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ASTM A276 / ASTM A479
ASME SA479, EN 10088-3 on request
SS 304, 304L, 316, 316L,317L. 321, 347, 904L, 15-5PH
Austenitic, ferritic
5mm (3/16″) – 350mm (14″)
Larger diameters on indent basis
Single Random 3–7m
Cut length & double random on request
Black, Peeled, Bright, Polished
Centreless ground finish available
EN 10204 3.1 / 3.2
Batch-wise MTC, PMI & UT on request
Genuine Forged & Rolled Billet
Heat-traceable stock on every bar
100% PMI Checked
Chemistry verified before dispatch
Ex-Stock Dispatch
Common diameters ready to load
Cut & Machined To Drawing
Threading, turning & polishing on request
Global Compliance Docs
PED, NACE MR0175 & DFARS paperwork ready
Quote In 2 Hours
Dedicated desk for price & stock checks
📌 Table of Contents
A round bar is only as reliable as the billet it started life as, and that single fact separates a genuine stockist from a reseller repacking someone else’s reject material. We carry Stainless Steel Round Bar as active ex-stock inventory across Forged Bar, Rod, Hex Bar, Flat Bar, Square Bar, Rectangular Bar, Threaded Bar, Bright Bar, Polished Bar, Cold Drawn Bar and Round Rods, turned and finished to ASTM A276 / A479 without waiting on a fresh melt cycle.
Every bar leaves our yard with EN 10204 3.1/3.2 mill certification, chemistry checked against ASTM limits and dimensions verified against the ordered diameter. With stockholding built across the Middle East, Africa, the Americas and India, a Stainless Steel Round Bar enquiry from any of these regions gets a firm price and stock position back within hours, not days.
Specification of every batch is strictly maintained by our Stainless Steel Round Bar Supplier in India as per ASTM and ASME standards.
Size chart ranging from 2mm to 350mm diameter is offered by our Stainless Steel Round Bar Manufacturer in India.
| Width (mm) | Width (Inch) | Thickness (mm) | Thickness (Inch) |
|---|---|---|---|
| 22 | 7/8 | 17 & 18 | 2/3 to 5/7 |
| 25 | 1 | 5 to 20 | 3/16 to 4/5 |
| 30 | 1-3/16 | 5 to 20 | 3/16 to 4/5 |
| 32 | 1-1/4 | 6 to 20 | 1/4 to 4/5 |
| 35 | 1-3/8 | 5 to 20 | 3/16 to 3/16 |
| 40 | 1-4/7 | 5 to 25 | 3/16 to 1 |
| 45 | 1-7/9 | 5 to 25 | 3/16 to 1 |
| 47 | 1-6/7 | 17, 25 & 32 | 2/3, 1 & 1-1/4 |
| 50 | 2 | 5 to 32 | 3/16 to 1-1/4 |
| 55 | 2-1/16 | 5 to 25 | 3/16 to 1 |
| 57 | 2-1/4 | 32 | 1-1/4 |
| 60 | 2-3/8 | 5 to 35 | 3/16 to 1-3/8 |
| 63 | 2-1/2 | 10 to 30 | 3/8 to 1-3/16 |
| 65 | 2-5/9 | 10 to 30 & 35 | 3/8 to 1-3/16, & 1-3/8 |
| 70 | 2-3/4 | 6 to 25 & 40 | 1/4 to 1, & 1-4/7 |
| 75 | 3 | 8 to 25 | 5/16 to 1 |
| 80 | 3-1/8 | 8 to 20 | 5/16 to 4/5 |
| 90 | 3-1/2 | 8 to 20 | 5/16 to 4/5 |
| 100 | 4 | 8, 10, 12 | 5/16, 3/8, 1/2 |
Ultrasonic Test
Eddy Current Test
Magnet Test
Bend Test
Impact Test
PMI Test
Hardness Test
Grades such as 304, 304L, 316, 316L and 2205 are stocked in bulk by our Stainless Steel Round Bar Supplier in India.
Stainless Steel 304 Round Bar
Stainless Steel 304L Round Bar
Stainless steel 310 Round Bar
Stainless Steel 316 Round Bar
316L Stainless Steel Round Bar
Stainless steel 317l Round Bar
Stainless steel 321 Round Bar
Stainless Steel 347 Round Bar
Stainless Steel 904l Round Bar
15-5 PH Stainless Steel Round Bar
Types including bright, black, peeled and polished bars are readily available through our Stainless Steel Round Bar Supplier in India.
Applications across automobile, construction and chemical industries are well served by our Stainless Steel Round Bar Manufacturer in India.
Oil & Gas Piping
Chemical & Fertilizer Plant
Pharmaceutical & Food Processing
Marine & Shipbuilding
Automotive & Fasteners
Construction & Architecture
Power & Utility Plant
Pulp & Paper Industry
| Diameter in MM | Weight Per Meter (Kg) | Diameter (Inch) | Weight per metre (kg) |
|---|---|---|---|
| 5 | 0.16 | 1/4 | 0.25 |
| 4 | 0.10 | 3/16 | 0.14 |
| 7 | 0.30 | 3/8 | 0.56 |
| 3 | 0.06 | 1/8 | 0.06 |
| 6 | 0.22 | 5/16 | 0.39 |
| 10 | 0.62 | 1/2 | 1.00 |
| 8 | 0.40 | 7/16 | 0.77 |
| 14 | 1.22 | 5/8 | 1.56 |
| 12 | 0.89 | 9/16 | 1.22 |
| 16 | 1.59 | 3/4 | 2.25 |
| 15 | 1.40 | 11/16 | 1.89 |
| 20 | 2.48 | 1 | 4.03 |
| 18 | 2.01 | 7/8 | 3.07 |
Density values across all grades are consistently maintained by our Stainless Steel Round Bar Stockist in Mumbai.
Density: 8.0 g/cm³
Density: 8.0 g/cm³
Density: 8.0 g/cm³
Density: 8.0 g/cm³
Density: 8.0 g/cm³
Density: 8.0 g/cm³
Density: 7.95 g/cm³ (slightly lighter)
Density: 7.8 g/cc (lightest in this range)
| Condition | Diameter Range (Inch) | Tolerance |
|---|---|---|
| Hot Rolled | Over 2.5 to 3.5, incl | + 3/64″ |
| Hot Rolled | Over 3.5 to 4.5, incl | + 0.0625″ |
| Hot Rolled | Over 4.5 to 5.5, incl | + 5/64″ |
| Hot Rolled | Over 5.5 to 6.5, incl | + 0.125″ |
| Hot Rolled | Over 6.5 to 8, incl | + 5/32″ |
| Hot Rolled | Over 8 to 12, incl | + 0.1875″ |
| Hot Rolled | Over 12 to 15, incl | + 7/32″ |
Tolerance levels for hot rolled and cold drawn bars are closely monitored by our Stainless Steel Round Bar Stockist in Mumbai.
| Condition | Size Range (Inch) | Tolerance |
|---|---|---|
| Cold Finish | 0.0625 to 0.3125, excl | +/- 0.001″ |
| Cold Finish | 0.3125 to 0.500, excl | +/- 0.0015″ |
| Cold Finish | 0.500 to 1, excl | +/- 0.002″ |
| Cold Finish | 1 to 1.5, excl | +/- 0.0025″ |
| Cold Finish | 1.5 to 3.25, incl | +/- 0.003″ |
| Cold Finish | 3.25 to 4, incl | +/- 0.005″ |
Hardened & Tempered
Annealed
Precipitation Hardening
Refined molten steel cast into billet form
Rolled and drawn through hex dies for near-final size & tight tolerance
Heat treated to relieve stress & restore ductility
Bars straightened for uniform section & length
Cut to length & edges chamfered for safe handling
Surface finish options like 2B, bright and polished are all offered by our Stainless Steel Round Bar Stockist in Mumbai.
Edge condition from hot rolling process
Smooth bright surface from cold drawing
Descaled surface after heat treatment
Tighter tolerance & smoother surface
Outer skin machined off billet
Two-stage machining for uniform diameter
Peeled bar straightened by reeling
Fine machined finish, low roughness
High-shine finish for visible applications
Drawn through dies for size & strength
Finished immediately after hot rolling
Precision ground for tight roundness
HS code documentation for smooth customs clearance is provided by our Stainless Steel Round Bar Exporter team.
HS Code: 7221 00 90
HS Code: 7221 00 90
HS Code: 7221 00 90
HS Code: 7221 00 90
HS Code: 7221 00 90
HS Code: 7222 19 99
HS Code: 7222 19 99
Mechanical properties including tensile and yield strength are tested by our Stainless Steel Round Bar Manufacturer in India before dispatch.
Chemical composition reports for each grade are shared on request by our Stainless Steel Round Bar Exporter division.
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| SS 304 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0–20.0 | 8.0–10.5 | — |
| SS 304L | 0.030 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0–20.0 | 8.0–13.0 | — |
| SS 316 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 |
| SS 316L | 0.030 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 |
| SS 310 | 0.08 | 1.50 | 2.00 | 0.045 | 0.030 | 24.0–26.0 | 19.0–22.0 | — |
| SS 317L | 0.035 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0–20.0 | 11.0–14.0 | 3.0–4.0 |
| SS 321 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0–20.0 | 9.0–12.0 | — |
| SS 347 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0–19.0 | 9.0–13.0 | — |
A genuine bar always carries a heat number that ties back to an EN 10204 3.1/3.2 MTC.
Positive Material Identification confirms chromium, nickel & molybdenum content on the spot.
Cold worked austenitic bar can show mild magnetism, so a magnet test alone can mislead a buyer.
Grade, size and heat number stamped on the bar end should match the accompanying paperwork.
Stainless Steel Round Bar Shipping Lanes We Serve
Damp yard storage without dunnage allows chloride staining and surface pitting to start.
304 bar used in a coastal or chemical line corrodes faster than 316 would in the same service.
Aggressive turning without coolant can locally overheat the surface and reduce corrosion resistance.
Incorrect annealing temperature can precipitate carbides at grain boundaries, weakening the bar.
80mm dia, hot forged, PMI checked, EN 10204 3.1 MTC.
Offshore Oil & Gas Fabricator, Abu Dhabi
ABU DHABI, UAE40mm dia, centreless ground, third-party witnessed inspection.
Water Treatment Equipment Manufacturer, Cape Town
CAPE TOWN, SOUTH AFRICA25mm A/F, cold drawn, PMI verified, EN 10204 3.2.
Chemical Processing Equipment Manufacturer, Riyadh
RIYADH, SAUDI ARABIA30mm dia, NO.4 polish, straightness certified, UT tested.
Shipyard & Marine Fabricator, Lagos
LAGOS, NIGERIA120mm dia, forged, 490 MPa min, EN 10204 3.1 MTC.
Oil & Gas Equipment Manufacturer, Houston, USA
HOUSTON, TEXAS, USA16mm dia, cold drawn & ground, EN 10204 3.1 MTC.
Petroleum Refining Company, Cairo
CAIRO, EGYPTAesteiron maintains its own warehousing network for Stainless Steel Round Bar across the locations below, supplying buyers directly rather than routing orders through a middleman.
Dubai, UAE Stockist Hub
Primary hub coordinating Middle East shipments
Houston, USA Stocking Distributor
Local inventory for oil, gas & petrochemical buyers
Cairo, Egypt Stock Holder
Supply base serving refinery & utility clients across North Africa
Johannesburg, South Africa Stockist Hub
Regional warehouse for fabricators across Southern Africa
Riyadh, Saudi Arabia Distributor
Onward supply channel into the wider Gulf market
Lagos, Nigeria Stocking Distributor
Dedicated desk serving West African process plants
Casablanca & Tangier, Morocco Stockist
Port-side inventory supporting West Mediterranean projects
Muscat, Oman Distributor
Coverage extending across the wider Gulf coastline
Addis Ababa, Ethiopia Distributor
Expanding stockist footprint across East Africa
São Paulo, Brazil Stockist
Industrial supply point serving South American demand
Algiers, Algeria Distributor
Distribution reach across the wider Maghreb belt
Doha, Qatar Distributor
Onward routing into Qatari energy & industrial projects
Buenos Aires, Argentina Stock Holder
Extended reach across the Southern Cone for engineering buyers
Dakar, Senegal Stock Holder
Coastal distribution point covering West Africa
Sharjah, UAE Supplier
Secondary Gulf point for onward regional dispatch
SS 304 and 316 cover the majority of general enquiries, with 316 preferred wherever chloride or acidic exposure is a concern.
Yes, standard random length bar can be cut to size on request, with tolerance confirmed at the time of order.
Bright Bar is cold drawn to a tight tolerance and smooth surface, while Black Bar is left in the hot rolled, mill-scale condition.
Austenitic grades such as 304 and 316 are essentially non-magnetic in the annealed condition, while cold worked bar can show mild magnetism.
Every order ships with an EN 10204 3.1 mill test certificate as standard, with 3.2 third-party witnessed certification, PMI and UT reports available on request.
Why Aesteiron?
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Conclusion
Stainless Steel Round Bar referenced to ASTM A276 / ASTM A479, available across Forged Bar, Rod, Hex Bar, Flat Bar, Square Bar, Rectangular Bar, Threaded Bar, Bright Bar, Polished Bar, Cold Drawn Bar and Round Rods in 304, 316, 321 and 2205 duplex, is the dependable choice for oil & gas, chemical, marine and process-plant fabrication. Buyers across the Middle East, Africa and the Americas trust us as a responsive stockist and supplier for quick price and stock confirmation.
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