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.

Table of Contents:

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 350mm, available in bright, ground, and polished 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 & Incoloy DS Round Bars for Industrial Applications

High-quality Alloy 330 Round Bars ready for industrial use.

Specification Overview

Supplier & ManufacturerAurico Alloys LLP
GradeAlloy 330 (UNS N08330)
StandardsASTM B511, AMS 5590, DIN 1.4886, NACE MR0175
Diameter Range6mm – 350mm
LengthCut-to-length up to 6000mm
FinishBright, ground, polished, rough turned
DeliveryWorldwide stock availability, certified test reports
PriceINR 2,000 – 3,500 per kg. Indicative USD 24 – 41 per kg; quoted against grade, form, size and quantity.

Equivalent Grades & Standards

PropertyValue
UNS numberN08330
Werkstoff / EN number1.4886
Density7.94 g/cm3
Melting range1343-1393 °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 specificationASTM 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

ElementMin (%)Max (%)
Chromium (Cr)18.020.0
Nickel (Ni)34.037.0
Manganese (Mn)—2.0
Silicon (Si)1.01.5
Copper (Cu)—1.0
Phosphorus (P)—0.03
Sulfur (S)—0.03
Carbon (C)0.040.08
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

PropertyTypical 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.

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?