can support larger tonnage orders without sacrificing cleanliness.
- Full documentation: Every heat is supplied with an original mill test certificate, including inclusion rating and oxygen content where specified.
The production base also supports ultrasonic testing for large bars, allowing buyers to detect macro-inclusions before machining.
Expanding Bulk Supply Capabilities
With the upgraded line, the production base is positioned to support bulk orders of high-cleanliness GCr15 bearing steel round bar. Buyers can request trial quantities for qualification, followed by production-scale orders.
For procurement teams planning 2026 supply, the upgrade reduces lead time risk for premium cleanliness grades and provides a reliable alternative to spot-market sourcing.
About Our Production Base
We are an integrated manufacturer and trading group with our own production base and trading company. The production base specializes in special steel, including bearing steel, alloy structural steel, carbon steel, and stainless steel. The trading team supplies global buyers with documented material and export logistics support.
FAQ
Q: What grades are produced on the upgraded vacuum refining line?
A: The line supports GCr15 and related bearing steel grades, as well as selected alloy structural steel grades.
Q: Can buyers request trial quantities before bulk orders?
A: Yes. Trial quantities are available for qualification, followed by production-scale orders.
Q: Does the production base provide inclusion rating and oxygen content?
A: Yes. These values are reported on the mill test certificate when specified in the purchase order.
Q: Is ultrasonic testing available for large bars?
A: Yes. UT can be specified for large-diameter bearing steel bars to detect macro-inclusions.