Alloy 330 Plates – Incoloy 330 Plate Supplier & Stockist | ASC LLP
ASC LLP is one of the trusted Incoloy 330 Plate Suppliers and Alloy 330 Sheet Stockists in India, offering high-quality Alloy 330 Plates and coils to meet your industrial needs. Whether you need corrosion resistance, high strength, or thermal stability, our Alloy 330 UNS N08330 Plates are the right choice for heat treatment, chemical processing, and power generation industries.
What are Alloy 330 Plates?
Alloy 330 Plates, also known as Incoloy 330 Plates, are made from a heat-resistant austenitic alloy composed mainly of Nickel, Chromium, and Iron. This alloy is designed to handle high temperatures and resist oxidation and carburization.
The UNS N08330 designation refers to the specific grade under the unified numbering system, which guarantees consistency and quality. These plates are widely used in furnace parts, heat exchangers, thermal processing equipment, and petrochemical plants.

Key Features of Alloy 330 / Incoloy 330 Plates
- Excellent high-temperature strength
- Superior oxidation and carburization resistance
- Good mechanical strength even at elevated temperatures
- Weldability using standard techniques
- Corrosion resistance in oxidizing and reducing environments
Alloy 330 Plates – Product Forms Available at ASC LLP
We offer Alloy 330 in a variety of product forms, including:
- Incoloy 330 Plate
- 330 Stainless Steel Sheet
- Alloy 330 Coil
- AISI 330 Coils
- AMS 5716 Alloy 330 Sheet
- ASTM B535 UNS N08330 Plates
All our plates are certified and manufactured as per global standards like ASTM B535, AMS 5716, and AISI 330.


Schedule and Size Chart – Alloy 330 Plates
Thickness (mm) | Width (mm) | Length (mm) | Schedule | Remarks |
0.5 – 3.0 | 1000 / 1250 / 1500 | 2000 / 2500 / 3000 | Light Gauge | Suitable for sheet metal work |
4.0 – 6.0 | 1000 – 2000 | 2500 – 6000 | Schedule 10 | Ideal for furnace liners |
8.0 – 12.0 | 1250 – 2500 | Custom cut | Schedule 20 | Heat exchanger & reactor use |
16.0 – 25.0 | 1500 – 2500 | As per client request | Schedule 40 | For pressure vessels |
30.0 – 50.0 | 1500 – 2500 | Up to 6000 mm | Schedule 80 | Heavy-duty thermal applications |
55.0 – 100.0 | 1500 – 2500 | Custom available | Schedule 160 | High-load thermal structures |
Mechanical Properties of AISI 330 Coils
Property | Value |
Tensile Strength | 70 ksi (485 MPa) min |
Yield Strength (0.2%) | 30 ksi (205 MPa) min |
Elongation | 40% min |
Hardness (Brinell) | ≤ 217 HB |
Melting Range | 1354°C to 1400°C |
Specifications Chart – Alloy 330 Sheets
Standard | Specification Details |
ASTM Standard | ASTM B535 |
UNS Designation | UNS N08330 |
AISI | AISI 330 |
AMS Standard | AMS 5716 |
Plate Forms | Sheet, Plate, Coil, Strip |
Thickness Range | 0.5 mm to 100 mm |
Width Range | Up to 2500 mm |
Length | Up to 6000 mm or custom-cut |
Finish Options | No.1 (HRAP), 2B, BA, Brushed, Mirror, Custom Polish |
Product Form | Hot Rolled, Cold Rolled |
Delivery Condition | Annealed, Pickled, Polished |
Tolerance | As per ASTM A480 / EN 10029 / Customer specs |
Chemical Composition of Alloy UNS N08330 Plates
Element | Content (%) |
Nickel (Ni) | 34.0 – 37.0 |
Chromium (Cr) | 17.0 – 20.0 |
Iron (Fe) | Balance |
Silicon (Si) | 0.75 – 1.50 |
Carbon (C) | 0.05 – 0.08 |
Manganese (Mn) | ≤ 2.0 |
Sulfur (S) | ≤ 0.03 |
Physical Properties Chart – Alloy 330 Coil
Property | Value | Unit |
Density | 7.9 | g/cm³ |
Melting Point | 1354 – 1400 | °C |
Thermal Conductivity | 12.5 | W/m·K at 100°C |
Electrical Resistivity | 1.08 | µΩ·m |
Specific Heat Capacity | 0.50 | J/g·K |
Coefficient of Expansion | 14.4 | µm/m·°C |
Modulus of Elasticity | 200 | GPa |
Magnetic Properties | Non-magnetic (in annealed state) | – |
Oxidation Resistance | Excellent (Up to 1150°C) | – |
Carburization Resistance | Very Good | – |
Applications of Alloy 330 Plates
Due to their unique properties, Alloy 330 Plates are widely used in:
- Furnace components
- Heat treatment baskets and jigs
- Chemical and petrochemical processing
- Thermal processing plants
- Industrial heating equipment
- Gas turbines and power generation units
- Cement and steel manufacturing industries
Why Choose ASC LLP as Your Incoloy 330 Plate Supplier?
At ASC LLP, we offer:
- Ready stock of Incoloy 330 Sheets and Plates
- Global shipping and quick delivery
- Competitive pricing
- Quality-tested products with material traceability
- Custom sizes, thicknesses, and finishes available
- Experienced team of metal experts
- One of the most trusted RA330 plate suppliers in India
Whether you’re looking for Alloy 330 Plate Suppliers in India or need to export globally, ASC LLP is your reliable partner.
Global Reach
ASC LLP boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality Alloy 330 Plates. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
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