High Nickel Alloy Hexagon Rods
Applications of High Nickel Alloy Hexagon Rods are vast and diverse. They are extensively used in chemical processing equipment, heat exchangers, reactors, marine and offshore structures, aerospace components, and high-temperature machinery. The corrosion resistance, combined with excellent mechanical strength, makes these rods ideal for critical environments where reliability and longevity are essential. Rose Metal Industries ensures timely delivery to clients across India, including Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), and Andaman and Nicobar Islands, as well as to global markets, maintaining international quality standards.
Equivalent grades and dimension charts are provided to ensure compatibility with global applications. For instance, Hastelloy C276 corresponds to UNS N10276, Inconel 625 to UNS N06625, and Monel 500 to UNS N05500. Hexagon rods are offered in various sizes ranging from 6 mm to 200 mm flat-to-flat, with standard lengths of 1000 mm to 3000 mm or custom lengths as per client requirements. Surface finishes include hot-rolled, turned, and polished options to suit specific assembly or aesthetic needs..
Mechanical properties are optimized for industrial performance. Tensile strength ranges from 550 MPa to 900 MPa depending on the grade and temper, with yield strength between 250 MPa and 500 MPa. Elongation is generally above 35%, and hardness varies with the alloy type and processing method. The combination of high strength, ductility, and toughness makes these hexagon rods suitable for demanding applications where both structural integrity and corrosion resistance are critical..
Chemical composition of high nickel alloy hexagon rods is precisely controlled to deliver superior corrosion resistance and mechanical performance. Typical elements include Nickel (Ni), Molybdenum (Mo), Iron (Fe), Chromium (Cr), and Cobalt (Co), with carefully balanced percentages based on the specific alloy grade. These alloys resist oxidation, pitting, and stress corrosion cracking, ensuring long service life even in highly aggressive environments such as seawater, acids, and chlorides.
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Grades | Hastelloy C22, C276, Inconel 625, Monel 500 |
| Standards | ASTM B160, ASTM B161, ASME SB160, UNS N10276, N06625 |
| Forms | Hot-rolled hexagon rods, cold-finished rods |
| Surface Finish | Hot-rolled, bright, polished |
| Testing | Dimensional, tensile, hardness, PMI, MTC |
Chemical Composition (Typical Ranges)
| Element | Content (wt%) |
|---|---|
| Nickel (Ni) | 58 – 65 |
| Molybdenum (Mo) | 12 – 16 |
| Iron (Fe) | 5 – 8 |
| Cobalt (Co) | ≤ 2 |
| Carbon (C) | ≤ 0.02 |
| Manganese (Mn) | ≤ 1 |
| Silicon (Si) | ≤ 0.5 |
Mechanical Properties (Typical)
| Property | Typical Value | Notes |
|---|---|---|
| Tensile Strength (UTS) | 550 – 750 MPa | Depends on grade and heat treatment |
| Yield Strength | 250 – 400 MPa | Varies by alloy type |
| Elongation | 30 – 50% | High ductility |
| Hardness | HRB 85 – 95 | Varies with processing |
Equivalent Grades & Designations
| Common Name | ASTM / AISI | UNS |
|---|---|---|
| Hastelloy C22 | ASTM B2xx | N06022 |
| Hastelloy C276 | ASTM B574 | N10276 |
| Inconel 625 | ASTM B443 | N06625 |
Dimension Chart — Hexagon Rods (Common Sizes)
Standard hex sizes supplied in mm & inch.
| Flat to Flat (mm) | Flat to Flat (inch) | Lengths (mm) | Tolerance |
|---|---|---|---|
| 10 – 25 | 3/8" – 1" | 1000 – 3000 | ±0.2 mm |
| 26 – 50 | 1" – 2" | 2000 – 3000 | ±0.3 mm |
| 51 – 100 | 2" – 4" | Mill / Cut | Custom |
Typical Applications
- Chemical processing equipment
- Marine & offshore components
- Oil & gas valves and pumps
- Aerospace components
- Heat exchangers and reactor vessels
- High-performance industrial machinery
The rods are produced in strict adherence to international standards such as ASTM, ASME, and UNS, guaranteeing quality and consistency. They are available in various grades, including Hastelloy C22, C276, Inconel 625, and Monel 500, each offering unique properties suitable for specific industrial applications. The hexagonal shape provides excellent surface area for mechanical fastening and assembly, making them ideal for use in chemical plants, marine environments, oil & gas sectors, and high-temperature industrial processes..
High Nickel Alloy Hexagon Rods are precision-engineered metal rods manufactured using high-performance nickel-based alloys such as Inconel, Hastelloy, and Monel. These rods are highly valued in industries that demand excellent corrosion resistance, high strength, and outstanding performance at elevated temperatures. Rose Metal Industries, a trusted manufacturer, stockist, and exporter, supplies these hexagon rods across Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), and the Andaman and Nicobar Islands, ensuring that industrial requirements are met with global standards..
Frequently Asked Questions (FAQ)
Q1: What is the difference between 304 and 304L?
A: 304L has a lower maximum carbon content (≤0.03%) which reduces the risk of sensitization during welding, making it preferable for heavy gauge welded components. Mechanical properties are similar; choose 304L when welding without post-weld anneal is required.
Q2: Do you provide mill test certificates (MTC)?
A: Yes — Rose Metal Industries issues MTCs and can facilitate third-party inspection and PMI/chemical analysis on request.
Q3: What standards do your round bars comply with?
A: We supply material to customer-specified standards including ASTM A276 / A479 and EN standards (e.g., EN 10088 series) depending on product form and destination requirements.
Q4: Can you supply custom diameters, lengths and surface finishes?
A: Yes — we offer cut-to-length, turned/bright finish, polishing and custom tolerances. Contact sales for lead times and minimum order quantities.
Q5: How should I select 304 vs 316 for corrosion resistance?
A: 304 is suitable for many indoor and mildly corrosive environments. For chloride-rich environments (marine, salt-spray, swimming pools) or higher corrosion resistance needs, consider 316 (higher Mo content). Our sales team will advise based on application.