Cold Drawn GB/T18254 ASTM A295 High Carbon Precision Bearing Steel Tube

Cold Drawn GB/T18254 ASTM A295 High Carbon Precision Bearing Steel Tube

Chemcial composition

Heat Treatment:

Forging: 52100 bearing steel is forged at 1950 – 2100ºF (1065 – 1150ºC), and should not be forged below 1700ºF (925ºC.)

A post-forge equalization treatment is recommended at 1375ºF (745ºC) for 4-6 hours followed by air cooling.

Annealing: 52100 bearing steel is annealed at 872°C (1600°F) followed by slowly cooling to reduce cold working or machining stress.

Hardening: 52100 bearing steel is hardened by cold working, or heating and quenching. It can be carburized at 913°C (1675°F)

followed by quenching. It is again heated at 788°C (1450°F) followed by quenching for the second time.

GB/T18254 High Carbon Chromium bearing seamless tubeBearing Steel Tube

ASTM A295 Wearable high-carbon bearing seamless steel tube

ASTM A534 Wearable&cementite bearing seamless steel tube

JIS G4805 High-Carbon Chromium bearing seamless steel tube

Feature: High Dimensional Accuracy, Less Surface Decarburization,

High utilization rate and stable properties

Application: automotive, electrical, instrumentation,aerospace etc.

Product Show

Company Introduction

Packing and Delivery

Quality Control

1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking.

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

FAQ: