Alloy 602 CA Tube Supplier, Stockist and Exporter
Table of Contents
Aurico Alloys LLP supplies alloy 602 ca tube (N06025, Werkstoff 2.4633) from ready stock in Mumbai, to customers across India and in more than 40 export markets.
Tube is specified by outside diameter and wall thickness rather than nominal bore, which makes it the form of choice for heat exchangers, instrumentation and any assembly where the fit into a tubesheet or fitting is what governs.
Alloy 602 CA combines an alumina scale with carbide strengthening, so it keeps creep strength at temperatures where alloy 601 has already softened.
Sizes and Specifications
| Grade | Alloy 602 CA |
|---|---|
| UNS number | N06025 |
| Werkstoff (W.Nr.) | 2.4633 |
| Specifications | VdTUV material data sheet 540, fabricated from ASTM B168 / ASME SB 168 material |
| Size range | Outside diameter 3.0 mm to 254 mm with wall thickness 0.5 mm to 15 mm, in seamless and welded construction, random or cut lengths up to 6 m and longer to order. |
| Condition and finish | Supplied annealed and pickled, bright annealed or polished, in straight lengths, U-bends and coiled tubing for instrumentation. |
| Certification | EN 10204 3.1 mill test certificate; 3.2 and third-party inspection on request |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N06025 |
| Werkstoff / EN number | 2.4633 |
| EN designation | NiCr25FeAlY |
| Density | 7.93 g/cm3 |
| Melting range | 1340-1400 °C |
| Relative magnetic permeability (20 °C) | 1.01 (maximum) |
Identifiers and physical constants for 602 CA. A dash means no such designation is published for this grade.
VDM Metals lists four product forms for this alloy - rod and bar, sheet and plate, strip, and wire - so there is no mill standard written for 602 CA tube, and none is claimed above. Our tube is fabricated from ASTM B168 / ASME SB 168 sheet and plate of the same heat, and ships with the mill certificate for that material plus our fabrication records.
Chemical Composition
Nickel balance with 24-26% chromium, 8-11% iron, 1.8-2.4% aluminium and a deliberately high 0.15-0.25% carbon, micro-alloyed with yttrium and zirconium.
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | — | Balance |
| Chromium (Cr) | 24 | 26 |
| Iron (Fe) | 8 | 11 |
| Carbon (C) | 0.15 | 0.25 |
| Manganese (Mn) | — | 0.5 (UNS N06025 gives 0.15 max) |
| Silicon (Si) | — | 0.5 |
| Copper (Cu) | — | 0.1 |
| Aluminium (Al) | 1.8 | 2.4 |
| Titanium (Ti) | 0.1 | 0.2 |
| Yttrium (Y) | 0.05 | 0.12 |
| Zirconium (Zr) | 0.01 | 0.1 |
| Phosphorus (P) | — | 0.02 |
| Sulfur (S) | — | 0.01 |
Composition limits for 602 CA. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical and Physical Properties
The carbide dispersion plus the alumina scale give the highest creep-rupture strength of the alloy 600 family, with oxidation and carburisation resistance to 1200°C.
Industry Applications
| Industry | Typical use |
|---|---|
| Heat treatment | Furnace rollers, radiant tubes and load-bearing fixtures above 1100°C. |
| Petrochemical | Steam reformer and cracking-furnace hardware. |
| Power generation | Waste incineration and biomass combustion components. |
| Chemical processing | Carburising and nitriding atmosphere equipment. |
| Industrial heating | Burner components and high-temperature ducting. |
Testing and Certification
Every consignment ships with an EN 10204 3.1 mill test certificate stating heat number, chemical analysis and mechanical properties. Depending on the specification we can add positive material identification, ultrasonic and dye-penetrant testing, intergranular corrosion testing to ASTM G28 or A262, hydrostatic testing, and third-party inspection release from Lloyd's Register, Bureau Veritas, SGS or TUV.
Aurico Alloys LLP operates an ISO 9001:2015 quality management system, and can certify material to NACE MR0175 / ISO 15156 for sour service where the grade permits.
Frequently Asked Questions
Request a Quotation
Send your size, quantity and specification and we will come back with price and lead time, usually the same working day. Call +91 7977 88 6611 or email info@auricoalloys.com.