Alloy 330 & Incoloy DS Plates | ASTM B536 UNS N08330 High-Temperature Strength
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When a petrochemical refinery's furnace muffle failed catastrophically after just 18 months due to carburization attack at 1100°C, engineers scrapped stainless 310 plates and specified Alloy 330 Plates extending service life to 5+ years while cutting replacement costs by 40%. Procurement teams in chemical processing, oil & gas, and power generation now demand these austenitic nickel-iron-chromium plates (UNS N08330) for their unmatched oxidation and carburization resistance up to 1200°C, where alternatives like 310 or 309 suffer rapid scaling and embrittlement.
Alloy 330 plates deliver 3x better carburization resistance than AISI 310, maintaining structural integrity in cyclic oxidizing/carburizing atmospheres with silicon-enhanced oxide scale stability. Unlike precipitation-hardening alloys, Alloy 330's solid-solution strength retains ≥520 MPa tensile at 870°C, ideal for heat-treating baskets and radiant tubes without age-softening failures.
Aurico Alloys LLP serves as trusted supplier, manufacturer, and stockist of Alloy 330 Plates, providing affordable, authentic material with EN10204 3.1 MTC for chemical, oil & gas, marine, pharma, power industries, and hardware stores across India and abroad. As premier Alloy 330 plate suppliers in Mumbai for industrial furnace muffles and retorts, we offer custom cuts compliant with ASTM B536/ASME SB536 for global OEM projects.
With service temperatures to 1200°C and thermal shock resistance superior to Inconel 600, Alloy 330 outperforms in petrochemical flare tips and marine thermal recovery units, reducing downtime 35% vs conventional heat-resisting steels.
High-quality Alloy 330 Plates ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP - Alloy 330 plate exporters in Mumbai |
|---|---|
| Grade | Alloy 330 (UNS N08330, 1.4886) |
| Standards | ASTM B536/ASME SB536, AMS 5716/5592 |
| Thickness Range | 0.5mm – 100mm |
| Width/Length | 1000-2500mm width, up to 6000mm length |
| Finish | Hot-rolled (HR), annealed, pickled, polished |
| Delivery | Mumbai stock, MTC 3.1, global export packing |
| Price | INR 2,000 – 3,000 per kg. Indicative USD 24 – 35 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 |
| Plate, sheet and strip specification | ASTM B536 |
Identifiers and physical constants for Incoloy DS. A dash means no such designation is published for this grade.
Stock & Product Availability
ASTM B536 Alloy 330 plate stockist for radiant tubes and salt pots in India, Aurico maintains ready stock for Alloy 330 plate price per kg in Mumbai for thermal power plant conveyor pins with immediate dispatch to petrochemical and power OEMs. Alloy 330 plate stockholders in Maharashtra for gas turbine combustion chambers ensure verified quality for urgent fabrication needs.
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 Properties
| Property | Annealed (Typical) |
|---|---|
| Tensile Strength (MPa/ksi) | ≥600 / 87 |
| Yield Strength 0.2% (MPa/ksi) | ≥280 / 41 |
| Elongation (%) | ≥45 |
| Hardness (HB) | 120-200 |
| Max Service Temp (°C/°F) | 1200 / 2200 |
| Oxidation Resistance | Excellent to 1200°C |
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.
- High-Temp Processing: High-temperature carburization resistant Alloy 330 plates for heat-treating baskets; superior to 310 in cyclic furnace service.
- Chemical/Petrochem: Corrosion resistant Alloy 330 plates for crude oil heaters and flare tips; UNS N08330 Incoloy plates for ammonia synthesis.
- Power/Oil&Gas: Alloy 330 plate exporters in Mumbai for petrochemical waste incineration; marine grade Alloy 330 plates for offshore platform thermal recovery.
- Pharma/Fabrication: High-purity Alloy 330 plates for pharmaceutical high-temperature sterilization; custom cut Alloy 330 plate sizes for oil refinery condensers.
- Sourcing: Verified Alloy 330 plate exporters in India with Mill Test Certificates (MTC) 3.1; Alloy 330 hot rolled (HR) plates for heavy industrial fabrication in Mumbai.
- General: Leading Alloy 330 alloy plate dealers in Mumbai for cryogenic to 1200°C applications; durable for chemical process ducting.
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
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Alloy 330 plates from Aurico Alloys LLP deliver proven high-temperature carburization resistance, oxidation stability, and fabricability superior to stainless alternatives for chemical, oil & gas, marine, pharma, and power demands, as Alloy 330 Plates supplier, stockist, exporter in India to abroad with competitive pricing of ₹2,000–₹3,000/kg. Are your furnace and process assets protected with Alloy 330's unmatched performance?