Ratnakar Steel India is a leading manufacturer of premium **Stainless Steel Hex Bars**, known for their high tensile strength and superior corrosion resistance. Our hexagonal bars are precision-engineered to meet the demanding needs of the machining, fastener, and heavy engineering industries.

Technical Specifications

We supply SS Hex Bars in various grades including 304, 304L, 316, 316L, and 310S, ensuring high durability and excellent finish for diverse industrial applications.

  • Size Range: 4mm to 100mm (custom sizes available on request)
  • Standard Compliance: ASTM A276, ASTM A479, and ASME SA479
  • Surface Finish: Bright, Polished, Pickled, Cold Drawn, Shot Blasting
  • Applications: Nuts, bolts, valves, and specialized machine components

Stainless Steel Hex Bar Technical Data

Size & Geometry
RANGE: 4mm to 100mm (Across Flats) TOLERANCE: H9, h11, h12, K10, K12 SHAPE: Hexagonal (6-Sided) LENGTH: 3 to 6 Meters / Custom Cut
Available Grades
AUSTENITIC: 304, 304L, 316, 316L, 317L, 321, 310S DUPLEX: F51, F53, F55, 2205, 2507 HIGH NICKEL: Monel, Inconel, Hastelloy, 904L
Technical Ratings
TENSILE STRENGTH: 515 to 800 Mpa HARDNESS: 170 to 210 HB Max TEMP RANGE: Up to 800°C (Grade Dependent)
Surface Finish & Condition
FINISH: Cold Drawn, Polished, Bright, Centerless Ground CONDITION: Solution Annealed, Hardened & Tempered
Key Applications
Fasteners (Nuts/Bolts) Valve Components Machine Tools Chemical & Food Processing
Testing & Compliance
STANDARDS: ASTM A276, A479, ASME SA479 TESTING: PMI, Ultrasonic, Mechanical, Chemical Analysis CERTIFICATION: EN 10204 3.1 / 3.2 (MTC)

Production Standard

Our hex bar manufacturing focuses on dimensional accuracy and straightness. Every bar is produced using state-of-the-art drawing and straightening technology to ensure a seamless fit for your CNC machining needs.

01. Grade Selection

Choosing the right chemical composition (304/316) for specific environmental resistance.

02. Precision Drawing

Cold-drawing the steel to achieve the exact hexagonal geometry and surface hardness.

03. Quality Testing

100% inspection for dimensional accuracy and crack-free surfaces before dispatch.