Ragnar Metals and Tubes is a leading manufacturer, supplier, stockist, and exporter of premium quality SS 440 Round Bars. With over 20 years of industry experience and an ISO Certified quality management system, we have established ourselves as a trusted partner for industrial buyers, EPC contractors, OEM manufacturers, engineering companies, and global traders seeking high-performance stainless steel products.
Our SS 440 Round Bars are manufactured using premium-grade raw materials and advanced production techniques to ensure exceptional hardness, wear resistance, corrosion resistance, and mechanical strength. These bars are extensively used across aerospace, automotive, oil and gas, petrochemical, marine, medical, defense, and heavy engineering industries where durability and reliability are critical.
As a globally recognized exporter, Ragnar Metals and Tubes supplies SS 440 Round Bars to customers throughout the UAE, Saudi Arabia, Oman, Qatar, Kuwait, Bahrain, Europe, Africa, Southeast Asia, and many other international markets. Our commitment to quality, competitive pricing, extensive inventory, and on-time delivery has made us one of the preferred suppliers of stainless steel round bars worldwide.
At Ragnar Metals and Tubes, every SS 440 Round Bar undergoes stringent quality inspection procedures before dispatch. We focus on delivering products that comply with international standards and meet the exact requirements of our customers.
SS 440 Round Bar is a high-carbon martensitic stainless steel product known for its superior hardness, excellent wear resistance, good corrosion resistance, and high tensile strength. The material belongs to the 440 stainless steel family and is available in three major grades: 440A, 440B, and 440C.
Among these grades, SS 440C is the most widely used due to its exceptional hardness and wear resistance characteristics. The material can be heat treated to achieve hardness levels up to 60 HRC, making it suitable for demanding applications such as bearings, cutting tools, pump shafts, valves, surgical instruments, molds, and precision-engineered components.
Because of its unique combination of mechanical properties and corrosion resistance, SS 440 Round Bar continues to be one of the most preferred stainless steel materials in industries requiring long-term performance and reliability.
| Property | Details |
|---|---|
| Material Grade | SS 440 |
| UNS Number | S44000 |
| Standard | ASTM A276 |
| Type | Martensitic Stainless Steel |
| Shape | Round Bar |
| Condition | Annealed, Hardened, Tempered |
| Hardness | Up to 60 HRC |
| Corrosion Resistance | Excellent |
SS 440A Round Bars contain lower carbon content and provide excellent corrosion resistance while maintaining good hardness. These bars are commonly used in industrial equipment, food processing machinery, and general engineering applications.
SS 440B Round Bars offer a balance between hardness and corrosion resistance. The material is suitable for manufacturing tools, industrial components, and precision parts requiring reliable mechanical performance.
SS 440C Round Bars are widely recognized for their superior hardness, exceptional wear resistance, and excellent strength. This grade is frequently used for bearings, cutting tools, surgical instruments, aerospace components, and high-performance engineering applications.
| Element | Composition (%) |
|---|---|
| Carbon | 0.60 - 1.20 |
| Chromium | 16.00 - 18.00 |
| Manganese | 1.00 Max |
| Silicon | 1.00 Max |
| Phosphorus | 0.040 Max |
| Sulfur | 0.030 Max |
| Property | Value |
|---|---|
| Tensile Strength | 760 MPa Min |
| Yield Strength | 450 MPa Min |
| Elongation | 12% Min |
| Hardness | Up to 60 HRC |
SS 440 Round Bars offer a unique combination of hardness, strength, wear resistance, and corrosion resistance, making them one of the most preferred martensitic stainless steel products for demanding industrial applications. These bars are specifically designed to perform efficiently in environments where durability and reliability are essential.
SS 440 stainless steel can be heat treated to achieve very high hardness levels, making it suitable for components subjected to continuous wear and mechanical stress.
The high carbon content in SS 440 provides outstanding wear and abrasion resistance, ensuring longer service life even in harsh operating conditions.
The chromium content present in SS 440 stainless steel helps resist corrosion, oxidation, and rust formation in various industrial environments.
SS 440 Round Bars offer excellent tensile strength and impact resistance, making them ideal for precision engineering and heavy-duty applications.
The material can be heat treated to improve hardness and performance, allowing manufacturers to achieve the required mechanical properties.
Due to their excellent wear resistance and strength, SS 440 Round Bars provide long operational life with minimal maintenance requirements.
SS 440 Round Bars are extensively used in automotive manufacturing for shafts, gears, bearings, and precision-machined components requiring high wear resistance and strength.
The aerospace sector utilizes SS 440 Round Bars for critical components that demand durability, dimensional stability, and resistance to wear under extreme operating conditions.
Oil and gas companies use SS 440 Round Bars in valves, pumps, drilling equipment, and offshore systems where corrosion resistance and mechanical reliability are essential.
Marine applications benefit from the corrosion-resistant properties of SS 440 Round Bars in shafts, fittings, fasteners, and specialized hardware.
Surgical instruments, medical devices, and precision equipment are commonly manufactured using SS 440 stainless steel because of its hardness and resistance to corrosion.
Defense manufacturers use SS 440 Round Bars in high-performance equipment, precision tools, and specialized engineering applications.
Ragnar Metals and Tubes supplies SS 440 Round Bars throughout Dubai, Abu Dhabi, Sharjah, Ajman, Fujairah, and Ras Al Khaimah. We serve EPC contractors, fabrication companies, engineering firms, and industrial manufacturers across the UAE.
We regularly export SS 440 Round Bars to Riyadh, Jeddah, Dammam, Jubail, and Yanbu for oil and gas, petrochemical, defense, and heavy engineering projects.
Our products are supplied to major industrial and infrastructure projects across Doha and other regions of Qatar.
We export premium quality SS 440 Round Bars to Muscat, Sohar, Salalah, and industrial zones throughout Oman.
| Specification | Details |
|---|---|
| Grade | SS 440A, SS 440B, SS 440C |
| Standard | ASTM A276, ASTM A479, ASTM A582 |
| UNS Number | S44002, S44003, S44004 |
| Diameter | 5mm to 500mm |
| Length | 1000mm to 6000mm |
| Finish | Bright, Black, Ground, Polished, Peeled |
| Forms | Round, Hex, Square, Flat |
Every SS 440 Round Bar supplied by Ragnar Metals and Tubes undergoes strict quality inspections before shipment. We provide complete traceability and documentation for domestic and export orders.
SS 440 Round Bars are preferred in engineering and industrial sectors because they provide one of the highest hardness levels among stainless steel grades while maintaining good corrosion resistance. Their excellent wear resistance makes them ideal for applications involving continuous friction, impact loading, and mechanical stress.
The ability to achieve hardness levels up to 60 HRC after heat treatment makes SS 440 Round Bars suitable for manufacturing bearings, surgical instruments, cutting tools, pump shafts, molds, dies, valve components, and aerospace parts. These properties help reduce maintenance costs and extend service life.
Ragnar Metals and Tubes is a trusted SS 440 Round Bar Manufacturer, Stockist and Exporter supplying high-quality stainless steel bars worldwide. We maintain a large inventory of SS 440A, SS 440B and SS 440C Round Bars for immediate delivery to industrial customers, EPC contractors, OEM manufacturers and engineering companies.
As a leading SS 440 Round Bar Exporter, we regularly supply materials to customers in the UAE, Saudi Arabia, Oman, Qatar, Kuwait, Bahrain, Europe and Africa. Our team ensures fast delivery, competitive pricing, complete documentation and reliable technical support.
SS 440 Round Bars can achieve hardness levels up to 58-60 HRC after proper heat treatment.
ASTM A276 is the standard specification covering stainless steel bars and shapes including SS 440 Round Bars used in industrial applications.
Yes, SS 440 can be welded using suitable procedures, although preheating and post-weld heat treatment are generally recommended.
SS 440A offers better corrosion resistance, while SS 440C provides higher hardness and wear resistance.
Yes, Ragnar Metals and Tubes can provide third-party inspection certificates upon customer request.
Yes, we offer custom diameters, lengths, finishes, and specifications according to project requirements.
We export SS 440 Round Bars to UAE, Saudi Arabia, Oman, Qatar, Kuwait, Bahrain, Europe, Africa, and other international markets.
Ragnar Metals and Tubes is committed to delivering premium quality SS 440 Round Bars to customers across the globe. With 20+ years of experience, ISO-certified quality systems, advanced manufacturing capabilities, and a strong export network, we continue to serve industries requiring reliable stainless steel solutions. Whether you need standard stock materials or custom specifications, our team is ready to provide high-quality products, technical support, and timely delivery for projects of any size.
