Alloy 329 Stainless Steel Plate Ideal for Harsh Environments and
High-Temperature Applications
Stainless Steel Sheet Specifications
| Name | 329 stainless steel Plate |
| Our Grade | 200 Series: 201 202 300 Series: 301
304,304L,304H,309S,310S,314,316L,316Ti,316H,316LN,317L,321,329,347 400 Series:
409L,410,410S,416,420,430,431,436L.439,441,443,444,445,446 Super Stainless Steel:
904L,926,254SMO,654SMO,15-5PH,17-4PH,17-7PH.etc Nickel Alloy: C276, C22,G35,Alloy X,Monel 400,K500,Inconel
600,601,617,625,718,Incoloy 800,800H,800HT,825.etc |
| Technique | Hot Rolled, Cold Rolled,Forged |
| Standard | JIS, AISI, ASTM, DIN, TUV, BV, SUS, etc |
| Thickness | 0.1 – 80.0mm |
| Width range | 10mm – 2000mm |
| Length | Customized |
| Finish | 2B, BA, No.4, 8k, Brushed,Hairline,PVD Coating,Sandblasted |
| Service | Laser Cutting, Bending |
| Sample | Available |
Alloy 329 Stainless Steel Plate Ideal for Harsh Environments and
High-Temperature Applications
Introduction
Alloy 329 Stainless Steel Plate is a premium material designed to
withstand some of the most challenging and aggressive environments.
This unique alloy, made from a blend of austenitic and ferritic
structures, offers superior corrosion resistance, strength, and
heat resistance. Its combination of these properties makes it an
ideal choice for high-temperature applications and industries that
demand exceptional durability and resistance to harsh conditions.
Used widely in chemical processing, marine environments, power
generation, and offshore applications, Alloy 329 stainless steel
offers outstanding performance even in the most demanding
scenarios. This product information guide will delve into the key
features, specifications, and applications of Alloy 329 Stainless
Steel Plate, highlighting why it is the go-to material for
industries that require resilience and reliability.
What is Alloy 329 Stainless Steel?
Alloy 329 Stainless Steel is a duplex stainless steel composed of
both austenitic and ferritic phases, giving it a unique blend of
characteristics that set it apart from traditional stainless
steels. The combination of these two phases contributes to its
remarkable corrosion resistance, strength, and toughness,
especially in environments with high chloride levels, high
temperatures, or aggressive chemicals.
Key Characteristics of Alloy 329 Stainless Steel:
Corrosion Resistance: Due to its high content of chromium and
molybdenum, Alloy 329 exhibits superior resistance to pitting,
crevice corrosion, and stress corrosion cracking, especially in
chloride-rich environments.
High Strength: The duplex structure enhances the steel's mechanical
strength, making it stronger than many other stainless steel
alloys, which is ideal for heavy-duty applications.
Heat Resistance: This alloy retains its structural integrity even
under high-temperature conditions, making it suitable for use in
high-heat environments.
Weldability: Alloy 329 is easily weldable with standard welding
techniques, allowing for effective fabrication of complex parts and
structures without compromising its corrosion resistance.
Formability: The steel can be cold-formed or hot-formed into
different shapes and sizes, offering versatility for various
industrial needs.
Features of Alloy 329 Stainless Steel Plate
The Alloy 329 Stainless Steel Plate is offered in a range of
thicknesses, from 1.0mm to 40.0mm, which makes it suitable for
diverse applications across industries. Whether you're in need of
thin sheets or thick plates, Alloy 329 provides consistent
performance, regardless of plate size. The plate is available in a
variety of finishes, including cold-rolled, hot-rolled, and
polished finishes, providing flexibility in meeting specific design
requirements.
Key Advantages:
Excellent Corrosion Resistance: The alloy is highly resistant to
corrosion caused by chlorides and other aggressive substances,
including acids and alkalis.
Exceptional Strength: With high tensile strength and yield
strength, Alloy 329 can handle heavy mechanical loads, making it
ideal for structural applications.
Superior Weldability: The material is weldable without the need for
special techniques or fillers, which ensures efficient fabrication.
Enhanced Durability: Alloy 329 resists wear and fatigue, resulting
in a longer service life and reduced need for maintenance and
replacement.
High-Temperature Performance: The material retains its structural
and mechanical properties even in high-temperature environments, up
to 800°C (1472°F).
Specifications of Alloy 329 Stainless Steel Plate
Here are the detailed specifications for Alloy 329 Stainless Steel
Plate, which demonstrate why this material is ideal for use in
high-performance environments:
| Property | Specification |
|---|
| Material Type | Alloy 329 Duplex Stainless Steel |
| Thickness Range | 1.0mm to 40.0mm |
| Width | 1000mm - 2000mm (standard) |
| Length | Custom Lengths Available |
| Density | 7.8 g/cm³ |
| Tensile Strength | 650 MPa |
| Yield Strength | 450 MPa |
| Elongation | 25% (min) |
| Corrosion Resistance | Excellent resistance to chloride-induced corrosion |
| Hardness | 200-250 HB |
| Surface Finish | Cold Rolled, Hot Rolled, Polished |
| Packaging | Custom packaging options available |
Chemical Composition of Alloy 329 Stainless Steel Plate:
The chemical composition of Alloy 329 Stainless Steel Plate
contributes to its remarkable properties, especially its resistance
to corrosion and heat. Below is the typical chemical composition:
| Element | Percentage (%) |
|---|
| Chromium (Cr) | 24-26% |
| Nickel (Ni) | 4.0-6.0% |
| Molybdenum (Mo) | 0.5-1.0% |
| Manganese (Mn) | 1.0-2.0% |
| Nitrogen (N) | 0.10-0.20% |
| Carbon (C) | 0.03% max |
| Silicon (Si) | 0.75% max |
| Phosphorus (P) | 0.04% max |
| Sulfur (S) | 0.03% max |
This chemical balance ensures that Alloy 329 has optimal strength,
durability, and resistance to corrosive and high-temperature
environments.
Applications of Alloy 329 Stainless Steel Plate
Due to its superior corrosion resistance and high-temperature
stability, Alloy 329 Stainless Steel Plate is widely used across
several industries. Below are some of the key applications where
this material excels:
1. Chemical and Petrochemical Industry
In the chemical and petrochemical sectors, the alloy’s resistance
to corrosive chemicals, acids, and high-pressure environments makes
it an ideal choice for:
Heat exchangers
Pumps and valves
Reactors
Distillation columns
In these industries, equipment is constantly exposed to aggressive
chemicals, making it essential to use materials like Alloy 329 that
can maintain performance under such conditions.
2. Marine and Offshore Engineering
The harsh marine environment, with its high salt content and
corrosive atmosphere, demands materials that resist
chloride-induced pitting and stress corrosion cracking. Alloy 329
is commonly used for:
Shipbuilding
Offshore platforms
Marine equipment
Subsea pipelines
This alloy offers long-term protection against corrosion, even in
saltwater environments, ensuring the longevity of structures and
reducing maintenance needs.
3. Oil and Gas Industry
In the oil and gas sector, components are subject to high
pressures, temperatures, and exposure to aggressive substances such
as sour gas and chemicals. Alloy 329’s strength and corrosion
resistance make it ideal for:
Piping systems
Drilling equipment
Pressure vessels
Heat exchangers
Alloy 329 offers excellent resistance to sour gas, which is a
critical consideration in the oil and gas industry.
4. Power Generation
Power plants, especially those using high-pressure steam or
operating in high-temperature conditions, require materials that
can maintain their mechanical properties over time. Alloy 329’s
high-temperature resistance makes it perfect for:
Boilers
Turbine components
Heat exchangers
Piping systems
This steel can handle the rigors of high-temperature applications
and can be used in nuclear, thermal, and geothermal power
generation systems.
5. Aerospace and Aviation
In the aerospace industry, Alloy 329’s strength-to-weight ratio, as
well as its heat resistance, make it suitable for critical
components such as:
The high strength and corrosion resistance also make it ideal for
extreme temperature environments, where failure could lead to
significant safety concerns.
6. Food and Beverage Industry
Due to its non-reactive nature, Alloy 329 is often used in the food
and beverage industry for applications that require resistance to
aggressive cleaning chemicals and high temperatures, such as:
Processing tanks
Mixers
Conveyor belts
Piping systems
The hygienic properties of the material also ensure that it meets
the required standards for food-grade applications.
7. Construction and Structural Applications
In construction, particularly for bridges, tunnels, and high-rise
buildings, Alloy 329 is used to ensure that structural components
can withstand external environmental conditions. Its corrosion
resistance and strength make it suitable for:
Reinforcing bars
Building frames
Architectural features
Railings and facades
Conclusion
Alloy 329 Stainless Steel Plate is an excellent material for
industries requiring exceptional strength, corrosion resistance,
and high-temperature stability. With a wide range of applications
across sectors like chemical processing, marine engineering, oil
and gas, and aerospace, this alloy offers reliability and
long-lasting performance in the most demanding environments.
