High Hardness B2 Grinding Rods
- HY
- China
- 20-45 days
- 10000T
Our Forged Grinding balls produced by advanced automatic rolling machine ( Balls from 20mm-70mm) + Labor Air Hammer ( 80mm-150mm) with special Heating treatment and strict quality control systerm , which make our grinding balls high performance
Grinding balls 'Raw Material Purchase : Strategic partnership with standard steel enterprise and sign the long term agreement (50,000 Tons annually ) Purchase directly from Chinese famous standard steel enterprise , such as laigang Group, HBIS, ANSTEEL, XIWANG Special steel .
We have special department of QC teamwork .The QC department director have 10 years experience in this industry . The team is responsible for inspection during production , inspection before delivery .( Forged Steel Grinding balls Surface and core hardness test each day each batch and all will be recorded and filed in documents ) .
Production process :
Raw Material inspection --Blanking--Burr Grinding--Intermediate Frequency Furmace Heating-- Straightening --Quenching Treatment-Tempering Treatment--Inspection--Packaging
Specification:
1) Size: Dia40-140mm Length 3000-6000mm
2) Hardness: HRC 45-55
3) Chemical elements(%)
C. 0.48-0.85 Si: 0.15-0.37 Mn: 0.7-1.0 P: 0.035MAX S: 0.035MAX
Mechanical Properties Table (HRC)
| Diameter (mm) | Surface Hardness | Impact Test ( Ak) | Tensile Strength (MPa/m㎡) |
| ￠40-140 | 45-55 | ≥12 | ≥1000 |
