Hastelloy Square Rods
RDue to their corrosion resistance, mechanical strength, and thermal stability, Hastelloy Square Rods are extensively used in chemical and petrochemical plants, marine and offshore engineering, industrial pumps and valves, heat exchangers, and other critical equipment. Their combination of performance, durability, and adaptability makes them an essential material for industries seeking high-quality alloy solutions globally..
Rose Metal Industries guarantees that all Hastelloy Square Rods comply with international standards, and each rod undergoes rigorous testing including dimensional verification, tensile testing, hardness measurement, and PMI/chemical analysis. With a well-organized supply network in Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, and Andaman & Nicobar Islands, clients receive timely and reliable delivery for industrial, commercial, and custom applications.
Hastelloy Square Rods retain their structural and corrosion-resistant properties at elevated temperatures, which makes them suitable for applications in heat exchangers, chemical reactors, and high-temperature processing equipment. Their robust performance under mechanical and thermal stress positions them as a preferred choice over conventional stainless steels in industries requiring long-lasting durability and reliability.
Mechanically, Hastelloy Square Rods offer a combination of high tensile strength, excellent ductility, and stability under thermal stress. Annealed C276 square rods typically feature a tensile strength ranging from 690–790 MPa, yield strength of 310–355 MPa, and elongation exceeding 40%. These properties enable the rods to be precisely machined and fabricated into components such as shafts, fasteners, valves, pumps, and structural parts, maintaining performance under demanding operating conditions..
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Grades | SS 304 (AISI 304 / EN 1.4301 / UNS S30400), SS 304L (AISI 304L / EN 1.4307 / UNS S30403) |
| Standards | ASTM A276, ASTM A479, EN 10088, ASME/UNS |
| Forms | Hot-rolled bar, cold-drawn bright bar, turned & polished bar |
| Surface Finish | Hot-rolled, bright, polished |
| Testing | Dimensional, tensile, hardness, PMI, MTC |
Chemical Composition (typical ranges)
| Element | SS 304 (wt %) | SS 304L (wt %) |
|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 | ≤ 0.03 |
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 |
| Nitrogen (N) | ≤ 0.10 | ≤ 0.11 |
Mechanical Properties (typical)
| Property | Typical Value | Notes |
|---|---|---|
| Tensile Strength (UTS) | 485 – 620 MPa | Depends on product form |
| Yield Strength | 205 – 310 MPa | Cold drawn higher |
| Elongation | 40% min | High ductility |
| Hardness | HRB 80–95 | Varies with condition |
Equivalent Grades & Designations
| Common Name | ASTM / AISI | EN | UNS |
|---|---|---|---|
| Stainless Steel 304 | AISI 304 / ASTM A276 | 1.4301 | UNS S30400 |
| Stainless Steel 304L | AISI 304L / ASTM A276 | 1.4307 | UNS S30403 |
Dimension Chart — Round Bar (Common sizes)
Standard diameters supplied in mm & inch.
| Diameter (mm) | Diameter (inch) | Lengths (mm) | Tolerance |
|---|---|---|---|
| 6–16 | 1/4"–1/2" | 1000–3000 | ASTM/EN |
| 18–30 | 3/4"–1" | 1000–3000 | ±0.1–0.5 mm |
| 32–45 | 1.25"–1.5" | 1000–3000 | ±0.2–0.6 mm |
| 50–75 | 2"–2.5" | 2000–3000 | Custom |
| 80–200 | 3"+ | Mill / cut | Custom |
Typical Applications
- Food processing & dairy equipment
- Architectural railings & structures
- Piping components & fittings
- Automotive components
- Heat exchangers & vessels
- General machining & fabrication
The chemical composition of Hastelloy Square Rods, particularly alloys like Hastelloy C276 or C22, includes a nickel base with molybdenum (15–17%), chromium (14.5–16.5%), tungsten (3–4.5%), and trace elements such as iron, cobalt, carbon, and silicon. This precise alloying ensures excellent resistance to pitting, crevice corrosion, and stress-corrosion cracking in acidic, chloride-rich, or oxidizing environments, making them ideal for aggressive chemical and industrial processes..
Hastelloy Square Rods offered by Rose Metal Industries are high-performance nickel-based alloy rods designed to withstand extreme industrial conditions. Recognized for their superior corrosion resistance and mechanical strength, these rods are suitable for applications in chemical, petrochemical, marine, and high-temperature industrial environments. As a leading manufacturer, stockist, and exporter, Rose Metal Industries ensures a steady supply of Hastelloy Square Rods across Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), Andaman & Nicobar Islands, and international markets..
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.