PRODUCTS
Three Specialist Categories
Each product line is independently engineered and optimised for its specific drilling method.
Product 01
Top Hammer Drilling
Drill steel engineered for percussive top hammer rigs, delivering maximum energy transfer and fatigue resistance in both surface and underground applications.
Product 02
DTH Drilling
Purpose-built drill pipe and casing for down-the-hole hammer systems, optimised for deep-hole accuracy, high torque loads, and extended fatigue life.
Product 03
Rotary Drilling
Heavy-duty steel for rotary drill strings, designed to withstand high compressive and torsional stresses in large-diameter blast hole and geotechnical drilling.
Top Hammer Drill Steel
From shank adaptor to drill bit, we have devoted decades to developing, testing and delivering the optimal materials for all top hammer drill string components — addressing the complex impact, wear and fatigue properties your products demand. High impact fatigue strength (≥1300 MPa), suitable for frequencies of 1,000–3,000 strikes per minute, reducing drill pipe replacement frequency by 30% and lowering overall drilling cost.
Core Advantages
We Also Supply
Finished Products
Beyond raw drill steel — we deliver fully machined, heat-treated and inspected components, ready to install directly into your drill string. Fewer suppliers, faster procurement, guaranteed quality.
Recommended Grades & Chemical Composition
| Grade | C | Si | Mn | Cr | Ni | Mo | Other Elements |
|---|---|---|---|---|---|---|---|
| EN27 | 0.21–0.23 | 0.20–0.35 | 0.65–0.75 | 1.25–1.35 | 2.85–3.00 | 0.22–0.26 | — |
| 23NiCrMo12-5 | 0.21–0.23 | 0.20–0.35 | 0.65–0.75 | 1.25–1.35 | 2.85–3.00 | 0.22–0.26 | — |
| 24CrMo13-6 | 0.20–0.28 | 0.10–0.40 | 0.45–0.70 | 3.00–3.50 | 0–0.03 | 0.45–0.65 | 0–0.05 |
| 722M24 | 0.20–0.28 | 0.10–0.35 | 0.45–0.70 | 2.80–3.30 | 0–0.40 | 0.40–0.60 | — |
| 48CrMoNi4-10 | 0.47–0.50 | 0.20–0.30 | 0.75–0.85 | 1.05–1.20 | 0.43–0.50 | 0.93–1.00 | V 0.10–0.13 |
* All values are mass fraction (%). Composition ranges are indicative; final specifications confirmed per order and certified with full mill test reports.
DTH Drilling Steel
Optimized steel for profitable performance
Fit-for-purpose drill bit steels. Tailored drill tube products. Or a patented steel for cost-efficient impact resistance on par with single remelts. Across the full range of processing and performance requirements, our wide variety of customized DTH drilling steels gives your products — and your business — a lasting competitive edge. Deep hole wear resistance (surface hardness ≥ 45 HRC) and resistance to downhole temperatures above 300°C. Withstand a downhole temperature of 350°C, and eliminate drilling deviation caused by material softening.
Tailored Processing & Material Flexibility
We adapt to your workflow. By precision-controlling material properties and minimizing chemical variations, your heat treatment, welding, machining, and forming processes gain reliability and consistency. Choose from a wide range of grades, shapes, and finishes to simplify integration into your production.
All-Efficient Cost Control & Reliable Delivery
We optimize costs from start to finish. By aligning material performance with your exact needs, we eliminate overengineering and reduce waste. Streamlined logistics and minimal disruptions ensure on-time delivery, while our end-to-end process control guarantees defect-free results so you save time, money, and resources.
Core Advantages
We Also Supply
Finished DTH Products
Beyond raw material — fully machined, heat-treated and inspected DTH components, ready for immediate deployment. One source, zero compromise.
Recommended Grades & Chemical Composition
* All values are mass fraction (%). Composition ranges are indicative; final specifications confirmed per order with full mill test reports.
Rotary Drilling Steel
Specialized Steels for Mining Systems
Your customers depend on the right steel to handle deep drilling without costly stoppages or tooling changes. Whether it is Tricone bits or PDC’s, shaft opening by raise boring, or even within diamond core exploration drilling, we supply optimized materials in bars, tubes or forged rings for some of the most challenging drilling conditions imaginable. The advantages are largely due to our unique ability to ensure minimal alloy variation in every batch we produce — giving manufacturers like you a superior combination of reliability and production economy.
Minimal Alloy Variation & Batch Consistency
We ensure minimal alloy variation in every batch we produce. This gives manufacturers a superior combination of reliability and production economy — reducing scrap, rework and downtime across your entire production line.
Optimized for the Most Challenging Conditions
From Tricone bits and PDC tools to raise boring and diamond core exploration, our steels are engineered for extreme conditions. Supplied as bars, tubes or forged rings — matched precisely to your application and processing route.
Core Advantages
Recommended Grades & Chemical Composition
* All values are mass fraction (%). Composition ranges are indicative; final specifications confirmed per order with full mill test reports.
Forms of Supply
We offer a wide range of grades combined with a very wide range of shapes and sizes — all to provide our customers with a real competitive edge.
Hot-rolled bar
We have established a long-standing leading reputation for products ideal for applications where fatigue strength toughness and wear resistance are critical. Our bar products offer good formability, machinability and weldability — making them a cost-effective solution.
Heat-treated bar
We provide professionally heat-treated bar products through quenching, tempering, and normalizing. These products deliver exceptional mechanical properties with optimized balance of hardness and toughness — ideal for automotive components, construction machinery, and precision tooling.
Hot-forged bar
Manufactured through controlled forging processes at elevated temperatures, resulting in enhanced grain structure and superior mechanical properties. The forging process eliminates internal voids and improves material density — delivering exceptional strength, impact resistance, and fatigue performance.
Bright surface bar
Produced through polishing, turning or grinding processes, these bars offer exceptional surface quality with superior dimensional accuracy and surface finish. The smooth, oxide-free surface reduces subsequent machining operations — particularly suitable for precision mechanical parts and hydraulic cylinder piston rods.
Flat bar and special profiles
We have the ability to supply bar steel in flat shapes as well as in many hundreds of variants of special profiles — helping customers reduce their machining operations and increase productivity.
Borehole hollow bar
Specially engineered hollow bar products featuring precise internal diameter and wall thickness control. These products maintain structural integrity while significantly reducing weight and material costs — widely used in hydraulic systems, pneumatic equipment, drive shafts, and structural components where weight reduction is essential.
Drill tubes
Produced through polishing, turning or grinding processes, these tubes offer exceptional surface quality with superior dimensional accuracy and surface finish. The smooth, oxide-free surface reduces subsequent machining operations and increases production efficiency — particularly suitable for precision mechanical parts, hydraulic cylinder piston rods, shaft components, and other applications requiring stringent surface quality standards.