Precision Round Bars

Cold Rolled Precision Stainless Steel Bars is one of Ambica’s premium product lines. These super finished precision bars are processed using the ultra-modern combined lines and state of the art equipment to make it a useful tool steel. Ambica Steels is one of the leading manufacturer, exporter, and suppliers of Precision Round Bars from India. We are already exporting these products to many countries, including but not limited to, Germany, Italy, Poland, United Kingdom, USA, Canada, Mexico and more.

Ultrasonic Inspection & Eddie Current Testing ensures that the bars are free from any internal defects. The bars are then finished using the specially designed finishing machines which ensure that the size tolerances (including the out of roundness) and surface roughness are achieved as desired.

  • Pump Shafts
  • Hydraulic / Pneumatic Piston Shafts
  • Valve Shafts
  • Cylinder Shafts
  • Boat Shafts
  • Bearing Sized Bars
  • Chrome Plating Quality Bars


Precision round bars are solid bars having a circular or round cross-section. They are largely manufactured from stainless steel, aluminum, carbon steel, case hardening steel, and alloy. These bars are produced by using hot/cold rolling methods and are offered in a variety of sizes.

Custom-made Cold Rolled Precision Stainless Steel Bars is made by Ambica Steels’ premium product lines. They are the result of our ultra-modern machines and equipment placed in the state of the art facilities based in and around India’s capital – New Delhi.

For more than 45 years, Ambica Steels has considered as one of the pioneer manufacturers, suppliers, and exporters of super finished precision round bars in India and abroad. Since 1970’s, we have established ourselves as a niche exporter of premium quality stainless steel products to countries like Germany, Poland, UK, Italy, USA, Mexico, and many more.

The Testing and Ultrasonic Inspection techniques followed at facilities ensure that the cold rolled precision stainless steel bars are free from any faults and internal defects. Our team of expert engineers employs special finishing machines to refine the stainless steel bars and make sure that their surface roughness and size tolerance are attained as desired by the clients.

Size range 8 mm to 75 mm
Size Tolerances f7, f8, h7 and h8
Length 2 meters to 6 meters
Ovality Half of diameter tolerance
Chamfering Available in 30 degrees to 60 degrees through fully automatic both-end chamfering machine
Crack Test Magnetic Particle Inspection (MPI).
Ultrasonic Test 100% tested through Digital Ultrasonic Flaw Detector, as per ASTM A-388, EN 10308 (class 1 to 4), API 6A/ISO 10423:2003-PSL 3, SEP 1920:1984 (class A,B,C), MIL STD 2154
Length Tolerance Available in special cut to length bars in tolerance of -0/+10 mm (-0/+0.5 inch)
Straightness Up to 0.25 mm/meter TIR (0.0015 inch/feet)
Surface Finish Centreless Ground & Belt Polished upto Ra value 0.2 microns (12 RMS) and 24-320 Grit Polished
Heat Treatment Annealed, Solution Annealed, Quenched and Tempered (QT), Double Ageing/Double Tempering
Packaging Packaging is done using a variety of protective materials and distance rings, and then places in the strong plywood boxes to ensure safety of material during transportation


Chemical Composition

Chemicals (Wt. in %)
Carbon 0.07 to 0.15
Silicon <=0.10
Manganese 0.80 to 1.20
Sulphur 0.20 to 0.30
Phosphorus <=0.07

Whilst manufacturing precision round bars, we are mainly focused n offering the highest quality product along with exceptional customer satisfaction and support. For years, our products are known for unsurpassed reliability and careful attention to the order details.

Backed by state-of-the-art facilities and modern production lines, our experienced personnel use the latest technology to seamlessly produce best-in-class stainless steel products in different sizes and specifications with most consistent straightness, roundness, and diameter tolerance in the industry.

Our materials have outstanding machinability characteristics as they are directly sourced from the highest quality mills only. We apply the grinding expertise of our knowledgeable workforce with years of experience in the industry to achieve greater straightness and highly consistent dimensional tolerance of the bars from sides and ends. The routine inspections performed all through the production process ensure ultra-precise tolerance of the length and roundness of the bar.

Ambica Steels is a renowned manufacturer and supplier of precise round stainless steel bars. We use specially engineered processes for attaining optimum hardness and tight tolerance of our products. All our products are manufactured in our avant-garde facilities under a single roof by using the ultra-modern machinery and highly sophisticated equipment like:

  • Bloom/Billet Continuous Casting Machine, 2 stands, 9/16 meter radius
  • Electro Magnetic Stirrer
  • Centerless Grinding/ Bar Peeling/ Polishing machines
  • Ladle Refining Furnace
  • Heat Treatment Furnaces
  • Electric Melting Furnaces
  • Ingot Casting
  • Argon Oxygen Decarburization (A.O.D) Converter
  • Bar-to-Bar & Coil-to-Coil Drawing Machines
  • Bar Hot Rolling Mill with 4 stands (460 mm) and 6 stands (330 mm)
  • Inspection & Finishing lines
  • Schumag Combined Polishing & Drawing machines
  • Modern mechanical chemical & laboratory

We are dedicatedly committed to ensuring on-time delivery of our products. For this reason, our experienced personnel works in flexible shifts to meet the unique needs and requirements of our clients. We work in tandem with the clients to achieve specifications as agreed with the customers.

Ambica Steels pride itself as a customer-centric organization. With our years of hard work and dedication, we have successfully established a healthy bond with our customers for nearly four decades. Our team strictly adheres to the standard industry guidelines to persistently check and monitor the quality of the products. And so, all our stainless steel products are regularly inspected at every production stage to validate any internal defects and accordingly control measures are adopted to deliver the finest quality precision round bars to the clients.

The low carbon precision round bars made by Ambica Steels are known to meet numerous standards required in a wide range of industries. Our continuous inspections followed in all orders by using ultra stringent processes are mainly preferred by clients, such as:

  • Automobiles
  • Woodworking Tools
  • Power Generation
  • Computer
  • Firearms
  • Medical
  • Lawn & Garden
  • Paper & Pulp
  • Commercial
  • Bearing Industry
  • Oil Exploration
  • Aerospace
  • Tools & Fixtures
  • Miscellaneous

Since the establishment of Ambica Steels, we have endeavored to help our clients across the globe by supplying the superior quality stainless steel products with excellent dimensional accuracy and consistency. We are acknowledged as a leader in achieving the most consistent product roundness, straightness, and diameter tolerance in the industry.

At our state-of-the-art facilities, all the equipment and machinery are technologically advanced to produce the international-grade stainless steel products, corresponding to the customer needs. Most of our clients recognize us as the illustrious manufacturer and supplier of high-grade stainless steel products – such as Stainless Steel 303, Stainless Steel 304, Stainless Steel 316, Stainless Steel 420, Stainless Steel 431, and Stainless Steel 2205.

Grade Description
  303 303 grade represents the optimum in machining among the austenitic stainless steels. It is primarily used when production involves extensive machining. 303 is available in Improved Machining grade with machining characteristics significantly higher than that of the standard 303.
  304 304 grade is dual certified as grade 304 and 304L. Grade 304 is the standard “18/8” stainless. It has excellent forming and welding characteristics. Grade 304L, the low carbon version of 304, does not require post-weld annealing and so is extensively used in heavy gauge components. 304 is available in Improved Machining grade with machinability significantly higher than that of the standard 304.
  316 316 grade is dual certified as grade 316 and 316L. 316 is the standard molybdenum-bearing stainless steel, second in importance to 304 amongst the austenitic stainless steels. The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments. It has excellent forming and welding characteristics. 316 is available in Improved Machining grade with machinability significantly higher than that of the standard 316.
  420 420 grade can be hardened by quench-and-temper heat treatment. It contains a minimum of 12 per cent chromium, just sufficient to give corrosion resistance properties. It has good ductility in the annealed condition but is capable of being hardened up to Rockwell Hardness 50HRC, the highest hardness of the 12 per cent chromium grades. Its best corrosion resistance is achieved when the metal is hardened and surface ground or polished. 420 is available in Improved Machining grade with machinability significantly higher than that of the standard 420.
  431 431 grade is a heat treatable martensitic, nickel-bearing grade has the best corrosion resistance properties of all the martensitic grades. It has excellent tensile and torque strength, and good toughness, making it ideally suited to shafting and bolt applications. It can be hardened to approximately 40HRC. Because of its high yield strength, this grade is not readily cold worked and is therefore not recommended for use in operations such as cold heading, bending, deep drawing or spinning. 431 is available as in Improved Machining grade with machinability significantly higher than that of the standard 431.
  2205 2205 grade is the most widely used duplex (ferritic/austenitic) stainless steel grade. It finds applications due to both excellent corrosion resistance and high strength.
The above series offer excellent quality bright round bars at highly competitive and affordable prices to our customers.

Our unparalleled quality hot rolled stainless steel is predominately characterized by the following features:

  • 100% pure stainless steel
  • Premium Quality Carbon Sheet to meet various standards
  • Unsurpassed Reliability
  • Great attention to every order
  • State-of-the-art equipment
  • Low Carbon Steel Quality
  • Standard Tolerance to meet exact requirements
  • Ultra-inspection method followed at each step to ensure special accuracy
  • Superior tensile strength
  • High resistance to corrosion
  • Excellent corrosion resistance
  • Melting, Heating, and Reshaping is performed in a highly controlled environment
  • ISO certification

Established in 1970’s by Mr. CP Gupta with a commitment to serve clients in the most efficient way, Ambica Steels is considered as the leading manufacturer and exporter of precision round steel bars in India as well as abroad. We are fully-dedicated toward creating premium quality steel products at highly competitive prices.

Our ultra-modern facilities located in and around New Delhi exemplify the pledge we have taken to make high grade steel matching the international standards. Our facilities have in-house sophisticated and fully automated equipment and machines to produce finished/semi-finished products in multiple grades.

We, at Ambica Steels, consider our professionalism and customer-focus as our foundation to surpass client desires as the backbone of our years of success. The steel products created at our technologically-advanced facilities include:

  • Precision Round Bars
  • Bright Round Bars
  • Hexagon & Square Bars
  • Flat Bars
  • Hot Rolled Bars
  • Forging Quality Ingots
  • Duplex Stainless Steel
  • Precipitation Hardening Steels (17-4 Stainless Steel)

We have earned ISO 1400:2008 and ISO 9001 2010 certification for our exceptional quality management system. We have further received following accreditations for our dedication to serving clients effectively:

  • AD 2000 MERKBLATT W0
  • BS OHSAS 18001:2007
  • PED 97 23 EC
  • Z AMBICA 1326WL111860)

To know more about our Stainless Steel Precision Round Bars product and other stainless steel products, please enquire now.