• High Strength and Durability- Stainless steel hex bars offer excellent tensile and yield strength, making them suitable for high-load and high-stress applications.

• Corrosion Resistance- With alloying elements like chromium, nickel, and molybdenum (in grades like 316), these bars provide superior resistance to corrosion, oxidation, and chemical exposure.

• Geometric Stability-The hexagonal cross-section provides increased surface area and better torque handling, ideal for fasteners and mechanical parts.

• Precision Tolerances- Manufactured with tight dimensional tolerances to ensure consistency, perfect fit, and compatibility in machining and assembly processes.

• Excellent Machinability- Stainless steel hex bars, especially in austenitic grades, are easy to machine, drill, and form, improving productivity in fabrication.

• Versatility in Applications- Widely used across industries such as automotive, construction, aerospace, marine, food processing, and general engineering.

• Temperature Resistance- Capable of maintaining mechanical integrity in both high and low-temperature environments without warping or degradation.

• Customizable Sizes and Grades- Available in a broad range of grades (e.g., 304, 316, 303, duplex, etc.) and can be customized in length, thickness, and finish as per client needs.

• Long Service Life- Thanks to their robust construction and corrosion-resistant properties, stainless steel hex bars offer long-term performance with minimal maintenance.

• Certified Quality- Often backed by international certifications such as ISO 9001, PED, ROHS, and more, ensuring material reliability and compliance with global standards.

• Automotive Industry- Used in the manufacturing of fasteners, shafts, nuts, bolts, and other precision components due to their strength and wear resistance.

• Construction and Infrastructure- Ideal for structural support components, reinforcement, and frameworks where high load-bearing capacity and corrosion resistance are essential.

• Machinery and Equipment Manufacturing- Commonly used in CNC machining and fabrication of parts like couplings, valve components, spindles, and gears.

• Aerospace and Defense- Preferred for critical components requiring dimensional accuracy, strength, and corrosion resistance in extreme environments.

• Marine Applications- Especially in grades like 316, stainless steel hex bars are used in shipbuilding, underwater fasteners, and saltwater-exposed structures due to their superior corrosion resistance.

• Oil & Gas and Petrochemical Industry- Used in equipment such as pumps, valves, and flanges where durability and chemical resistance are vital under high-pressure conditions.

• Food and Beverage Processing- Utilized for hygienic and non-reactive components like mixers, conveyor systems, and structural frames in food-grade stainless steel.

• Medical and Pharmaceutical Equipment- Applied in surgical instruments, support structures, and cleanroom equipment thanks to their hygienic properties and ease of sterilization.

• Textile and Paper Industry- Employed in processing machinery where exposure to moisture and chemicals demands corrosion-resistant materials.

• General Engineering and Fabrication- A go-to material for custom machine parts, frames, and other fabricated components requiring strength, workability, and surface finish.

The manufacturing of Stainless Steel Hex Bars involves a series of carefully controlled processes that ensure high strength, superior surface finish, and dimensional accuracy. At Ambica Steels, we follow a meticulous production cycle, beginning with melting and shaping, followed by rolling and finishing, all designed to meet exacting industry standards and customer specifications.

Rolling Processes: Hot Rolled, Cold Rolled & Cold Drawn

Steel bars, including hex bars, are primarily formed through different rolling methods, each chosen based on the desired mechanical properties and end-use applications:

• Hot Rolling- In this process, stainless steel is rolled at temperatures above its recrystallization point. This alters the internal grain structure and enhances workability, making it ideal for applications where precise tolerances are not critical.
   
• Cold Rolling- Performed at or near room temperature, cold rolling increases the steel’s strength through strain hardening and produces a smoother surface finish. This method is ideal for applications demanding tight tolerances and a polished appearance.
   
• Cold Drawing- Similar to cold rolling, this process also occurs at room temperature but involves pulling the steel through a die to reduce its diameter. The result is a hex bar with improved dimensional accuracy, better surface quality, and enhanced tensile strength—perfect for precision engineering and machining applications.
   

Depending on client requirements, our stainless steel hex bars undergo any of these processes and are then shaped into hexagonal profiles suitable for high-performance use.

Advanced In-House Manufacturing Facilities

Ambica Steels produces stainless steel hex bars at three fully integrated and state-of-the-art facilities located in and around New Delhi. Our cutting-edge infrastructure includes:

• Electric Melting Furnaces
   
• Heat Treatment & Ladle Refining Furnaces
   
• Argon Oxygen Decarburization (AOD) Converter
   
• Continuous Casting Machine
   
• Hot Rolling Mills with multiple stands
   
• Centerless Grinding & Polishing Machines
   
• Bar-to-Bar Drawing and Combined Drawing-Polishing Systems
   
• Ultrasonic Testing & Modern Inspection Lines
   
• Fully equipped Mechanical & Chemical Laboratories
   

All manufacturing processes are carried out under one roof, enabling us to maintain strict quality control and ensure timely delivery. Each product goes through thorough inspections—from raw material selection to final finishing—to ensure it meets client specifications and international standards. If internal defects are suspected, ultrasonic testing is employed to detect and resolve issues, maintaining our commitment to zero-defect deliveries.

At Ambica Steels, our focus on precision, quality, and timely delivery has earned us the trust of global clients across various industries. Our stainless steel hex bars are engineered to perform—crafted with care, tested with rigor, and delivered with integrity

At Ambica Steels, we manufacture Stainless Steel Hex Bars in a wide range of grades to suit diverse industrial applications. Each grade offers unique mechanical and corrosion-resistance properties, making it ideal for specific machining, structural, or environmental demands. Below is a detailed overview of the key grades we offer for our hex bar range:

Grade 303 – Optimal Machinability

Stainless Steel Hex Bars in Grade 303 are engineered for exceptional machinability. As the most machinable of all austenitic stainless steels, 303 is ideal for applications involving extensive CNC or automatic machining. We also offer Improved Machining (IM) versions, providing significantly enhanced tool life and surface finish.

Grade 304/304L – Versatile and Weldable

Our Grade 304 Hex Bars represent the industry standard “18/8” stainless steel, known for excellent forming and welding characteristics. The dual-certified 304/304L version provides added benefits, with 304L offering low carbon content to eliminate the need for post-weld annealing in heavy-gauge components. Also available in an Improved Machining variant for smoother processing.

Grade 316/316L – Superior Corrosion Resistance

Stainless Steel Hex Bars in Grade 316/316L are ideal for environments exposed to chlorides or corrosive media. The addition of molybdenum enhances resistance to pitting and crevice corrosion, making it highly suitable for marine, chemical, and coastal applications. Available in both standard and Improved Machining grades for enhanced productivity.

Grade 420 – High Hardness and Wear Resistance

Grade 420 Hex Bars are martensitic stainless steels that can be hardened up to 50 HRC, offering excellent wear resistance. With a minimum of 12% chromium, it balances corrosion resistance and hardness. This grade is widely used in applications where high surface durability is essential, such as cutting tools and mechanical parts.

Grade 431 – High Strength for Critical Applications

Hex bars in Grade 431 offer the best corrosion resistance among the martensitic stainless steels and can be hardened to around 40 HRC. With high tensile and torque strength, it’s ideal for shafts, bolts, and aerospace components. Note: Due to its high strength, it's not suited for cold forming operations. Available in an Improved Machining version.

Grade 2205 – Duplex Strength and Corrosion Resistance

2205 Duplex Stainless Steel Hex Bars combine the strength of ferritic and corrosion resistance of austenitic grades. They are extensively used in applications demanding both high mechanical strength and superior corrosion resistance, such as chemical processing, offshore structures, and marine environments.

At Ambica Steels, we are committed to delivering unmatched quality, precision, and reliability in every Stainless Steel Hex Bar and Hex Rod we manufacture. With over 50 years of expertise and a dedicated focus on 100% stainless steel, we have become a trusted name across global industries for supplying high-performance hex bars that meet the most demanding specifications.

Our product range spans across 151 stainless steel grades, catering to diverse industrial applications—from structural and automotive to aerospace and marine engineering. Manufactured in advanced facilities with stringent quality control processes, our hex bars offer tight dimensional tolerances, excellent surface finishes, and consistent mechanical properties. Each product is backed by full material traceability and meets global regulatory and performance standards.

What truly sets Ambica Steels apart is our commitment to excellence, recognized through a wide range of prestigious certifications and industry approvals:

• AD 2000 MERKBLATT W0
• ROHS-DIRECTIVE 2011/65/EC
• PED 2014/68/EU
• CE/CPR 305
• AS 9100 D (Aerospace Certification)
• IATF 16949:2016 (Automotive Quality Management)
• NORSOK M-650 (Oil & Gas Standard)
• REACH Regulation (EC1907/2006)
• Lloyd’s Register Certificate for Marine Applications
• Well-Known Steel Maker Certification
• Approved Manufacturer for Steel Making
• IS 6603:2011
• ISO 9001:2015 (Quality Management)
• ISO 14001:2004 (Environmental Management)
• ISO 45001:2018 (Occupational Health & Safety)

With a legacy built on innovation, precision engineering, and customer satisfaction, Ambica Steels continues to be the preferred partner for stainless steel hex bars and rods worldwide

1. What is a stainless steel hex bar?

A stainless steel hex bar is a six-sided solid metal bar made from stainless steel, known for its strength, corrosion resistance, and geometric stability. It is widely used in machining, fasteners, shafts, and structural applications.

2. What are the standard sizes available for hex bars?

Stainless steel hex bars are commonly available in sizes ranging from 12 mm to 65 mm (0.47" to 2.55") across flats, with standard lengths between 2 to 6 meters. Custom sizes and cut-to-length options are also available.

3. What grades of stainless steel are used for hex bars?

Popular stainless steel grades for hex bars include:

• 303 – Best machinability
• 304/304L – General-purpose, corrosion-resistant
• 316/316L – Marine and chemical resistance
• 420 – Hardenable, wear-resistant
• 431 – High strength and torque applications
   
• 2205 Duplex – High strength + corrosion resistance
  Additional grades like 17-4PH, 410, 430F and others are also available based on application.
   

4. What are the typical applications of stainless steel hex bars?

Hex bars are used in:

• Fasteners (nuts, bolts, studs)
• Shafts and gears
• Valves and couplings
• Marine hardware
• Oil & gas components
• Food processing equipment
• Medical and aerospace parts
   

5. How do hot rolled, cold rolled, and cold drawn hex bars differ?

• Hot Rolled: Rolled at high temperature; less precise, but cost-effective.
• Cold Rolled: Rolled at room temperature; better surface finish and strength.
• Cold Drawn: Pulled through dies; highest precision and tensile strength—ideal for machining.
   

6. Can I get customized stainless steel hex bars?

Yes. Manufacturers like Ambica Steels offer customized solutions including:

• Specific lengths, chamfering angles
• Special tolerances (h10, h11, etc.)
• Tailored surface finishes (cold drawn, polished)
• Specific grades based on application/environment
   

7. Are stainless steel hex bars corrosion resistant?

Yes. Thanks to elements like chromium, nickel, and molybdenum, most stainless steel hex bars offer excellent corrosion resistance—especially grades like 304, 316, and 2205 duplex.

8. Are test certificates and quality reports provided?

Reputable manufacturers provide:

• Mill Test Certificates (MTCs)
• Ultrasonic/MPI Test Reports
• Third-party Inspection Reports (if requested)
• Certificates conforming to standards like ASTM, EN, ISO, etc.
   

9. What industries use stainless steel hex bars the most?

Key industries include:

• Automotive & transportation
• Construction & infrastructure
• Marine & offshore
• Oil & gas
• Food & beverage
• Aerospace
• General engineering
   

10. How can I place an order or request a quote?

You can place an inquiry by clicking the “Enquire Now” button on the website or by emailing your specifications to dm@ambicasteels.com. A product expert will assist you with material selection, pricing, and delivery