Pengrui Rock Drill Steel——Breaking Through the Limits of Rock Penetration
Rock Drill Steel
Core Product
Developed for the manufacturing of top-hammer rock drill rods
Key Performance
| Fatigue Resistance |
| Wear Resistance |
| Toughness |
Technical Assurance
| Full Process Intelligent Manufacturing |
| Rigorous Quality Control System |
| Professional R&D Support |
Competitiveness
| Intelligent Processes, Precise Empowerment |
| Outstanding Performance & Reliability |
Category:
Rock Drill Steel for Top-Hammer
Competitive Advantages
-Utilizing full-process intelligent manufacturing technology, we precisely control straightness and internal bore eccentricity, ensuring efficient coordination between drilling tools and drilling rigs, reducing energy loss, and enhancing rock drilling efficiency.
-With optimized alloy composition, our products combine high strength and toughness, adapt to complex geological conditions, and offer extended life cycle.
Product Specification
Cross-section Shape | Application Field | Characteristics |
| Rounded | Surface Mining (e.g., open-pit drilling rigs) | Combines excellent strength and toughness |
| Hexagonal | Underground Excavation (e.g., hydraulic rock drilling rigs) | Provides higher torque transmission capability, meeting high-torque drilling operation demands |
Common production specifications
| Round - Hollow steel for rock drilling | Hexagonal - Hollow Steel for Rock Drilling |
| R32 | H19 |
| R36 | H22 |
| R39 | H25 |
| R46 | H28 |
| R52 | H32 |
| R56 | H35 |
| R60 | H38 |
| R65 | |
| R76 | |
| R87 | |
| Customized production with production tolerances provided by the customer | |
Product Material
Material-Grade | Chemical Composition% | Description | Application | Industrias | Field of application |
23CrNi3MoA | C:0.23 | High-nickel alloy steel with air-hardening properties; excellent carburizing response; after surface hardening, exhibits high fatigue strength and wear resistance; core remains highly tough. | Shankrods,Tapered rods, Extension rods | Geological exploration, Infrastructure, Mining, Tunnel construction | Suitable for rock drilling tools and heavy machinery components in high-wear and high-impact environments |
40SiMnCrNiMo | C:0.40 | High-strength silicon alloy structural steel; excellent overall strength, toughness, and fatigue resistance; suitable for high-frequency impacts and alternating loads. | Politrods, Tapered rods, Integrated rock drilling steel | Tunnel Construction, Geological Exploration, Infrastructure | Suitable for rock drilling tools, key components of engineering machinery, and mining equipment parts in high-impact, high-load environments |
25Cr3MoA | C:0.25 Si:0.30 Mn:0.55 P:0.020 S:0.015 Cr:3.20 Ni:- Mo:0.50 | Air-hardened chromium-molybdenum alloy steel; excellent surface induction hardenability; good carburizing properties; exhibits high fatigue strength and wear resistance after surface hardening. | Shankrods,Tapered rods, Extension rods | Mining, Tunnel Construction, Geological Exploration, Infrastructure | Suitable for rock drilling chisel systems and other accessories in environments with high impact, severe wear, and alternating loads. |
Technical Support & Services
Item | Description |
| Customized Solutions | One-stop service from design, manufacturing to after-sales support, precisely meeting your requirements. |
| Professional Technical Support | A technical team with 20 years of experience, offering real-time consultation and on-site support. |
| International Certification Assurance | ISO 9001:2015 for Quality Management System ISO 14001:2015 for Environmental Management System ISO 45001:2018 for Occupational Health and Safety Management System |
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Contact Information
Email:
pengrui@chinapengrui.com
Address:
No. 566, Hunan Road, Longquan Town, Zichuan District, Zibo City, Shandong Province, China (Shandong Pengrui Rock Drilling Technology Co., Ltd.)
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