Stainless steel 321 hex bolts are a type of fastener that is commonly used in various applications due to their high strength, corrosion resistance, and durability. They are made from stainless steel grade 321, which contains chromium, nickel, and titanium as its main alloying elements. This composition makes SS 321 hex bolts resistant to high temperatures and corrosive environments, making them ideal for use in a wide range of industries.


Features of SS 321 Hex Bolts SS 321 hex bolts offer several features that make them popular in various applications. Some of the key features include:

  • High strength: Stainless steel 321 hex bolts have a tensile strength of 515 MPa, making them strong enough to withstand heavy loads and high pressure.
  • Corrosion resistance: The chromium content in SS 321 hex bolts makes them highly resistant to corrosion, even in harsh environments with exposure to chemicals or saltwater.
  • Heat resistance: The addition of titanium in the alloy composition gives SS 321 hex bolts excellent heat resistance, making them suitable for use in high-temperature applications.
  • Low maintenance: Due to their resistance to corrosion and heat, Stainless steel 321 hex bolts require minimal maintenance, reducing the need for frequent replacements.


SS 321 Hex Bolts, Stainless Steel 321 Flange Hex Bolt, SS 321 Hex Head Bolts, Steel 321 Hex Bolts, Stainless Steel 321 Hexagon Bolt, Manufacturer Of SS 321 Heavy Hex Bolts, SS 321 Hex Bolts Manufacturers in India.


Stainless Steel 321 Hex Bolts
  • UNS

    S32100

  • WNR

    1.4541

  • ASTM / ASME

    ASTM A193 / SA193

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Stainless Steel 321 Hex Bolt Suppliers, Stainless Steel 321 Heavy Hex Head Bolt Stockist, SS 321 Hex Bolt Manufacturers, SS 321 Hexagonal Bolt, 321 Stainless Steel Hex Shoulder Bolt.


Applications of SS 321 Hex Bolts SS UNS S32100 hex bolts are widely used in various industries that require strong and corrosion-resistant fasteners. Some common applications include:

  • Aerospace industry: Stainless steel 321 hex bolts are used in aircraft engines and components due to their high strength, heat resistance, and corrosion resistance.
  • Chemical processing: The corrosion-resistant properties of SS 321 hex bolts make them suitable for use in chemical processing equipment and plants.
  • Food and beverage industry: These fasteners are commonly used in food processing equipment where corrosion resistance is crucial to maintain hygiene and safety standards.
  • Power generation: SS 321 hex bolts are used in power plants and turbines, where they can withstand high temperatures and corrosive environments.


ASTM A193 UNS S32100 Hex Bolts, UNS S32100 Hex Bolts, SS 321 Hex Head Bolt, Stainless Steel 321 Hex Bolts, SS 321 Hex Bolt, SS 321 Hex Bolt Manufacturers in India.


fevicon-logo SS 321 Hex Bolts Specification

SpecificationsASTM A193 / ASME SA193
StandardISO, ASTM, DIN, JIS, IS, GB, BS, and all International Standards
DiameterM3 to M100 up to 1000 MM
DIN StandardB.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913
UTS NPT, UNS, UNF, UNC, UNEF, NPTF
ISO ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards
Threads UNF, BSW, BSF, METRIC, UNC, or as required
Surface CoatingBlack Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Manufacturing ProcessWire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.

Heat Treatment of SS 321 Hex Bolts Stainless steel 321 hex bolts can be heat treated to further enhance their strength and resistance properties. This process involves heating the bolts to a specific temperature and then cooling them at a controlled rate. It helps in improving the microstructure of the material, making it stronger and more resistant to corrosion. Heat treatment also allows for better machinability, making it easier to shape and modify the bolts for specific applications.


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fevicon-logo Equivalent Grades Of Stainless Steel 321 Hex Bolts

STANDARD WERKSTOFF NR. UNS JIS EN
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10

fevicon-logo Chemical Composition of Stainless Steel 321 Hex Bolts

Grade C Mn Si P S Cr N Ni Ti
SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 - 12.00 5(C+N) – 0.70 max

fevicon-logo Mechanical Properties of SS 321 Hex Bolts

Grade C Mn Si P S Cr N Ni Ti
SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 - 12.00 5(C+N) – 0.70 max

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fevicon-logo Types of Stainless Steel 321 Hex Bolts

Hex Bolt

SS 321 Hex Bolt

Heavy Hex Bolt

SS 321 Heavy Hex Bolt

Hex Tap Bolt

SS 321 Hex Tap Bolt

Hex Flange Bolt

SS 321 Hex Flange Bolt

Half Threaded Hex Bolt

SS 321 Half Threaded Hex Bolt

Fully Threaded Hex Bolt

321 SS Fully Threaded Hex Bolt

Hex Machine Bolt

SS 321 Hex Machine Bolt

Hex Shoulder Bolt

SS 321 Hex Shoulder Bolt


Hex 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


fevicon-logo Other Types Of Stainless Steel 321 Hex Bolts

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UNS S32100 Hex Bolt Stainless Steel 321 Heavy Hex Bolt Manufacturer in Mumbai
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fevicon-logo Stainless Steel 321 Hex Bolts Application Industries

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