SS 316L Round Bars
SS 316L Round Bars Manufacturer & Supplier in India
Stainless Steel 316L Round Bars are widely used in industries that require excellent corrosion resistance, strength, and durability in harsh environments. Grade 316L stainless steel is a low-carbon version of SS 316, which provides improved weldability and resistance to intergranular corrosion. These round bars are commonly used in marine, chemical processing, oil & gas, pharmaceutical, and food processing industries.
Stellar Alloys Steel Pipes and Tubes is a leading manufacturer and supplier of SS 316L Round Bars in India, offering a wide range of sizes, finishes, and specifications to meet diverse industrial requirements. Our stainless steel 316L bars are produced according to international standards such as ASTM A276, ASTM A479, UNS S31603, and EN 10088-3 to ensure consistent quality and performance.
The presence of chromium, nickel, and molybdenum in AISI 316L stainless steel enhances resistance against pitting and crevice corrosion, especially in chloride environments. This makes SS 316L round bars suitable for marine structures, offshore equipment, and chemical handling systems. These bars are available in different finishes such as bright drawn, black, peeled, polished, and centreless ground.
At Stellar Alloys Steel Pipes and Tubes, we provide SS 316L round bars in various diameters ranging from small precision rods to large forged bars. Stellar Alloys is an ISO 9001:2015 certified manufacturer, and all SS 316L round bars are supplied with EN 10204 3.1 Mill Test Certificates upon request. Our materials undergo strict quality inspection to ensure reliability and performance. We export stainless steel 316L round bars to UAE, Saudi Arabia, USA, UK, Singapore, South Africa, and Australia, offering competitive pricing and reliable supply capability for industries across India and global markets.
Table of Contents
- 316L Stainless Steel Bar Specification
- Types of SS 316L Round Bar
- SS 316L Round Bar Price (Indicative Market Rates)
- Available SS 316L Round Bar Sizes
- Equivalent Grades & Standards
- Cold Finished Tolerances
- Hot Rolled Tolerances
- Chemical Composition
- Weight Chart
- SS 316L Round Bar Price List
- SS 316 vs SS 316L – Key Differences
- Mechanical Properties
- Applications & Uses
- Quality Assurance & Global Supply
- Related Products
- FAQs
316L Stainless Steel Bar Specification
Description | Details |
Product Description | Stainless Steel 316L round bars manufactured in India are supplied with Mill Test Certificates (MTC) and inspection documentation in compliance with EN 10277, EN 10278, and EN 10088-3 standards. |
Specification | EN 10272 / EN 10088-3 – Grade 1.4404 |
International Standards | ASTM, ASME, API, DIN, EN, AISI, UNS, GB, SUS |
Diameter Range | 3 mm to 800 mm |
Available Length | Standard lengths: 3 m – 6 m. Custom cut lengths available on request. |
Bar Finishes | Centreless Ground, Bright Drawn, Rough Turned, Black Finish, Peeled, Polished, Smooth Turned, Annealed, Cold Drawn, Ground Finish |
Dimensional Tolerance | K9, K10, K11, K12, H8, H9, H10, H11, H12, H13 |
Surface Condition | 2B, 2D, No.1, No.3, No.4, HL, BA, 8K, 1D |
Manufacturing Process | Produced through hot rolling or forging methods |
Performance Characteristics | Cold Working Ability: Good • Corrosion Resistance: Excellent • Heat Resistance: Good • Heat Treatment Response: Limited • Hot Working Performance: Moderate • Machinability: Good • Weldability: Very Good |
Value Added Services | Heat treatment, precision bar cutting, chemical milling, turning and polishing, surface machining, shearing, trepanning, precision grinding, rigidizing, and customized packing |
Available Product Forms | Round Bars, Rods, T-Bars, Angles, Channels, Billets, Ingots, Blocks, Profiles, Forgings, Rectangular Bars, Half-Round Bars, Threaded Bars, Hollow Bars, Precision Ground Bars, Triangular Bars |
Compliance | Stainless Steel 316L round bars comply with ISO 15156 / NACE MR0175 requirements for use in corrosive and demanding industrial environments |
Types of SS 316L Round Bar
We manufacture stainless steel round bars in multiple grades and finishes to meet diverse industrial requirements:
SS 316L Round Bar
SS 316L Bright Bar_
SS 316L Black Bar
316 Stainless Steel Square Bar
SS 316L Polished Round Bar
SS 316L Cold Drawn Round Bar
SS 316L Round Bar — Standard form manufactured by hot rolling or cold drawing to ASTM A276. Available in annealed condition. General industrial use.
SS 316L Bright Bar — Cold drawn and centreless-ground to tight dimensional tolerance. Preferred for precision machined components where surface finish is critical.
SS 316L Black Bar — Hot rolled with mill scale surface. Cost-effective for structural and fabrication applications where surface finish is not critical.
SS 316L Forged Round Bar — Forged from billet for improved grain structure. Used for shafts, valve bodies, and high-stress components in oil & gas and chemical service.
SS 316L Polished Round Bar — Ground and polished to mirror or satin finish. Specified for pharmaceutical, food processing, and hygienic equipment.
SS 316L Cold Drawn Round Bar — Drawn through a die at room temperature. Superior dimensional tolerance and surface finish vs hot rolled. Used in precision engineering.
SS 316L Round Bar Price (Indicative Market Rates)
Product Description | Approx. Price (INR) |
SS 316LVM Round Bar – 8.0 mm Diameter | ₹1,290 per kg |
Stainless Steel 316L Round Bar (Average Market Rate – India) | ₹295 per kg |
SS 316L Rod – 1.250″ Diameter (Mumbai Market) | ₹440 per kg |
Note: Prices may vary depending on quantity, finish, and supplier location.
Available SS 316L Round Bar Sizes
Inch Size | Metric Size (mm) |
1/16 | 1.5875 |
3/32 | 2.3825 |
1/8 | 3.175 |
5/32 | 3.9700 |
3/16 | 4.7625 |
7/32 | 5.5575 |
1/4 | 6.35 |
9/32 | 7.1450 |
5/16 | 7.9375 |
3/8 | 9.525 |
7/16 | 11.1125 |
1/2 | 12.7 |
9/16 | 14.2875 |
19/32 | 15.0799 |
5/8 | 15.875 |
11/16 | 17.4625 |
3/4 | 19.05 |
13/16 | 20.6375 |
7/8 | 22.225 |
15/16 | 23.8125 |
1 | 25.4 |
1 1/16 | 26.9875 |
1 1/8 | 28.575 |
1 3/16 | 30.1625 |
1 1/4 | 31.75 |
SS 316L Equivalent Grades and Standards
Grade | UNS | Werkstoff Nr. | JIS | EN | AMS |
Stainless Steel 316L | S31603 | 1.4404 | SUS 316L | X2CrNiMo17-12-2 | AMS 5653 |
Material Grade | AMS Standard | UNS Number | Federal Spec | ASTM Standards |
Stainless Steel 316L (Dual Certified) | AMS 5653 | S31603 | QQ-S-763 | ASTM A276, ASTM A314, ASTM A479 |
Cold Finished SS 316L Round Bar Tolerances
Diameter Range (inches) | Permissible Tolerance |
0.0625 – 0.3125 (exclusive) | ± 0.001″ |
0.3125 – 0.500 (exclusive) | ± 0.0015″ |
0.500 – 1.000 (exclusive) | ± 0.002″ |
1.000 – 1.500 (exclusive) | ± 0.0025″ |
1.500 – 3.250 (inclusive) | ± 0.003″ |
3.250 – 4.000 (inclusive) | ± 0.005″ |
Hot Rolled 316L Round Bar Tolerances
Diameter Range (inches) | Tolerance |
Over 2.5 – 3.5 | +3/64″ |
Over 3.5 – 4.5 | +0.0625″ |
Over 4.5 – 5.5 | +5/64″ |
Over 5.5 – 6.5 | +0.125″ |
Over 6.5 – 8 | +5/32″ |
Over 8 – 12 | +0.1875″ |
Over 12 – 15 | +7/32″ |
Chemical Composition of SS 316L Round Bars (ASTM A276 / AMS 5653)
Element | Composition (%) |
Carbon (C) | 0.03 max |
Manganese (Mn) | 2.00 max |
Silicon (Si) | 0.75 max |
Phosphorus (P) | 0.045 max |
Sulfur (S) | 0.030 max |
Chromium (Cr) | 16.00 – 18.00 |
Nickel (Ni) | 10.00 – 14.00 |
Molybdenum (Mo) | 2.00 – 3.00 |
Nitrogen (N) | 0.10 max |
Copper (Cu) | 1.00 max (AMS 5653 requirement) |
Our stainless steel round bars serve mission-critical applications across multiple industries due to their exceptional strength, corrosion resistance, and reliability in harsh environments:
Common applications include:
- Oil and Gas Industry – Downhole pump shafts, valve stems, instrumentation components, and wellhead equipment
- Chemical Processing Plants – Reactor vessel shafts, agitator components, pump impellers, and corrosion-resistant fasteners
- Marine and Offshore Structures – Propeller shafts, deck equipment, rigging hardware, and saltwater-resistant fittings
- Automotive and Mechanical Engineering – Engine components, transmission shafts, precision machined parts, and suspension elements
- Pump and Valve Manufacturing – Valve stems, pump shafts, piston rods, and high-pressure fittings
- Construction and Structural Frameworks – Architectural supports, railing systems, and load-bearing structural members
- Food Processing Equipment – Mixer shafts, conveyor components, sanitary fittings, and hygienic processing machinery
- Aerospace Components – Landing gear parts, high-strength fasteners, precision machined aircraft components
Weight Chart for Stainless Steel 316L Round Bars
Diameter (mm) | Diameter (inch) | Weight (kg/m) | Weight (lbs/ft) |
1.5875 | 1/16 | 0.01488 | 0.010 |
2.3825 | 3/32 | 0.03571 | 0.024 |
3.175 | 1/8 | 0.06249 | 0.042 |
3.9700 | 5/32 | 0.09672 | 0.065 |
4.7625 | 3/16 | 0.13987 | 0.094 |
5.5575 | 7/32 | 0.19046 | 0.128 |
6.35 | 1/4 | 0.24849 | 0.167 |
7.1450 | 9/32 | 0.31396 | 0.211 |
7.9375 | 5/16 | 0.38688 | 0.260 |
9.525 | 3/8 | 0.55948 | 0.376 |
11.1125 | 7/16 | 0.76185 | 0.512 |
12.7 | 1/2 | 0.99398 | 0.668 |
14.2875 | 9/16 | 1.25587 | 0.844 |
15.875 | 5/8 | 1.55198 | 1.043 |
19.05 | 3/4 | 2.23497 | 1.502 |
22.225 | 7/8 | 3.04296 | 2.045 |
25.4 | 1 | 3.97444 | 2.671 |
31.75 | 1 1/4 | 6.20942 | 4.173 |
SS 316L Round Bar Price List
Product | Size / Diameter | Approx Price (INR) |
SS 316LVM Round Bar | 8 mm | ₹1,290 per kg |
Stainless Steel 316L Round Bar | Standard Industrial Grade | ₹295 per kg |
SS 316L Rod | 1.250 inch diameter | ₹440 per kg |
Pricing Note
Prices shown are indicative market rates and may vary depending on quantity, size, finish, and market conditions. Payment is accepted via LC, TT, and Cheque. International buyers can request pricing in USD or AED. Contact us for export FOB quotes and bulk order pricing.
SS 316 vs SS 316L Round Bars — Key Differences
Property | SS 316 Round Bar | SS 316L Round Bar |
Carbon Content | 0.08% max | 0.030% max |
Sensitization Risk | Yes — at 425–870°C weld zones | Immune — no carbide precipitation |
Post-Weld Heat Treatment | May be required | Not required in most applications |
Typical Use Case | Machined parts, non-welded components in chloride service | Welded assemblies, chemical plant, pharma, marine |
ASTM Standard | ASTM A276 Type 316 | ASTM A276 Type 316L |
UNS Number | S31600 | S31603 |
Need SS 316L Round Bars for Welded, Marine, or Chemical Applications?
Request a quote by specifying Grade (316L), Diameter, Length, and Finish. All bars are supplied according to ASTM A276 / ASTM A479 standards with Mill Test Certificates.
ASTM A276 316L MTC Supplied.
Mechanical Properties of SS 316L Round Bars
Property | Value |
Tensile Strength | 485 MPa (min) |
Yield Strength (0.2% Offset) | 170 MPa (min) |
Elongation | 40% (min) |
Hardness | 95 HRB max |
Note: “Values shown are minimum requirements per ASTM A276 Type 316L / SA479 TP316L in annealed condition.”
Applications & Uses of SS 316L Round Bars
Stainless Steel 316L round bars are widely used across several industries due to their high corrosion resistance, strength, and durability.
Common applications include:
- Chemical Processing Equipment — Reactor vessels, heat exchanger shells, and agitator shafts in plants handling chloride-containing acids and process streams. 316L’s low carbon (0.03% max) prevents sensitization at weld zones — eliminating post-weld annealing requirements in fabricated equipment.
- Marine & Offshore Structures — Pump shafts, valve stems, and structural components in seawater and salt-spray environments. 2–3% molybdenum in 316L resists chloride pitting that degrades 304 and standard 316 in immersion service.
- Oil & Gas Industry — Valve bodies, instrument fittings, and pump shafts in non-sour CO2 and chloride environments. 316L preferred over 316 for welded assemblies where PWHT is impractical.
- Pharmaceutical Equipment — Mixing shafts, agitators, and vessel internals where cGMP hygiene requirements, CIP/SIP cleaning, and TIG-welded joints are mandatory. 316L’s low carbon ensures corrosion resistance is maintained across all weld zones.
- Food Processing Machinery — Shafts, rollers, and structural members in food and dairy processing. 316L meets FDA and EU food-contact material standards.
The presence of molybdenum in 316L stainless steel improves resistance to chloride corrosion, making it ideal for coastal and marine environments.
Quality Assurance & Global Supply
Stellar Alloys Steel Pipes and Tubes is an ISO 9001:2015 certified manufacturer supplying high-quality SS 316L round bars with EN 10204 3.1 / 3.2 Mill Test Certificates available upon request. All materials are manufactured according to ASTM A276 / SA479 TP316L standards and undergo strict inspection procedures including chemical composition testing, mechanical property verification, and dimensional accuracy checks before dispatch.
We supply stainless steel 316L round bars to industries across India and export to UAE, Saudi Arabia, USA, UK, Singapore, South Africa, Australia, and more than 40 countries worldwide, ensuring reliable delivery and consistent material quality.
Related Products
You may also be interested in the following stainless steel products:
- Stainless Steel 316L Pipes & Tubes
- Stainless Steel 316L Pipe Fittings
- Stainless Steel 316L Flanges
- Stainless Steel 316L Sheets & Plates
- Stainless Steel Round Bars
FAQs about SS 316L Round Bars
SS 316L round bar is a low-carbon stainless steel bar made from grade 316L, known for excellent corrosion resistance and weldability.
The key difference is carbon content: SS 316L has a maximum of 0.03% carbon compared to 0.08% max in standard SS 316. This lower carbon prevents sensitization — the grain boundary carbide precipitation that occurs in standard 316 when heated to 425–870°C during welding. SS 316L does not require post-weld heat treatment (PWHT) in most applications, making it the preferred grade for welded fabrications in chemical plants, pharmaceutical equipment, and marine systems where weld zone corrosion resistance must be maintained.
Industries such as marine, chemical processing, pharmaceuticals, oil and gas, and food processing commonly use 316L round bars.
SS 316 round bars are available in diameters from 3 mm to 500 mm, with standard lengths between 3 m and 6 m.
Common standards include ASTM A276, ASTM A479, and UNS S31603.
SS 316L round bars are available in diameters from 3mm (1/8″) up to 800mm, in standard lengths of 3m–6m or custom cut lengths. Available in hot rolled, bright annealed, cold drawn, polished, and centreless ground finishes.
Choose SS 316L when your application involves welding, especially in corrosive environments. The 0.03% max carbon in 316L prevents sensitization — the carbide precipitation at grain boundaries that can occur in standard 316 after welding or exposure to temperatures of 425–870°C. This means 316L welded assemblies do not require post-weld heat treatment (PWHT) to restore corrosion resistance. For non-welded machined parts in corrosive service, standard SS 316 performs equivalently and costs less. Both grades contain the same 2–3% molybdenum for chloride resistance.