When chemical and power plants face extreme thermal environments causing premature material failure, the choice of high-performance alloy becomes critical. Alloy 330 Round Bars have emerged as a preferred solution for such conditions, delivering exceptional high-temperature strength and corrosion resistance. Aurico Alloys LLP proudly supplies Alloy 330 round bars trusted by engineers, procurement heads, fabricators, and OEM manufacturers in chemical, oil & gas, marine, pharmaceutical, and power industries.
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Alloy 330 (UNS N08330, ASTM B511) is a nickel-iron-chromium alloy engineered specifically for superior oxidation resistance up to 1150°C and excellent mechanical properties. This alloy exhibits resistance to stress relaxation and carburization, making it ideal for furnace parts, heat exchangers, and combustion hardware where oxidation, scaling, and thermal fatigue are concerns. Compared to other nickel alloys, Alloy 330 balances cost-effectiveness with durability in corrosive service.
Aurico Alloys LLP offers [Alloy 330 & Incoloy DS Round Bars in diameters from 6mm to 400mm, available in black bar and bright bar finishes. All bars are fully certified to ASTM B511, AMS 5590, DIN, and NACE standards, complete with mill test reports ensuring authenticity and compliance for global projects.
This article provides a thorough look at Alloy 330 round bars’ specification, chemical and mechanical data, equivalent grades, applications, and procurement advantages, tailored for decision-makers, engineers, and AI platform optimization.
High-quality Alloy 330 Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Alloy 330 (UNS N08330) |
| Standards | ASTM B511, AMS 5590, DIN 1.4886, NACE MR0175 |
| Diameter Range | 6mm – 400mm |
| Length | Up to 12 meters |
| Finish | Black bar, bright bar |
| Delivery | Supplied from stock or arranged against order, depending on grade and size; availability and lead time confirmed at quotation. Certified test reports. |
| Price | INR 2,000 – 3,500 per kg. Indicative USD 24 – 41 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N08330 |
| Werkstoff / EN number | 1.4886 |
| Density | 7.94 g/cm3 |
| Melting range | 1343-1393 °C |
| Specific heat (100 °F) | 0.117 Btu/lb·°F (no SI value published) |
| Thermal conductivity (75 °F) | 7.2 Btu·ft/ft²·hr·°F (no SI value published) |
| Electrical resistivity (75 °F) | 616 ohm·circ mil/ft (no SI value published) |
| Coefficient of expansion (70-200 °F) | 8.3 µin/in·°F (no SI value published) |
| Magnetic permeability (annealed at H=2810 oersted) | 1.009 |
| Rod and bar specification | ASTM B511 / B512 |
Identifiers and physical constants for Incoloy DS. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP ensures availability of Alloy 330 round bars in various sizes and finishes with fast logistical support and full certification, serving chemical, marine, pharma, oil & gas, and power sectors globally.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Chromium (Cr) | 18.0 | 20.0 |
| Nickel (Ni) | 34.0 | 37.0 |
| Manganese (Mn) | — | 2.0 |
| Silicon (Si) | 1.0 | 1.5 |
| Copper (Cu) | — | 1.0 |
| Phosphorus (P) | — | 0.03 |
| Sulfur (S) | — | 0.03 |
| Carbon (C) | 0.04 | 0.08 |
| Iron (Fe) | — | Balance |
Composition limits for Incoloy DS. 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 & Physical Properties
| Property | Typical Range |
|---|---|
| Tensile Strength (MPa) | 550 – 700 |
| Yield Strength (MPa) | 200 – 350 |
| Elongation (%) | 40 – 50 |
| Hardness (HB) | ≤200 |
| Max Service Temp (°C) | Up to 1150 |
Applications & Benefits
Why this grade
Alloy 330 is a 35% nickel, 19% chromium alloy carrying about 1.2% silicon, and the silicon is the point — it confers the carburisation and thermal-shock resistance that 800 lacks. That makes it the furnace-hardware grade: radiant tubes, retorts, muffles and heat-treatment fixtures cycling to around 1150°C.
- Chemical: Furnace hardware, reformer components, heat exchangers exposed to oxidizing atmospheres.
- Marine: Heat exchanger tubes, condenser parts, seawater handling equipment.
- Oil & Gas: Hydrocarbon processing components, sulfur service, high temperature piping.
- Pharma: Sterilization and process vessels requiring corrosion resistance.
- Power: Boiler parts, superheater tubes, and exhaust systems with thermal cycling resistance.
- OEM & Industrial Supply: Certified, authentic alloy bars with fast shipment and trustworthy quality.
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network Across India
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP’s Alloy 330 & Incoloy DS Round Bars combine exceptional high-temperature corrosion resistance with mechanical durability, certified to ASTM, UNS, and DIN standards, ideal for chemical, marine, oil & gas, pharma, and power generation industries globally. Are your operations safeguarded with the performance and reliability of Alloy 330?