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EN 10204 3.1 Certified Stock

Stainless Steel Round Bars, Equal Angles & Flat Bars Supplier in Mumbai

Direct mill stockist and exporter in Mumbai. Ready inventory in standard and customized dimensions with 100% material traceability and fast dispatch.

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Stainless Steel Bright Round Bars and Structural Angles Stockyard Mumbai
Dispatch: Mumbai Stock Hub MOQ: 500 kg / Batch

Material Overview & Specifications

Tatvam Overseas Inc is a premier manufacturer representative, stockholder, and exporter of stainless steel long products including Cold Drawn Bright Round Bars, Peeled and Ground Shafts, Hot Rolled Equal Angles, and Slit Flat Bars based in Mumbai, India. We supply precision-engineered long products to pump shaft manufacturers, valve machinists, marine hardware fabricators, and architectural engineering firms worldwide.

Our round bar inventory spans popular austenitic, martensitic, and duplex grades including SS 304, SS 304L, SS 316, SS 316L, SS 410, SS 420, and Duplex 2205. Round bars comply strictly with ASTM A276 and ASTM A479 specifications, offering close diameter tolerances of h9, h11, and k12 for CNC lathe turning and automatic Swiss screw machining. Diameters range from 3 mm miniature wire-drawn rods up to 350 mm heavy forged steel billets.

For structural applications, we maintain ready stock of Stainless Steel Equal Angles (ASTM A276 / EN 10088-3) in sizes from 20x20x3 mm up to 100x100x10 mm, alongside Hot Rolled and Sheared Flat Bars with pickled or polished finishes. These structural profiles offer permanent rust resistance, high structural stiffness, and aesthetic appeal for marine railings, wastewater treatment skids, and architectural facades.

Tatvam Overseas Inc operates high-speed automated precision band saws to provide custom cut-to-length bar billets with clean square cuts and minimal kerf loss. Every bar bundle is tagged with permanent heat identification and accompanied by genuine EN 10204 Type 3.1 Mill Test Certificates verifying mechanical yield, tensile elongation, and Brinell/Rockwell hardness ratings.

Technical Specifications

Standard Specifications ASTM A276, ASTM A479, ASME SA276, EN 10088-3, DIN 17440
Material Grades SS 304, SS 304L, SS 316, SS 316L, SS 410, SS 420, Duplex 2205
Round Bar Diameters 3.0 mm to 350.0 mm (Cold Drawn, Centerless Ground, Peeled, Forged)
Bar Tolerances h9, h11, k12, ASTM A484 Commercial Tolerances
Structural Angle Sizes 20x20x3 mm to 100x100x10 mm Equal Legs, Hot Rolled & Pickled
Flat Bar Sizes Widths: 12 mm to 150 mm | Thicknesses: 3 mm to 25 mm
Surface Finishes Bright Polished, Centerless Ground, Peeled, Hot Rolled Pickled
Quality Certification EN 10204 3.1 MTC, 100% PMI Inspected, Ultrasonic Tested on ≥50mm

Supply & Logistics Capabilities

Minimum Order (MOQ)

500 kg for ready warehouse stock. Custom rolling lots and project consignments from 1 to 5 metric tons.

MTC & Traceability

EN 10204 Type 3.1 Inspection Certificate with 100% heat number correlation and optical emission chemical analysis.

Third-Party Inspection

Coordination with TUV, DNV, SGS, Bureau Veritas, and Lloyds Register for independent physical and dimensional witness.

Custom Processing

In-house CNC laser cutting, waterjet profiling, shearing, plate beveling, and pipe band saw cutting within 48 hours.

Frequently Asked Questions

What is the difference between cold drawn and centerless ground round bars? ↓
Cold drawn bars are pulled through a die, achieving good surface smoothness and h11 tolerance. Centerless ground bars undergo precision abrasive grinding, delivering an exceptionally smooth mirror-like finish with tight h9 diameter tolerances ideal for high-speed shafts and bearings.
Can you cut round bars to exact piece lengths for machining? ↓
Yes, our Mumbai processing center utilizes CNC band saws to cut round bars and shafts to your exact length specifications with strict squareness tolerances, ready for immediate CNC chucking.
What is your Minimum Order Quantity for SS round bars and angles? ↓
Our standard warehouse MOQ is 500 kg across combined sizes or 1 standard commercial bundle. Sample lengths can be accommodated for prototype testing.
Do you supply ultrasonic-tested bars for critical shafting? ↓
Yes, all bars 50 mm in diameter and above are supplied standard with ultrasonic flaw detection (UT) in accordance with ASTM A388 to ensure zero internal voids or pipe shrinkage.
How are polished round bars packed for export shipping? ↓
Polished bars are individually sleeved or wrapped in protective plastic tubing, bundled with heavy steel strapping, and packaged inside sturdy export wooden boxes to prevent transit scuffing.
Fast Quote Response

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Share your required sizes, thickness, schedule, and quantity for immediate wholesale pricing within 2-4 business hours.

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Engineering Resources

Calculate theoretical weights or verify EN 10204 3.1 inspection certificate formatting with our online tools.

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