Ragnar Metals & Tubes is a leading AISI M42 Round Bar Manufacturer, Stockist and Exporter, supplying premium-quality High Speed Steel (HSS) round bars to industries across the globe. With more than 12 years of manufacturing and export experience, we provide superior-quality AISI M42 Round Bars that comply with international ASTM, AISI and DIN standards. Our products are trusted by customers in the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain and more than 40 countries worldwide.
AISI M42 is an advanced cobalt-based molybdenum high-speed steel that contains approximately 8% cobalt. It is engineered for exceptional wear resistance, superior hot hardness, excellent edge retention and outstanding cutting performance. Compared with conventional M2 High Speed Steel, AISI M42 delivers higher hardness levels after heat treatment and significantly improved performance while machining difficult materials such as stainless steel, titanium alloys, nickel-based alloys and hardened engineering steels.
As a globally recognized AISI M42 Round Bar Exporter, Ragnar Metals & Tubes supplies certified High Speed Steel round bars in multiple diameters, customized lengths and various surface finishes. Our production facilities use advanced melting, forging, rolling and heat treatment technologies to produce bars with refined grain structure, excellent dimensional accuracy and consistent metallurgical properties.
Every AISI M42 Round Bar manufactured by Ragnar Metals & Tubes undergoes comprehensive quality inspections including chemical analysis, hardness testing, ultrasonic testing, dimensional verification and surface quality inspection before dispatch. These rigorous quality control procedures ensure every product delivers reliable performance in demanding industrial applications where precision, durability and wear resistance are essential.
The outstanding combination of high cobalt content, tungsten, molybdenum, chromium and vanadium gives AISI M42 exceptional resistance to heat softening while maintaining excellent toughness. Cutting tools manufactured from AISI M42 can operate at higher machining speeds while maintaining sharp cutting edges for longer periods, resulting in increased productivity and reduced tooling costs.
Our AISI M42 Round Bars are available in hot rolled, forged, annealed, peeled, centerless ground and precision-machined conditions. We also manufacture customized sizes according to customer drawings and project specifications. Every order is supported by complete documentation including Mill Test Certificates, inspection reports and third-party certification whenever required.
With a strong international logistics network, experienced engineering team and customer-focused approach, Ragnar Metals & Tubes has established itself as one of the trusted suppliers of High Speed Steel products worldwide. Our commitment to quality, competitive pricing and on-time delivery enables customers to achieve reliable performance in aerospace, automotive, defence, power generation, oil & gas, tooling and precision engineering industries.
AISI M42 Round Bar is a premium cobalt-bearing High Speed Steel (HSS) round bar designed for manufacturing cutting tools and engineering components that operate under severe machining conditions. With approximately 8% cobalt, AISI M42 provides significantly better hot hardness, wear resistance and edge retention than standard high-speed steels, making it an ideal material for precision machining applications.
The material offers excellent hardness after heat treatment, outstanding resistance to abrasion and exceptional dimensional stability. It is widely used for manufacturing drills, end mills, gear cutters, broaches, reamers, taps, milling cutters, punches, dies, industrial knives and high-performance cutting tools used in aerospace, automotive and heavy engineering industries.
Ragnar Metals & Tubes manufactures certified AISI M42 Round Bars using premium raw materials and advanced production techniques to ensure consistent mechanical properties, excellent machinability and long service life. Our products are supplied with complete material traceability and international quality certifications for critical engineering applications.
| Specification | Details |
|---|---|
| Product | AISI M42 Round Bar |
| Material | AISI M42 High Speed Steel (HSS) |
| Standards | ASTM A600, AISI M42, DIN 1.3247, JIS SKH59 |
| Diameter | 6 mm to 300 mm |
| Length | 3 Meter, 6 Meter or Custom Length |
| Supply Condition | Hot Rolled, Forged, Annealed, Peeled, Ground |
| Heat Treatment | Annealed / Hardened & Tempered |
| Surface Finish | Black, Bright, Peeled, Polished, Centerless Ground |
| Inspection | EN 10204 3.1 / Third Party Inspection |
| Country of Origin | India |
Ragnar Metals & Tubes manufactures premium-quality AISI M42 Round Bars using carefully controlled alloy chemistry in accordance with ASTM A600, DIN 1.3247 and international High Speed Steel standards. AISI M42 contains approximately 8% cobalt, which significantly improves hot hardness, wear resistance and cutting performance during high-speed machining operations. The balanced combination of tungsten, molybdenum, chromium and vanadium produces excellent carbide distribution and exceptional tool life.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 1.05 – 1.15 |
| Chromium (Cr) | 3.50 – 4.25 |
| Tungsten (W) | 1.15 – 1.85 |
| Molybdenum (Mo) | 9.00 – 10.00 |
| Vanadium (V) | 0.95 – 1.35 |
| Cobalt (Co) | 7.75 – 8.75 |
| Manganese (Mn) | 0.15 – 0.40 |
| Silicon (Si) | 0.15 – 0.45 |
| Phosphorus (P) | 0.030 Max |
| Sulphur (S) | 0.030 Max |
| Iron (Fe) | Balance |
After proper hardening and tempering, AISI M42 develops extremely high hardness and superior wear resistance. Its high cobalt content enables the material to retain hardness even under elevated cutting temperatures, making it one of the preferred high-speed steels for heavy-duty machining applications.
| Property | Typical Value |
|---|---|
| Hardness (Heat Treated) | 66 – 70 HRC |
| Density | 8.15 g/cm³ |
| Elastic Modulus | Approximately 210 GPa |
| Compressive Strength | Very High |
| Wear Resistance | Excellent |
| Hot Hardness | Outstanding |
| Impact Toughness | Good |
| Thermal Conductivity | Approximately 22 W/m·K |
| Machinability (Annealed) | Moderate |
| Property | Value |
|---|---|
| Density | 8.15 g/cm³ |
| Melting Range | 1400 – 1450°C |
| Specific Heat | 460 J/kg·K |
| Coefficient of Thermal Expansion | 11.2 × 10⁻⁶ /°C |
| Electrical Resistivity | Approximately 0.58 µΩ·m |
AISI M42 High Speed Steel offers one of the highest hardness levels among conventional HSS grades. Its excellent hot hardness and wear resistance make it particularly suitable for machining difficult materials where long tool life and dimensional accuracy are essential.
At Ragnar Metals & Tubes, AISI M42 Round Bars are manufactured using advanced metallurgical techniques to ensure superior quality, excellent mechanical properties and consistent performance. Every production stage is monitored by experienced engineers to comply with ASTM A600 and international quality standards.
Premium-grade alloying elements including cobalt, molybdenum, tungsten, chromium and vanadium are selected and chemically verified to achieve the precise composition required for AISI M42 High Speed Steel.
The alloy is melted in modern Electric Arc Furnaces under carefully controlled conditions to produce homogeneous steel with excellent cleanliness and uniform chemistry.
Ladle refining and vacuum degassing remove dissolved gases and non-metallic inclusions while improving the metallurgical integrity and overall quality of the steel.
The refined molten steel is cast into premium-quality ingots with controlled solidification to minimize segregation and internal defects.
Forging refines the grain structure, improves toughness, eliminates porosity and enhances the overall mechanical properties of the material.
Forged billets are hot rolled into round bars with precise dimensions, excellent surface finish and uniform mechanical properties.
Controlled annealing relieves internal stresses, improves machinability and prepares the bars for machining or further heat treatment.
Bars may be peeled, straightened, centerless ground or precision machined according to customer specifications to achieve tight tolerances and superior surface quality.
Carefully controlled hardening followed by multiple tempering cycles develops maximum hardness, wear resistance, toughness and red hardness.
Finished AISI M42 Round Bars undergo comprehensive inspection including chemical analysis, hardness testing, ultrasonic testing, dimensional verification and visual inspection before secure export packing.
Thanks to its superior hardness and exceptional resistance to wear, AISI M42 Round Bar is widely used in the manufacture of precision cutting tools and industrial components operating under severe machining conditions.
Ragnar Metals & Tubes is a trusted AISI M42 Round Bar Manufacturer, Stockist & Exporter, supplying premium-quality High Speed Steel Round Bars to customers across the Middle East, Europe, Asia, Africa and other international markets. With over 12 years of manufacturing and export experience, we provide high-performance AISI M42 Round Bars designed for demanding industrial applications requiring exceptional hardness, superior wear resistance and excellent hot hardness.
Our AISI M42 Round Bars are extensively used by OEM manufacturers, cutting tool manufacturers, aerospace companies, automotive industries, heavy engineering organizations and precision machining facilities. We export our products to the United Arab Emirates (UAE), Saudi Arabia, Qatar, Oman, Kuwait, Bahrain and more than 40 countries worldwide with complete export documentation and international quality certifications.
At Ragnar Metals & Tubes, quality is integrated into every stage of manufacturing. Our AISI M42 Round Bars are produced using certified raw materials and advanced manufacturing technology under strict quality management systems. Every production stage is carefully monitored to ensure compliance with ASTM A600, DIN and international quality standards.
We maintain complete traceability throughout the manufacturing process, ensuring every bar meets customer specifications for hardness, dimensional accuracy, wear resistance and metallurgical quality. Our commitment to continuous quality improvement has established us as a preferred supplier for critical industrial applications worldwide.
Each AISI M42 Round Bar is subjected to comprehensive testing before dispatch to ensure compliance with international quality standards and customer specifications.
| Inspection Test | Purpose |
|---|---|
| Chemical Composition Analysis | Verification of alloy chemistry |
| Hardness Testing | Measure Rockwell hardness |
| Tensile Testing | Evaluate mechanical strength |
| Ultrasonic Testing (UT) | Detect internal defects |
| Positive Material Identification (PMI) | Verify material grade |
| Dimensional Inspection | Check tolerances |
| Straightness Inspection | Verify alignment |
| Surface Finish Inspection | Evaluate surface quality |
| Microstructure Examination | Inspect carbide distribution |
| Visual Inspection | Final quality verification |
To ensure safe international transportation, Ragnar Metals & Tubes follows internationally accepted export packaging practices. Every AISI M42 Round Bar is securely packed to prevent corrosion, surface damage and mechanical impact during shipping.
Ragnar Metals & Tubes has developed a strong global reputation as a dependable AISI M42 Round Bar Exporter. We maintain an efficient logistics network that enables timely deliveries to industrial customers worldwide. Our export team handles complete documentation, ensuring hassle-free international shipments.
Looking for a reliable AISI M42 Round Bar Manufacturer, Stockist & Exporter? Ragnar Metals & Tubes supplies premium-quality High Speed Steel M42 Round Bars with certified quality, competitive pricing and fast worldwide delivery. With over 12 years of industry experience, we manufacture and export AISI M42 Round Bars in standard and customized sizes to meet the requirements of aerospace, automotive, tooling, heavy engineering and precision machining industries.
Our experienced technical team assists customers in selecting the most suitable High Speed Steel grade for demanding machining applications. We maintain a large ready stock of AISI M42 Round Bars and export to the United Arab Emirates (UAE), Saudi Arabia, Qatar, Oman, Kuwait, Bahrain and more than 40 countries worldwide with complete export documentation and secure packaging.
Company : Ragnar Metals & Tubes
Experience : 12+ Years
Website : https://ragnarmetals.ae/
Products : High Speed Steel Round Bars, Tool Steel Round Bars, Alloy Steel Round Bars, Stainless Steel Round Bars and Engineering Steel Products.
Export Markets : UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Europe, Asia, Africa, North America & Worldwide.
AISI M42 Round Bar is a premium cobalt-bearing High Speed Steel (HSS) containing approximately 8% cobalt. It is designed for manufacturing high-performance cutting tools requiring exceptional wear resistance, superior hot hardness and excellent edge retention.
AISI M42 offers outstanding hot hardness, excellent wear resistance, superior cutting performance, high compressive strength, exceptional red hardness and longer tool life compared to conventional high-speed steels.
AISI M42 is widely used for manufacturing drills, end mills, broaches, gear cutters, taps, reamers, milling cutters, industrial knives, punches, dies and precision cutting tools.
AISI M42 Round Bars are extensively used in aerospace, automotive, defence, oil & gas, heavy engineering, railway, precision machining, power generation and tooling industries.
Yes. Ragnar Metals & Tubes exports AISI M42 Round Bars to UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain and more than 40 countries worldwide.
We provide EN 10204 3.1 Mill Test Certificates, chemical analysis reports, hardness reports, mechanical test certificates and third-party inspection certificates whenever requested.
AISI M42 generally provides higher hardness and superior wear resistance because of its increased cobalt and molybdenum content, making it ideal for machining extremely hard materials and high-production cutting operations.
Yes. Ragnar Metals & Tubes supplies customized diameters, cut lengths, peeled bars, centerless ground bars and precision-machined AISI M42 Round Bars according to customer drawings.
Every AISI M42 Round Bar undergoes chemical analysis, hardness testing, ultrasonic testing, PMI testing (on request), dimensional inspection, microstructure examination and visual inspection before shipment.
With over 12 years of manufacturing experience, advanced production facilities, certified quality, worldwide export capability, competitive pricing and reliable customer support, Ragnar Metals & Tubes is a trusted supplier of AISI M42 Round Bars.
