Duplex 2205 Stainless Steel Nuts Fasteners contains high amount chromium, molybdenum and nitrogen in its chemical composition. Austenitic nature of Duplex 2205 Nuts Fasteners helps in ease of fabrication and provides excellent resistance towards corrosion and its ferritic natures adds high strength, good impact strength and high resistance towards stress corrosion cracking. UNS S32205 Duplex 2205 Nuts Fasteners consist of 22% Chromium and 3% Molybdenum, 5 to 6% Nickel alloyed stainless steel. UNS S31803 Nuts or UNS S32205 Nuts displays good resistance towards pitting and crevice corrosion even in various conditions like oxidizing, acidic and caustic environments. 1.4462 Duplex 2205 Nuts displays excellent weldability quality and should be done without use of any filler metals, as it might result in excess of ferrite. F50 Nuts Fasteners should be used at temperatures below 600 F, as exposure to elevated temperature can result into embrittle state of alloy 2205 Fasteners.

An ISO 9001:2008 Certified Company Hex Tubes Inc is a leading manufacturer, supplier, stockist and exporter of different types of Duplex 2205 nuts fasteners like acorn nuts, cap nut, castle nuts, coupling nut, square nut. Common applications for 2205 Duplex Nuts Fasteners are chemical industry, flue-gas cleaning, desalination plants and seawater systems and pulp and paper industry, oil and gas equipment, offshore technology, seawater desalination plants,

All our products are put through a strict 3rd Party Inspection and are offered with a NACE 3.1 Certification, Mill Test Certification, and ISO 17025 Standards by a Government of India approved Laboratory. Management has decades of experience in the metals industry.

Our dynamic team and wide source networking forms as our key strength. To meet the exact need of clients we put our metals through specialized equipment’s so that the materials or metals can be delivered with zero defects. We do positive material identification on all the raw materials supplied by us.

Duplex 2205 Nuts Chemical Composition | Duplex 2205 Nuts Mechanical Properties | Duplex 2205 Nuts Physical Properties :

Types Of Nuts

1. UNS N32205 Hex Nuts – WNR 1.4462 Duplex 2205 Hex nuts are typical nuts with standard dimension. As name suggest, they are hexagonal in shape with threaded hole in the center. Bolt are threaded into hex nuts to form a strong joint. Also called as ASTM A182 Hex Nuts.
2. UNS N32205 Heavy Hex Nuts – WNR 1.4462 Duplex 2205 Heavy hex nuts are similar to standard hex nuts with addition in its thickness. They are primarily used for heavy applications with high strength bolts of larger diameters. Approximately thickness of 2.2 to 5 gets added to the threaded portion of nuts due to hot dip galvanizing process. To compensate for the resistance towards corrosion coating on nuts, such Heavy hex nut are tapped. Hex Tubes Inc provides them in different sizes and grades. Also called as ASTM A182  Heavy Hex Nuts.
3.  UNS N32205 Lock Nuts – WNR 1.4462 Duplex 2205 Lock Nuts are similar to hex pattern or heavy hex pattern nuts with addition of locking mechanism to it. Lock Nuts are usually of two types Anco style and tri lock style. Also called as ASTM A182 Lock Nuts.
4. UNS N32205 Auto Lock Nuts – WNR 1.4462 Duplex 2205 auto lock nuts are basically lock nuts which has higher resistance to vibrations and torque which prevents it from loosening. They are also known as Lock nuts, Self- Locking nuts, Self- lock nuts, prevailing torque nuts, stiff nuts, elastic stop nuts. Prevailing Torque nuts or Elastic Stop Nuts works on same mechanism where some portion or part of the nut deforms elastically which in turn provides with locking action and resist from loosening. They are generally used in application where vibrations and torque is common. Also called as ASTM A182 Auto Lock Nuts.
5. UNS N32205 Anco Style Lock Nuts – WNR 1.4462 Duplex 2205 Anco Lock nuts falls under the category of a self-locking nut. This style of locking nut comes with a ratchet pin that is usually made out of stainless steel. As the nut is spun on the bolt, the ratchet pin slides along the threads of bolt and prevents the nut from loosening or falling back. Additional benefit that Anco Style Locking Nuts offers is the ratchet pin can easily be bent to remove the nut without causing any kind of damage. Also called as ASTM A182 Style Lock nuts.
6. UNS N32205 Tri Lock Style Lock Nuts – WNR 1.4462 Duplex 2205 Tri-Lok Nuts falls under prevailing-torque mechanism category. This style of locknut is frictionally resistant towards rotation. This resistance is due to the thread distortion action the nut offers which is on the top thread of the nut. Also called as ASTM A182 Tri Lock Nuts.
7. UNS N32205 2 Way Lock Nuts – WNR 1.4462 Duplex 2 way lock nuts are also known as Centre Lock Nuts. These nuts are highly functional and adaptable due to their unique ability of used either top down or top up. They have indentations on the outer flats of nuts which cause distortion in the internal threads resulting in additional resistance towards loosening from the mating part. This process creates an locking mechanism in central part of nuts and hence known as central locking nut. Also called as ASTM A182 Two Way Lock Nuts.
8. UNS N32205 Keps Nuts– WNR 1.4462 Duplex 2205 Keps Nuts are also known as Keps lock nuts or K lock nuts. It consists of a Hexagonal nut with free spinning washer attached to it and hence known also as Washer lock nuts. Washer at the end creates a secured lock thereby proving to be more convenient to entire assembly. Also called as ASTM A182 Keps Nuts.
9. UNS N32205 Acorn Nuts – WNR 1.4462 Duplex 2205 Acorn Nuts as the name suggest are similar to hex nuts but with an addition of a dome or cap on the top and hence also know as dome nut or cap nut. The cap on the top of the nut has 2 primary functionality; one is to protect the inner thread of bolts from other surfaces or to protect other surfaces from the thread thereby reducing damage. They also add up to a much finished appearance. Hence also know as Crown Nut. Also called as ASTM A182 Acorn Nuts or ASTM A182 Crown Nuts.
10. UNS N32205 Castle Nuts – WNR 1.4462 Duplex 2205 Castle Nuts is very similar to Slotted nut but has additional rounded modification or turret shape on top. They have slots or notches which resembles like castle and are positioned on top of the nut. Castle nuts are also designed to be used with cotter, steel pins, split pins, taper pins, or wire to lock the nut. They are applicable in conditions where vibrations can cause nut to loosen. Also called as ASTM A182 Castle Nuts.
11. UNS N32205 Slotted Nuts – WNR 1.4462 Duplex 2205 Slotted Nuts is very similar to castle nut but do not have the rounded modification or turret  shape on top. Slotted nuts have slots but have flats sides which extend fully from top to bottom. Slotted nuts are also designed to be used with cotter, steel pins, split pins, taper pins, or wire to lock the nut. They are applicable in conditions where vibrations can cause nut to loosen. Also called as ASTM A182 Slotted nuts.
12. UNS N32205 Flex Lock Nuts – WNR 1.4462 Duplex 2205 Flex Lock Nuts is a typical hex shaped lock nut with a segmented collar on the top. The collar is segmented in opposed slots pattern which when spun on bolt tightly, the slotted portion on collar expands thereby creating a prevailing torque action and locking the nut tightly. Also called as ASTM A182 Flex Lock Nuts.
13. UNS N32205 Coupling Nuts – WNR 1.4462 Duplex 2205 Coupling nuts are similar to hex nuts but are longer in size. They are used to create a joint or extension between two threaded materials like rods, bolts, pipes etc. and hence are also called as Extension Nuts. Hex Coupler is threaded right handed. Sleeve Nuts are used if requirement demands left handed coupler is demanded. Also called as ASTM A182 Coupling Nuts.
14. UNS N32205 Sleeve Nuts – WNR 1.4462 Duplex 2205 Sleeve Nuts very similar to coupling nuts. They are used to create a joint or extension between two threaded materials like rods, bolts, pipes etc. and hence are also called as Extension Nuts. Hex Coupler is threaded right handed. Sleeve Nuts are used if requirement demands left handed coupler is demanded. Also called as ASTM A182  Sleeve Nuts.
15. UNS N32205 Square Nuts – WNR 1.4462 Duplex 2205 Square nuts as name suggests are similar to normal hex nuts but are square in shape. They are used in conjunction with Square type bolts. They are mostly applicable in pole line hardware. Also called as ASTM A182 Square Nuts.
16. UNS N32205 Tee Nuts – WNR 1.4462 Duplex 2205 Tee Nuts or Duplex 2205 T nuts  are nuts which are applicable on wood, composite or particle material. They are primarily used to obtain a flush surface. It consist of thin and long body with a flange at one end. This flange resembling like a t profile hence the name T nuts.. Since it leaves a flush or smooth surface it is also known as blind flange. As this nut pierces within the surface it is also known as insert nut or rivet nut. Also called as ASTM A182 Tee nuts or ASTM A182 Rivet Nuts.
17. UNS N32205 Wing Nuts –  WNR 1.4462 Duplex 2205 Wing Nut is basically a nut which can be spun around with fingers. It has 2 wings on the nut which provides a good grip for thumbs and fingers to be easily tightened. It doesn’t require additional tools to tighten. Also called as ASTM A182  Wing Nuts.
18. UNS N32205 Flange Lock Nuts – WNR 1.4462 Duplex 2205 Flange Lock Nuts as the name suggest are similar to hex nut with an addition of a Flange on the one side. This flange acts like an integrated washer which helps to distribute the pressure in evenly fashion on the part being secured. This creates a stronger joint which distributes pressure uniformly  and is less likely to loosen.
    Also called as ASTM A182 Flange Lock Nuts.
19. UNS N32205 Hex Jam Nuts – WNR 1.4462 Duplex 2205 Hex Jam Nuts are very similar to hex nuts. They are exclusively used for their multiple functionality nature. Jam Nuts can be used as a back up to other nut by threading it tightly against regular nut. It provides additional secured tightening which prevents the any type of loosening. It is also at times used for leveling purposes. Also called as ASTM A182 Hex Jam Nuts.

Types Of Duplex 2205 Nuts

1. UNS S32205 Hex Nuts – WNR 1.4462 Duplex 2205 Hex nuts are typical nuts with standard dimension. As name suggest, they are hexagonal in shape with threaded hole in the center. Bolt are threaded into hex nuts to form a strong joint. Also called as ASTM A182 Hex Nuts.
2. UNS S32205 Heavy Hex Nuts – WNR 1.4462 Duplex 2205 Heavy hex nuts are similar to standard hex nuts with addition in its thickness. They are primarily used for heavy applications with high strength bolts of larger diameters. Approximately thickness of 2.2 to 5 gets added to the threaded portion of nuts due to hot dip galvanizing process. To compensate for the resistance towards corrosion coating on nuts, such Heavy hex nut are tapped. Hex Tubes Inc provides them in different sizes and grades. Also called as ASTM A182  Heavy Hex Nuts.
3.  UNS S32205 Lock Nuts – WNR 1.4462 Duplex 2205 Lock Nuts are similar to hex pattern or heavy hex pattern nuts with addition of locking mechanism to it. Lock Nuts are usually of two types Anco style and tri lock style. Also called as ASTM A182 Lock Nuts.
4. UNS S32205 Auto Lock Nuts – WNR 1.4462 Duplex 2205 auto lock nuts are basically lock nuts which has higher resistance to vibrations and torque which prevents it from loosening. They are also known as Lock nuts, Self- Locking nuts, Self- lock nuts, prevailing torque nuts, stiff nuts, elastic stop nuts. Prevailing Torque nuts or Elastic Stop Nuts works on same mechanism where some portion or part of the nut deforms elastically which in turn provides with locking action and resist from loosening. They are generally used in application where vibrations and torque is common. Also called as ASTM A182 Auto Lock Nuts.
5. UNS S32205 Anco Style Lock Nuts – WNR 1.4462 Duplex 2205 Anco Lock nuts falls under the category of a self-locking nut. This style of locking nut comes with a ratchet pin that is usually made out of stainless steel. As the nut is spun on the bolt, the ratchet pin slides along the threads of bolt and prevents the nut from loosening or falling back. Additional benefit that Anco Style Locking Nuts offers is the ratchet pin can easily be bent to remove the nut without causing any kind of damage. Also called as ASTM A182 Style Lock nuts.
6. UNS S32205 Tri Lock Style Lock Nuts – WNR 1.4462 Duplex 2205 Tri-Lok Nuts falls under prevailing-torque mechanism category. This style of locknut is frictionally resistant towards rotation. This resistance is due to the thread distortion action the nut offers which is on the top thread of the nut. Also called as ASTM A182 Tri Lock Nuts.
7. UNS S32205 2 Way Lock Nuts – WNR 1.4462 Duplex 2 way lock nuts are also known as Centre Lock Nuts. These nuts are highly functional and adaptable due to their unique ability of used either top down or top up. They have indentations on the outer flats of nuts which cause distortion in the internal threads resulting in additional resistance towards loosening from the mating part. This process creates an locking mechanism in central part of nuts and hence known as central locking nut. Also called as ASTM A182 Two Way Lock Nuts.
8. UNS S32205 Keps Nuts– WNR 1.4462 Duplex 2205 Keps Nuts are also known as Keps lock nuts or K lock nuts. It consists of a Hexagonal nut with free spinning washer attached to it and hence known also as Washer lock nuts. Washer at the end creates a secured lock thereby proving to be more convenient to entire assembly. Also called as ASTM A182 Keps Nuts.
9. UNS S32205 Acorn Nuts – WNR 1.4462 Duplex 2205 Acorn Nuts as the name suggest are similar to hex nuts but with an addition of a dome or cap on the top and hence also know as dome nut or cap nut. The cap on the top of the nut has 2 primary functionality; one is to protect the inner thread of bolts from other surfaces or to protect other surfaces from the thread thereby reducing damage. They also add up to a much finished appearance. Hence also know as Crown Nut. Also called as ASTM A182 Acorn Nuts or ASTM A182 Crown Nuts.
10. UNS S32205 Castle Nuts – WNR 1.4462 Duplex 2205 Castle Nuts is very similar to Slotted nut but has additional rounded modification or turret shape on top. They have slots or notches which resembles like castle and are positioned on top of the nut. Castle nuts are also designed to be used with cotter, steel pins, split pins, taper pins, or wire to lock the nut. They are applicable in conditions where vibrations can cause nut to loosen. Also called as ASTM A182 Castle Nuts.
11. UNS S32205 Slotted Nuts – WNR 1.4462 Duplex 2205 Slotted Nuts is very similar to castle nut but do not have the rounded modification or turret  shape on top. Slotted nuts have slots but have flats sides which extend fully from top to bottom. Slotted nuts are also designed to be used with cotter, steel pins, split pins, taper pins, or wire to lock the nut. They are applicable in conditions where vibrations can cause nut to loosen. Also called as ASTM A182 Slotted nuts.
12. UNS S32205 Flex Lock Nuts – WNR 1.4462 Duplex 2205 Flex Lock Nuts is a typical hex shaped lock nut with a segmented collar on the top. The collar is segmented in opposed slots pattern which when spun on bolt tightly, the slotted portion on collar expands thereby creating a prevailing torque action and locking the nut tightly. Also called as ASTM A182 Flex Lock Nuts.
13. UNS S32205 Coupling Nuts – WNR 1.4462 Duplex 2205 Coupling nuts are similar to hex nuts but are longer in size. They are used to create a joint or extension between two threaded materials like rods, bolts, pipes etc. and hence are also called as Extension Nuts. Hex Coupler is threaded right handed. Sleeve Nuts are used if requirement demands left handed coupler is demanded. Also called as ASTM A182 Coupling Nuts.
14. UNS S32205 Sleeve Nuts – WNR 1.4462 Duplex 2205 Sleeve Nuts very similar to coupling nuts. They are used to create a joint or extension between two threaded materials like rods, bolts, pipes etc. and hence are also called as Extension Nuts. Hex Coupler is threaded right handed. Sleeve Nuts are used if requirement demands left handed coupler is demanded. Also called as ASTM A182  Sleeve Nuts.
15. UNS S32205 Square Nuts – WNR 1.4462 Duplex 2205 Square nuts as name suggests are similar to normal hex nuts but are square in shape. They are used in conjunction with Square type bolts. They are mostly applicable in pole line hardware. Also called as ASTM A182 Square Nuts.
16. UNS S32205 Tee Nuts – WNR 1.4462 Duplex 2205 Tee Nuts or Duplex 2205 T nuts  are nuts which are applicable on wood, composite or particle material. They are primarily used to obtain a flush surface. It consist of thin and long body with a flange at one end. This flange resembling like a t profile hence the name T nuts.. Since it leaves a flush or smooth surface it is also known as blind flange. As this nut pierces within the surface it is also known as insert nut or rivet nut. Also called as ASTM A182 Tee nuts or ASTM A182 Rivet Nuts.
17. UNS S32205 Wing Nuts –  WNR 1.4462 Duplex 2205 Wing Nut is basically a nut which can be spun around with fingers. It has 2 wings on the nut which provides a good grip for thumbs and fingers to be easily tightened. It doesn’t require additional tools to tighten. Also called as ASTM A182  Wing Nuts.
18. UNS S32205 Flange Lock Nuts – WNR 1.4462 Duplex 2205 Flange Lock Nuts as the name suggest are similar to hex nut with an addition of a Flange on the one side. This flange acts like an integrated washer which helps to distribute the pressure in evenly fashion on the part being secured. This creates a stronger joint which distributes pressure uniformly  and is less likely to loosen.
    Also called as ASTM A182 Flange Lock Nuts.
19. UNS S32205 Hex Jam Nuts – WNR 1.4462 Duplex 2205 Hex Jam Nuts are very similar to hex nuts. They are exclusively used for their multiple functionality nature. Jam Nuts can be used as a back up to other nut by threading it tightly against regular nut. It provides additional secured tightening which prevents the any type of loosening. It is also at times used for leveling purposes. Also called as ASTM A182 Hex Jam Nuts.