AISI 310, AISI 321 SS Wire

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Product Description:
Our AISI 310 and AISI 321 stainless steel wires are designed for high-performance applications that require excellent heat resistance and superior corrosion resistance. AISI 310 is ideal for extreme high-temperature environments, offering outstanding oxidation resistance at temperatures up to 1100°C. AISI 321, with its titanium addition, offers enhanced resistance to intergranular corrosion, making it ideal for welding and applications in chemical processing, aerospace, and power generation industries.
Key Specifications:
Property Specifications
Grades AISI 310, AISI 321
Wire Diameter 0.1 mm to 20 mm
Length Available in coils or cut-to-length options
Surface Finishes Bright, Annealed, Polished, and custom finishes
Standards ASTM, ASME, DIN, EN

Stainless steel wires made from AISI 310 and AISI 321 grades are known for their excellent heat resistance, durability, and superior corrosion protection. These wires are widely used in high-temperature and critical applications across industries such as aerospace, automotive, chemical processing, and industrial manufacturing.

AISI 310 Stainless Steel Wire

AISI 310 is an austenitic stainless steel designed for high-temperature applications, offering exceptional oxidation resistance and strength.

Key Features of AISI 310 Wire

  • Heat Resistance: Maintains structural integrity at elevated temperatures up to 1150°C.
  • Oxidation Resistance: Excellent in both intermittent and continuous service conditions.
  • Durability: High tensile strength and creep resistance under thermal stress.
  • Corrosion Resistance: Performs well in mildly corrosive environments.

Applications

  • Furnace components
  • Heat exchangers
  • Kiln linings
  • Industrial heating elements
  • Petrochemical equipment

Chemical Composition

Element Percentage
Carbon (C) 0.25 (maximum)
Chromium (Cr) 24.0-26.0
Nickel (Ni) 19.0-22.0
Manganese (Mn) 2.0 (maximum)
Silicon (Si) 1.5 (maximum)
Phosphorus (P) 0.045 (maximum)
Sulfur (S) 0.030 (maximum)

AISI 321 Stainless Steel Wire

AISI 321 is a titanium-stabilized austenitic stainless steel, offering excellent resistance to intergranular corrosion and high-temperature stability.

Key Features of AISI 321 Wire

  • Stabilized Against Carbide Precipitation: Suitable for welding and high-temperature applications.
  • Corrosion Resistance: Strong resistance to organic and inorganic chemicals.
  • High-Temperature Strength: Performs well in environments up to 870°C.
  • Weldability: Excellent weldability without the need for post-weld annealing.

Applications

  • Aerospace components
  • Chemical and pharmaceutical equipment
  • Heat exchangers
  • Expansion joints
  • Food-grade wire baskets

Mechanical Properties

Grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%)
AISI 310 515-730 205 40
AISI 321 515-750 200 40

Available Wire Forms

  1. Round Wire: Suitable for industrial springs and heating elements.
  2. Flat Wire: Used in conveyor belts and screens.
  3. Welded Wire: For fencing, structural applications, and industrial meshes.
  4. Fine Wire: Ideal for precision applications like medical and electronics.

Value-Added Services

  • Surface Finishes: Bright, matte, or polished for specific requirements.
  • Coatings: Custom coatings such as PVC, PTFE, or nylon for enhanced durability.
  • Custom Packaging: Supplied in coils, spools, or cut-to-length segments as per client specifications.

Marking & Packaging

  • Marking: Each wire is labeled with grade, size, and heat number for traceability.
  • Packaging: Moisture-resistant packaging for safe transit and long-term storage.

FAQs

AISI 310 is optimized for high-temperature oxidation resistance, while AISI 321 is stabilized with titanium for improved weldability and resistance to intergranular corrosion.
While AISI 321 performs well in moderately corrosive environments, AISI 310 is better suited for high-temperature industrial applications rather than marine use.
AISI 321 wires, due to titanium stabilization, do not require post-weld annealing, making them ideal for welding-intensive applications.

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