SS 316 Round Bar
SS 316 Round Bar Manufacturer in India
SS 316 Round Bars are premium corrosion-resistant stainless steel products widely used in industries that require high strength, durability, and resistance to harsh environments. A 316 stainless round bar contains molybdenum, which significantly improves corrosion resistance, especially in chloride and marine environments. Because of this property, stainless steel 316 bar products are commonly used in chemical processing, marine engineering, pharmaceutical manufacturing, and food processing equipment.
Stellar Alloys Steel Pipes and Tubes is a trusted manufacturer and supplier of SS 316 round bar products in India, providing high-quality materials that meet international standards such as ASTM A276 Type 316 and SA479 TP316. Our 316 stainless steel round bar products are manufactured using premium raw materials and advanced production processes to ensure superior mechanical strength, excellent dimensional accuracy, and long service life.
We supply 316 stainless bar and 316 stainless steel bar stock in a wide range of diameters, finishes, and lengths to meet diverse industrial requirements. Whether you require a 316 stainless steel hex bar, 316 stainless steel square bar, or standard 316 round bar, our products are available in hot rolled, bright annealed, and cold drawn finishes.
Our SS 316 round bars are available in diameters ranging from 3 mm to 500 mm, suitable for machining, fabrication, and structural engineering applications. Stellar Alloys Steel Pipes and Tubes ensures strict quality control and provides materials with detailed test certificates. Customers searching for SS 316 round bar price per kg, custom sizes, or export supply can rely on our competitive pricing and reliable global distribution network.
Table of Contents
- Types of SS 316 Round Bar
- ASTM A276 Type 316 Stainless Steel Rod Specification Chart
- Equivalent Material Grades of Stainless Steel 316 Bars
- Hot Rolled Stainless Steel 316 Round Bar Weight Chart
- Stainless Steel 316 Round Bar Price List (Approx.)
- Need SS 316 or SS 316L Round Bars for Industrial Applications?
- Chemical Composition of Stainless Steel 316 Round Bars
- Mechanical Properties of SS 316 Hex and Round Bars
- SS 316 Flat Bar Sizes and Tolerances
- SS 316 vs SS 316L Round Bars
- Quality Assurance & Certifications
- Applications & Uses of SS 316 Round Bar
- Related Stainless Steel Products
- Request a Quote for SS 316 Round Bars
- FAQs
Types of SS 316 Round Bar
We manufacture stainless steel round bars in multiple grades and finishes to meet diverse industrial requirements:
SS 316 Bright Bars
316 Stainless Steel Flat Bar
316 Stainless Steel Hex Bar
316 Stainless Steel Square Bar
SS 316 Black Round Bars
316 Stainless Round Bar
- ASTM A105 Round Bars
ASTM A105 round bars are forged carbon steel bars designed for high-pressure piping applications in temperatures up to 425°C. With a maximum carbon content of 0.35% and manganese range of 0.60-1.05%, these bars deliver minimum tensile strength of 485 MPa and yield strength of 250 MPa. Industries commonly use A105 bars for manufacturing valve bodies, flanges, pump components, and pressure vessel fittings where reliability under stress is critical. - ASTM A350 LF2 Round Bars
ASTM A350 LF2 round bars are low-temperature carbon steel bars engineered for service down to -45°C without losing ductility. The ‘LF’ designation (Low Ferrite) indicates controlled ferrite content to prevent brittle fracture in cryogenic conditions. These bars are essential for LNG plants, refrigeration systems, petrochemical facilities, and offshore platforms where sub-zero temperatures demand impact-resistant materials with Charpy V-notch toughness. - EN8 Round Bars
EN8 round bars (equivalent to 080M40 in British Standard) are medium carbon steel bars with 0.36-0.44% carbon content, offering tensile strength of 550-700 MPa. The higher carbon level compared to mild steel provides enhanced hardness (201 HB) and wear resistance, making EN8 ideal for manufacturing gears, shafts, axles, bolts, and general engineering components requiring moderate strength and good machinability. These bars can be heat-treated for further hardness improvements.
ASTM A276 Type 316 Stainless Steel Rod Specification Chart
Specification Parameter | Details |
International Standards | DIN, JIS, ASME, EN, ASTM, BS, AISI |
Diameter Range | 3 mm – 800 mm |
Flat Bar Thickness | 2 mm – 100 mm |
Surface Finish Options | Cold drawn (bright), centreless ground, peeled, smooth turned, hot rolled, hot rolled annealed, polished, rough turned, slit rolled edge, grinding, black finish |
Manufacturing Process | Cold drawn, forged round bar, hot rolled, cold rolled, rod processing |
Cutting Service | Bars can be cut up to 650 mm as per requirement |
Surface Treatment | Hot rolled pickled, bright finish, sandblasted, cold drawn, hairline finish, polished |
Material Condition | Annealed or hardened and tempered |
Material Grade | Stainless Steel 316 |
UNS Number | UNS S31600 |
Product Standards | ASTM A276, ASME SA276, ASTM A479, ASME SA479 |
Hex Bar Size Range | 2 mm – 100 mm A/F |
Channel Bar Dimensions | 80 × 40 mm – 150 × 75 mm with thickness up to 5–6 mm |
Rectangular Bar Section | Thickness from 3 mm to 12 mm |
Threaded Bar Diameter | ½ inch – 495 mm |
Width Range | 10 mm – 500 mm |
Angle Bar Dimensions | 3 mm × 20 mm × 20 mm up to 12 mm × 100 mm × 100 mm |
Square Bar Size | 4 mm – 100 mm |
Rectangular Bar Size | 33 mm × 30 mm to 295 mm × 1066 mm |
Hollow Bar Dimensions | 32 mm OD × 16 mm ID to 250 mm OD × 200 mm ID |
Hollow Bar Tolerance | H13K9, H8 – H12, K10 – K12 or customized tolerance |
Equivalent Material Grades of Stainless Steel 316 Bars
Grade | Werkstoff No. | UNS Number | JIS Standard | BS Standard | GOST | AFNOR | EN Standard |
SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | — | Z7CND17-11-02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
SS 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17-11-02 / Z3CND18-14-03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
These equivalent material grades help identify stainless steel 316 round bars, hex bars, and threaded rods across different international standards.
Hot Rolled Stainless Steel 316 Round Bar Weight Chart
Diameter (mm) | Weight (kg/m) | Diameter (inch) | Weight (kg/m) |
3 | 0.06 | 1/8″ | 0.06 |
4 | 0.10 | 3/16″ | 0.14 |
5 | 0.16 | 1/4″ | 0.25 |
6 | 0.22 | 5/16″ | 0.39 |
7 | 0.30 | 3/8″ | 0.56 |
8 | 0.40 | 7/16″ | 0.77 |
10 | 0.62 | 1/2″ | 1.00 |
12 | 0.89 | 9/16″ | 1.22 |
14 | 1.22 | 5/8″ | 1.56 |
15 | 1.40 | 11/16″ | 1.89 |
16 | 1.59 | 3/4″ | 2.25 |
18 | 2.01 | 7/8″ | 3.07 |
20 | 2.48 | 1″ | 4.03 |
22 | 3.00 | — | — |
24 | 3.57 | — | — |
25 | 3.88 | — |
— |
This chart helps calculate the weight per meter of SS 316 round bars based on diameter.
Stainless Steel 316 Round Bar Price List (Approx.)
Product Type | Estimated Price |
Hot Rolled SS 316 Round / Square / Flat Bar | $1,000 – $2,000 per Ton |
ASTM 316 Stainless Steel Solid Rod | $2.00 – $3.00 per Kg |
SS 316 Hexagon Bars | $1,000 – $5,000 per Ton |
10mm – 25mm SS 316 Round Bars | $900 – $2,900 per Ton |
Prices may vary depending on bar diameter, surface finish, order quantity, and global stainless steel market rates.
Need SS 316 or SS 316L Round Bars for Industrial Applications?
If you require SS 316 round bars or 316L stainless steel round bars for marine, chemical processing, pharmaceutical, or food processing applications, our technical team can assist you with the correct grade, size, and finish.
Stellar Alloys Steel Pipes and Tubes supplies ASTM A276 / ASTM A479 stainless steel bars in multiple diameters and surface finishes with complete material traceability.
When requesting a quote, please specify:
- Grade: SS 316 or SS 316L
- Diameter and length
- Surface finish (bright, polished, hot rolled, cold drawn)
- Quantity required
- Certification requirements
All materials are supplied with ASTM compliant inspection reports and Mill Test Certificates (MTC).
Chemical Composition of Stainless Steel 316 Round Bars
Element | SS 316 (%) | SS 316L (%) |
Carbon (C) | 0.08 max | 0.030 max |
Manganese (Mn) | 2.00 max | 2.00 max |
Silicon (Si) | 1.00 max | 1.00 max |
Phosphorus (P) | 0.045 max | 0.045 max |
Sulfur (S) | 0.030 max | 0.030 max |
Chromium (Cr) | 16 – 18 | 16 – 18 |
Molybdenum (Mo) | 2 – 3 | 2 – 3 |
Nickel (Ni) | 10 – 14 | 10 – 14 |
Nitrogen (N) | 0.10 max | 0.10 max |
The addition of molybdenum enhances corrosion resistance, especially in marine and chloride environments.
Mechanical Properties of SS 316 Hex and Round Bars
Property | Value |
Density | 8.0 g/cm³ |
Melting Point | 1454 °C (2650 °F) |
Tensile Strength | 515 MPa (75,000 psi) |
Yield Strength (0.2% Offset) | 205 MPa (30,000 psi) |
Elongation | 40% |
Mechanical values shown are minimum requirements per ASTM A276 Type 316 / SA479 TP316 in annealed condition.
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
SS 316 Flat Bar Sizes and Tolerances
Processing Type | Size (Inches) | Size (mm) | ISO Tolerance |
Peeled & Polished | 1.50 – 6.00 | 40 – 150 | h11, DIN 1013 |
Cold Drawn & Polished | 1/8 – 3.00 | 3 – 75 | h8, h9, h10, h11 |
Cold Drawn & Ground | 5/16 – 2.50 | 10 – 75 | h8, h9, h10, h11 |
Peeled & Ground | 3/4 – 2.00 | 20 – 50 | h9, h10, h11 |
Custom diameters and lengths are available on request.
SS 316 vs SS 316L Round Bars
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 | Welded assemblies, chemical plant, pharma |
ASTM Standard | ASTM A276 Type 316 | ASTM A276 Type 316L |
UNS Number | S31600 | S31603 |
Quality Assurance & Certifications
Stellar Alloys Steel Pipes and Tubes follows strict quality control procedures to ensure that every SS 316 stainless steel round bar meets international standards and industry requirements.
All stainless steel bars are manufactured and inspected according to ASTM A276 / ASTM A479 standards and are supplied with complete traceability documentation.
Quality and Inspection Highlights
- ISO 9001:2015 quality management practices
- EN 10204 3.1 / 3.2 Mill Test Certificates (MTC) available on request
- Chemical composition verification
- Mechanical property testing
- Dimensional inspection and tolerance verification
- Surface finish inspection
These quality procedures ensure that SS 316 round bars supplied by Stellar Alloys Steel Pipes and Tubes meet the performance requirements of demanding industries including marine engineering, chemical processing, oil & gas, and pharmaceutical manufacturing.
Applications & Uses of SS 316 Round Bar
Chemical Processing Equipment — Reactors, vessels, and piping handling chloride-containing acids, bleach solutions, and sulphur dioxide environments where SS 304 suffers pitting corrosion. The 2–3% molybdenum in SS 316 is the critical differentiator.
Marine Engineering — Shipbuilding hardware, offshore platform components, and pump shafts in seawater service. SS 316 resists chloride pitting that degrades SS 304 in salt spray and immersion.
Food Processing Machinery — Shafts, agitators, and vessel internals in food and beverage plants. SS 316 meets FDA and EU food-contact requirements and resists corrosion from brine, salt, and acidic food products.
Pharmaceutical Equipment — Process vessels, mixing shafts, and valve components in pharmaceutical manufacturing where FDA-compliant corrosion resistance and CIP/SIP cleaning resistance are required.
Oil & Gas Industry — Valve bodies, pump shafts, and instrumentation components in non-sour environments containing CO2 and chlorides. SS 316 is used where SS 304 would exhibit localised corrosion.
Related Stainless Steel Products
Customers looking for SS 316 round bars often also require other stainless steel components for fabrication and industrial systems. Explore our related stainless steel product range:
- Stainless Steel 316 Pipes & Tubes
- Stainless Steel 316 Pipe Fittings
- Stainless Steel 316 Flanges
- Stainless Steel 316 Sheets & Plates
- Stainless Steel Round Bars
These products are manufactured according to international standards and are available in multiple grades including 304, 304L, 316, 316L, and 321 stainless steel.
Request a Quote for SS 316 Round Bars
Looking for a reliable supplier of SS 316 stainless steel round bars?
Stellar Alloys Steel Pipes and Tubes supplies high-quality stainless steel bars with competitive pricing and worldwide delivery.
Send us your requirement including:
- Grade (316 / 316L)
- Diameter
- Length
- Surface finish
- Quantity
Our team will respond with technical specifications, availability, and the best SS 316 round bar price per kg.
FAQs About Carbon Steel Round Bars
SS 316 round bar is a stainless steel bar containing chromium, nickel, and molybdenum, offering excellent corrosion resistance and strength.
The key difference is the presence of molybdenum in 316 stainless steel, which improves corrosion resistance, especially in marine and chemical environments.
Industries such as marine engineering, chemical processing, food production, oil and gas, and pharmaceuticals commonly use 316 stainless steel bar products.
SS 316 round bars are available in diameters from 3 mm to 500 mm, with standard lengths between 3 m and 6 m.
The SS 316 round bar price per kg typically ranges between ₹260 and ₹360, depending on size, finish, and quantity.