Stainless Steel 321 Eye Bolts as per DIN 580 are a specific type of fastener designed for various lifting and anchoring applications. These eye bolts are made from Stainless Steel 321, which is a heat-resistant and corrosion-resistant stainless steel alloy. Here are some key features, applications, and heat treatment information for these eye bolts:


Features:

  • Material: Stainless Steel 321 is a grade of stainless steel known for its excellent resistance to high temperatures, oxidation, and corrosion. It contains titanium, which stabilizes the alloy against chromium carbide precipitation during welding.
  • Corrosion Resistance: Stainless Steel 321 provides good corrosion resistance, especially in environments with high-temperature exposure. It is commonly used in applications where exposure to acids and other corrosive substances is a concern.
  • Strength: These eye bolts are designed to meet the strength requirements specified in the DIN 580 standard, which is a German standard for lifting eye bolts.
  • Threaded Shank: Eye bolts typically have a threaded shank that allows them to be screwed into various surfaces or objects securely.

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Stainless Steel 321 Eye Bolts
  • UNS

    S32100

  • WNR

    1.4541

  • ASTM / ASME

    ASTM F593, A193 / ASME SF593, A193

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Applications:

Stainless Steel 321 Eye Bolts, as per DIN 580, are commonly used in various lifting and anchoring applications, including:

  • Lifting and Rigging: They are often used in industrial settings for lifting heavy objects or equipment using chains, cables, or other lifting mechanisms.
  • Marine and Offshore: Stainless Steel 321's corrosion resistance makes these eye bolts suitable for marine and offshore applications, such as boat rigging and securing equipment in saltwater environments.
  • Aerospace: In aerospace applications, where high-temperature and corrosion-resistant materials are essential, these eye bolts may be used for securing equipment and components.
  • Chemical Processing: They find application in chemical processing industries, particularly when exposure to corrosive chemicals is a concern.
  • High-Temperature Environments: The heat resistance of Stainless Steel 321 makes these eye bolts suitable for use in high-temperature environments, such as ovens, kilns, and furnaces.


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fevicon-logo SS 321 Eye Bolts Specification

SpecificationsASTM F593, A193 / ASME SA193
StandardDIN, ISO, JIS, GB, IS, BS, ASTM and all International Standards
DiameterM3 to M72
ThreadsMETRIC, BSW, BSF, UNC, UNF or as required
DIN Standard B.S. DIN 933, DIN 931, DIN 934, DIN 912, DIN 603, DIN 6923, DIN 970, DIN 7981, DIN 7982, DIN916, DIN 913, DIN 7985
UTS UNC, UNF, UNEF, UNS, NPT, NPTF
Dimensions ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded.
ISOISO 4032, ISO 4033, ISO 4017, ISO7380 JIS standards
Surface treatmentPassivation, Polish, Anodizing, Sand blasting, Black oxide coating, Heat-disposing, Rust preventive oil, Hot dip galvanized Eye Bolts, Electroplating (color, blue, white, black zinc, Ni, Cr, tin, copper, silver).

Heat Treatment:

Stainless Steel 321, as an alloy, undergoes a specific heat treatment process to optimize its properties, including its heat resistance and corrosion resistance. The heat treatment typically involves annealing, which helps to reduce the risk of intergranular corrosion and enhances the material's high-temperature strength. The specific heat treatment process may include:


Annealing:

This process involves heating the material to a specific temperature range and then slowly cooling it. Annealing helps to reduce the risk of sensitization, a condition where chromium carbides can form along the grain boundaries, making the material susceptible to corrosion. By stabilizing the alloy, Stainless Steel 321 is made more suitable for high-temperature and corrosive environments.


Quality Assurance

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fevicon-logo Equivalent Grades Of Stainless Steel 321 Eye Bolts

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321 S32100 321S31 58B, 58C 1.4541 X6CrNiTi18-10 2337 SUS 321

fevicon-logo Chemical Composition of Stainless Steel 321 Eye Bolts

Grade Mn N P C S Cr Mo Si Ni Other
321 min. max 2.00 0.10 0.045 - 0.08 0.030 17.0 19.0 - 0.75 9.0 12.0 Ti=5(C+N) 0.70

fevicon-logo Mechanical Properties of SS 321 Eye Bolts

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
321 515 205 40 95 217

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fevicon-logo Types of Stainless Steel 321 Eye Bolts

Eye Bolt

SS 321 Eye Bolt

Bent Eye Bolts

SS 321 Bent Eye Bolts

Eye Tap Bolt

SS 321 Eye Tap Bolt

Lifting Eye Bolt

SS 321 Lifting Eye Bolt

Half Threaded Eye Bolt

SS 321 Half Threaded Eye Bolt

Fully Threaded Eye Bolt

321 SS Fully Threaded Eye Bolt

Eye Machine Bolt

SS 321 Eye Machine Bolt

eye Shoulder Bolt

SS 321 Eye Shoulder Bolt


Eye Bolt Manufacturers In India

  • Hardness testing to ISO 6508-1

  • Nut proof load testing to ISO 898-2

  • Suitability for preloading to EN 14399-2

  • Calibrated gauges and tools


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fevicon-logo Stainless Steel 321 Eye Bolts Application Industries

Aerospace Industry
Nuclear Industry
MEdical Industry
Marine Industry
Mining Industry
Automotive Industry
Construction Industry
Manufacturing Industry
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