High Hardness Chrome Forged Grinding Steel Ball Media Beads Use in Mine

• Customization: Available
• Material: Stainless Steel
• Content: 60% ~ 65%
• Model NO.: RJ-2862
• Usage: Grind
• Processing Type: Rolling Type
• Size: 10-150mm
• Color: Black
• Customized: Customized
• Heat Treatment: Oil Quenching+Tempering
• Hardness: 45-68HRC
• Advantage: Long Service Life & Good Wear Resistence
• Certification: ISO9001
• Transport Package: Ton Bags or Steel Drums
• Specification: 1.5-2.5mm, 1.1-1.5mm
• Trademark: RONGJIAN
• Origin: China
• Package Size: 110.00cm * 100.00cm * 100.00cm
• Package Gross Weight: 50.000kg

Product Description

Product Description

Chromium Alloy Cast Iron Grinding Balls

Composition:
Primary alloy: Cr (12-28%)
Microstructure: Chromium carbides (Cr₇C₃) in martensitic/bainitic matrix
Properties:
Hardness: HRC 58-65 (surface)
Impact toughness: 3-8 J/cm²
Wear mechanism: Hard carbides resist abrasion
Applications:
Cement industry (clinker grinding)
Mining (high-abrasion ores like iron/copper)
Advantage: Lowest cost per ton in high-Cr formulations (Cr > 18%)

Product Parameters

Model	Chemical Composition(%)
	C	Si	Mn	Cr	S	P
45#	0.42-0.50	0.17-0.37	0.5-0.8	0.25max	0.035max	0.035max
50Mn	0.48-0.56	0.17-0.37	0.6-1.0	0.25max	0.035max	0.035max
60Mn	0.57-0.65	0.17-0.37	0.7-1.0	0.25max	0.035max	0.035max
65Mn	0.62-0.70	0.17-0.37	0.9-1.0	0.4-0.7	0.035max	0.035max
B2	0.70-0.80	0.17-0.37	0.7-0.8	0.5-0.6	0.035max	0.035max
B3	0.58-0.66	1.60-1.90	0.65-0.8	0.7-0.9	0.035max	0.035max

Company Profile

Pingxiang Rongjian Environmental Protection Chemical Packing Co., Ltd.

Innovative Solutions for Environmental & Industrial Applications
Headquarters: Xiangdong District Industrial Park, Pingxiang City, Jiangxi Province, China
 
Core Capabilities
 Advanced Manufacturing: Custom-designed towers and systems in ceramic, metal, and plastic materials.
Comprehensive Product Portfolio: 200+ specifications including:
• Ceramic/metal/plastic packing materials
• Molecular sieves & activated alumina
• Catalysts & petrochemical additives
• Activated carbon & eco-friendly filtration media
Turnkey Services: Full-scale pollution control and wastewater treatment projects.
Corporate Strengths
  ISO 9001 Certified - Guaranteed quality management system compliance.
 300+ Workforce - Including 100+ specialized engineers and technicians.
30-Acre Production Base - Integrated R&D and manufacturing facilities.
 
Awards & Innovations
 National Science & Technology Achievement Award
Provincial Gold Medal & Famous Brand Product
17 Patented Technologies - Protecting proprietary advancements.

Packing & Delivery

FAQ