Stainless steel is a type of steel that contains a minimum of 10.5% chromium by mass, giving it its characteristic resistance to corrosion and rust. One specific type of stainless steel, known as Stainless Steel 347, has become popular for use in hex bolts due to its unique combination of properties.


Features of Stainless Steel 347 Hex Bolt Stainless Steel 347 hex bolts are made from a high-strength, corrosion-resistant alloy. Here are some notable features of this type of bolt:

  • High tensile strength: With a minimum yield strength of 30 ksi and ultimate tensile strength of 75 ksi, Stainless Steel 347 hex bolts offer exceptional strength and can withstand heavy loads.
  • Corrosion resistance: As mentioned earlier, the high chromium content in Stainless Steel 347 gives it excellent corrosion resistance, making it ideal for use in harsh environments that are prone to corrosion.
  • Heat resistance: Stainless Steel 347 can withstand elevated temperatures up to 1600°F (870°C) without losing its strength and corrosion resistance. This makes it suitable for use in high-temperature applications, such as in chemical processing plants and power generation facilities.


SS 347 Hex Head Bolts, Manufacturer Of SS 347 Heavy Hex Bolts, Steel 347 Hex Bolts, Stainless Steel 347 Hexagon Bolt, Stainless Steel 347 Flange Hex Bolt, SS 347 Hex Bolts, SS 347 Hex Bolts Manufacturers in India.


Stainless Steel 347 Hex Bolts
  • UNS

    S34700

  • WNR

    1.4550

  • ASTM / ASME

    ASTM A193 / SA193

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Stainless Steel 347 Hex Bolt Suppliers, SS 347 Hexagonal Bolt, SS 347 Hex Bolt Manufacturers, Stainless Steel 347 Heavy Hex Head Bolt Stockist, 347 Stainless Steel Hex Shoulder Bolt.


Applications of Stainless Steel 347 Hex Bolt Stainless Steel 347 hex bolts find applications in various industries due to their unique features. Here are some common uses of this type of bolt:

  • Chemical processing: Due to its corrosion resistance and heat resistance, Stainless Steel 347 hex bolts are commonly used in chemical processing equipment, such as pumps, valves, and pipelines.
  • Power generation: The high strength and heat resistance of Stainless Steel 347 make it suitable for use in power generation facilities, including nuclear and thermal plants.
  • Aerospace and defense: The aerospace industry also utilizes Stainless Steel 347 hex bolts due to their strength, corrosion resistance, and ability to withstand high temperatures.
  • Automotive: In the automotive industry, Stainless Steel 347 hex bolts are used in engine components that require high strength and corrosion resistance, such as exhaust systems and turbochargers.


Stainless Steel 347 Hex Bolts, ASTM A193 UNS S34700 Hex Bolts, UNS S34700 Hex Bolts, SS 347 Hex Bolt, SS 347 Hex Head Bolt, SS 347 Hex Bolt Manufacturers in India.


fevicon-logo SS 347 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 Stainless Steel 347 Hex Bolt Stainless Steel 347 hex bolts can be heat treated to enhance their properties. Here are the commonly used heat treatment processes for this type of bolt:

  • Annealing: This process involves heating the bolt to a high temperature and then slowly cooling it down. It helps to improve the machinability and ductility of Stainless Steel 347 hex bolts.
  • Quenching and tempering: In this process, the bolt is heated to a high temperature and then rapidly cooled by quenching in water or oil. This results in increased hardness and strength, making the bolt suitable for heavy-duty applications.
  • Solution treatment: This process involves heating the bolt to a high temperature and then cooling it rapidly to dissolve any carbides present in the metal. It helps to improve the corrosion resistance of Stainless Steel 347 hex bolts.


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fevicon-logo Equivalent Grades Of Stainless Steel 347 Hex Bolts

STANDARD WERKSTOFF NR. UNS JIS GOST EN
SS 347 1.4550 S34700 SUS 347 08Ch18N12B X6CrNiNb18-10

fevicon-logo Chemical Composition of Stainless Steel 347 Hex Bolts

Grade C Mn Si P S Cr Cb Ni Fe
SS 347 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 20.00 10xC – 1.10 9.00 - 13.00 62.74 min

fevicon-logo Mechanical Properties of SS 347 Hex Bolts

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

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fevicon-logo Types of Stainless Steel 347 Hex Bolts

Hex Bolt

SS 347 Hex Bolt

Heavy Hex Bolt

SS 347 Heavy Hex Bolt

Hex Tap Bolt

SS 347 Hex Tap Bolt

Hex Flange Bolt

SS 347 Hex Flange Bolt

Half Threaded Hex Bolt

SS 347 Half Threaded Hex Bolt

Fully Threaded Hex Bolt

347 SS Fully Threaded Hex Bolt

Hex Machine Bolt

SS 347 Hex Machine Bolt

Hex Shoulder Bolt

SS 347 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


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fevicon-logo Stainless Steel 347 Hex Bolts Application Industries

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