Stainless steel 317L hex bolts are high strength fasteners used in a variety of applications due to their exceptional corrosion resistance and durability. In this guide, we will discuss the features, machining, heat treatment, applications, and corrosion resistance of stainless steel 317L hex bolts.


Features of Stainless Steel 317L Hex Bolts Stainless steel 317L hex bolts are made from a low carbon version of stainless steel 317, which contains higher levels of chromium, nickel, and molybdenum. This results in increased resistance to corrosion, making them suitable for use in harsh environmental conditions or applications that require exposure to high temperatures.


The addition of molybdenum also improves the strength and workability of stainless steel 317L hex bolts, making them ideal for heavy-duty applications.


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Stainless Steel 317L Hex Bolts
  • UNS

    S31703

  • WNR

    1.4438

  • ASTM / ASME

    ASTM A193 / SA193

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Machining Stainless Steel 317L Hex Bolts Stainless steel 317L hex bolts are easy to machine, thanks to their low carbon content and ductility. However, due to their high strength, specialized tools and techniques may be required for efficient machining. It is important to use proper lubrication during the machining process to prevent overheating and maintain the corrosion resistance of the bolts.


Heat Treatment of Stainless Steel 317L Hex Bolts Stainless steel 317L hex bolts can be heat treated to further enhance their strength and hardness. This process involves heating the bolts to a specific temperature and then cooling them at a controlled rate. The result is increased durability and resistance to wear and tear, making stainless steel 317L hex bolts suitable for demanding applications.


Applications of Stainless Steel 317L Hex Bolts Stainless steel 317L hex bolts are commonly used in industries such as chemical processing, oil and gas, food and beverage, and marine due to their exceptional corrosion resistance. They are also used in construction, automotive, and aerospace industries for their strength and durability.


Other applications of stainless steel 317L hex bolts include fastening equipment in high temperature environments, such as boilers and heat exchangers. They are also used in pulp and paper processing, pharmaceuticals, and nuclear power plants.

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fevicon-logo SS 317L Hex Bolts Specification

Specifications ASTM A193 / ASME SA193
Standard ISO, ASTM, DIN, JIS, IS, GB, BS, and all International Standards
Diameter M3 to M100 up to 1000 MM
DIN Standard B.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 Coating Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Manufacturing Process Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.

Corrosion Resistance of Stainless Steel 317L Hex Bolts One of the most significant features of stainless steel 317L hex bolts is their exceptional corrosion resistance. They are highly resistant to a wide range of corrosive chemicals, including sulfuric acid, hydrochloric acid, and organic acids.


Stainless steel 317L hex bolts also have excellent resistance to pitting and crevice corrosion, making them suitable for use in seawater and other harsh environments.


In addition to their resistance to chemicals, stainless steel 317L hex bolts also have high durability and can withstand extreme temperature variations without losing their strength or corrosion resistance.


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fevicon-logo Equivalent Grades Of Stainless Steel 317L Hex Bolts

STANDARD WERKSTOFF NR. UNS JIS EN
SS 317L 1.4438 S31703 SUS 317L X2CrNiMo18-15-4

fevicon-logo Chemical Composition of Stainless Steel 317L Hex Bolts

Grade C Mn Si P S Cr Mo Ni Fe
SS 317L 0.035 max 2.0 max 1.0 max 0.045 max 0.030 max 18.00 - 20.00 3.00 - 4.00 11.00 - 15.00 57.89 min

fevicon-logo Mechanical Properties of SS 317L Hex Bolts

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
7.9 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

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fevicon-logo Types of Stainless Steel 317L Hex Bolts

Hex Bolt

SS 317L Hex Bolt

Heavy Hex Bolt

SS 317L Heavy Hex Bolt

Hex Tap Bolt

SS 317L Hex Tap Bolt

Hex Flange Bolt

SS 317L Hex Flange Bolt

Half Threaded Hex Bolt

SS 317L Half Threaded Hex Bolt

Fully Threaded Hex Bolt

317L SS Fully Threaded Hex Bolt

Hex Machine Bolt

SS 317L Hex Machine Bolt

Hex Shoulder Bolt

SS 317L 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 317L Hex Bolts

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fevicon-logo Stainless Steel 317L Hex Bolts Application Industries

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