High Nickel Alloy Pipe
High Nickel Alloy Pipes are precision-engineered pipes designed to perform exceptionally in high-temperature, corrosive, and aggressive chemical environments. Rose Metal Industries, a trusted manufacturer, stockist, and exporter, supplies these pipes to industries across Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), and Andaman and Nicobar Islands. They are widely used in chemical, petrochemical, marine, oil & gas, and power generation industries, ensuring long-lasting performance even under severe operating conditions..
These pipes are manufactured according to stringent international standards such as ASTM, ASME, UNS, and EN norms, ensuring reliability and quality. Available in seamless and welded forms, High Nickel Alloy Pipes come in various grades like Inconel 600, Inconel 625, Monel 400, Hastelloy C-22, and Nickel 200/201, catering to diverse industrial applications. These pipes are supplied in multiple sizes, thicknesses, and finishes including bright, polished, and mill finish to meet exact engineering specifications.
The chemical composition of these alloys provides superior corrosion and oxidation resistance. For example, Inconel 625 typically contains 58% Nickel, 20–23% Chromium, 8–10% Molybdenum, and 3–4% Niobium, while Hastelloy C-22 contains Nickel 57%, Chromium 21%, Molybdenum 13%, and Tungsten 3%. This composition ensures that pipes can withstand harsh acids, seawater, and high-temperature environments, making them ideal for critical industrial applications.
Mechanical properties of High Nickel Alloy Pipes include high tensile and yield strength, excellent elongation, and hardness. They maintain structural integrity under high-pressure and high-temperature conditions, making them suitable for heat exchangers, pressure vessels, chemical transport pipelines, and marine applications. Rose Metal Industries ensures all products undergo rigorous testing including dimensional checks, tensile, hardness, and PMI inspections, accompanied by Mill Test Certificates (MTC) to guarantee quality.
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Grades | Inconel 600, Inconel 625, Monel 400, Hastelloy C-22, Nickel 200/201 |
| Standards | ASTM B165, ASTM B444, ASTM B816, ASME SB165, UNS / EN equivalents |
| Forms | Seamless pipe, welded pipe, ERW pipe |
| Surface Finish | Mill finish, polished, bright finish |
| Testing | Dimensional, tensile, hardness, PMI, NDT, Hydrostatic, MTC |
Chemical Composition (typical ranges)
| Element | Inconel 625 (wt %) | Hastelloy C-22 (wt %) | Monel 400 (wt %) |
|---|---|---|---|
| Nickel (Ni) | 58 | 57 | 63 |
| Chromium (Cr) | 20–23 | 21 | 1 |
| Molybdenum (Mo) | 8–10 | 13 | 0 |
| Copper (Cu) | 1 | 2 | 28–34 |
| Iron (Fe) | 5 | 5 | 1.5 |
| Carbon (C) | ≤ 0.1 | 0.05 | 0.3 |
Mechanical Properties (typical)
| Property | Typical Value | Notes |
|---|---|---|
| Tensile Strength (UTS) | 550 – 850 MPa | Depends on grade & pipe type |
| Yield Strength | 240 – 415 MPa | Cold worked higher |
| Elongation | 30% min | High ductility |
| Hardness | HRB 80–95 | Varies with condition |
Equivalent Grades & Designations
| Common Name | ASTM / AISI | EN | UNS |
|---|---|---|---|
| Inconel 625 | ASTM B444 / B466 | 2.4856 | UNS N06625 |
| Hastelloy C-22 | ASTM B574 | 2.4602 | UNS N06022 |
| Monel 400 | ASTM B165 | 2.4360 | UNS N04400 |
Dimension Chart — Pipes (Common sizes)
Standard diameters & thickness supplied in mm & inch.
| Outer Diameter (mm) | Outer Diameter (inch) | Wall Thickness (mm) | Lengths (mm) |
|---|---|---|---|
| 15–50 | 1/2"–2" | 1–5 | 1000–6000 |
| 60–150 | 2.5"–6" | 2–10 | 1000–6000 |
| 160–300 | 6"–12" | 3–15 | 1000–6000 |
Typical Applications
- Chemical & petrochemical process piping
- Oil & gas pipelines
- Marine & offshore applications
- Power plant and heat exchanger piping
- High-temperature and corrosion-resistant industrial piping
- Pharmaceutical and food processing lines
With a commitment to quality, reliability, and customer satisfaction, we continue to expand our stainless steel distribution network across South India, including Chennai, Bengaluru, Hyderabad, Tirupati, Mangalore, Belgaum, Nellore, Kakinada, and the Andaman & Nicobar Islands. Whether it's structural support, pressure equipment, architectural projects, or precision engineering components, our Stainless Steel 304/304L Round Bars offer unmatched performance.
Backed by decades of experience and a strong technical workforce, Rose Metal Industries ensures that every Stainless Steel 304 and 304L Round Bar meets the expectations of industries in Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, and the Andaman & Nicobar Islands. Our goal is to provide high-quality stainless steel solutions with superior consistency, competitive pricing, and fast delivery for national and international clients.
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.