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Duplex Steel UNS S31803, S32550, S32750, S32205, S32760 Fasteners

Duplex Steel UNS S31803, S32550, S32750, S32205, S32760, Alloy 2205, F60, F51, F61, F55, F53 - Stainless Steel Fasteners External Tooth Lock Washers : Agent, Exporter, Dealer, Distributor, Stockist, Stockholder and Supplier in India : 

• We at Citizen Metals is known for guaranteed fast delivery of the Duplex 2205 Fasteners to South Africa, West African Countries, Russia and in entire Gulf Countries. The main reason being we have an excellent warehousing and storage facilities in India, UAE, Korea and Gauteng(South Africa).They are made ready as per the urgent requirements of the customers. The Duplex Steel 2205 Fasteners are manufactured to sustain very high pressure and product warranty.
• Lot of emphasis is placed on the packaging. The Duplex Steel 2205 Fasteners are packed in wooden corrugated boxes foiled in plastic wraps and bubble wraps.
• Duplex Steel 2205 Fasteners are offered with a NACE 3.1 Certification, Mill Test Certification and ISO 17025 Standards by a Government of India approved Laboratory. Positive Material Identification is done on all raw material procured at Citizen Metals.
• Citizen Metals have exported Duplex Steel 2205 Fasteners  to over 60 countries including Sudan, UAE, UK, Iran, Iraq, Qatar, Bahrain, Oman, Yemen, Lebanon, Jordan, Saudi Arabia, Malaysia, Indonesia, Singapore, Australia, New Zealand, USA, Canada, Mexico, Brazil, Netherlands, Germany, Italy, Spain, Serbia, Kuwait, Peru, Nigeria, Poland, South Africa, Denmark, Turkey, Egypt, Venezuela, Kuwait, Madagascar, Angola& , Srilanka.
• The Duplex Steel 2205 Fasteners are used in Hardware, Petro-Chemical Industry, Oil and Gas Industry, Nuclear Industry, Pulp & Paper Industry, Research & Development , Mega Projects & Defense & Development Industries. In fact wing to the special grade of steel Duplex Steel 2205 Fasteners are used for all critical applications.
• Duplex Steel 2205 is the easily the most selling Grade of Duplex Steel Series due to the excellent properties and general usage in highly corrosive environment. We have more than 2 decades of experience in serving Stainless Steel & other alloys specially Fasteners, Bolts, Nuts, Studs etc. Majorly used in the Oil and Gas Industry.
• In 2016 we have ready stock of more than 50 tons of Duplex Steel 2205 Fasteners in all sizes, in Seamless and Welded to cater to immediate delivery and urgent needs of the clients. For small requirements we can dispatch the Fasteners immediately against the purchase order

External Tooth Lock Washers

Lock washersare used to resist loosening of bolted joints. There are essentially two types: spring action and tooth.

Spring action lock washers include split (helical spring), which are also called spring washers. These washers, placed under the nut or screw head, compress as the fastener is tightened and the spring-back tension deters loosening. Also, because of their spring-like take-up action, split lock washers can compensate for slight material wear. But because spring types flatten when tightened, their "locking" action doesn't come into play until the fastener has slightly loosened. Use regular for Grade 2 hex cap screws and high strength alloy steel for Grade 5 and 8 hex cap screws.

Tooth lock washers—internal, external, internal-external and countersunk external—create a ratchet action by biting into the nut or screw head and the surface it contacts. Despite their widespread usage, tooth lock washers can scratch mating surfaces.

A final option is the lock set pair. Also called vibration-resistant lock washers and Nord-Lock washer assemblies, the set consists of two pieces: a top and a bottom washer. These reusable washers have wedges on one side, which should be installed interlocked, and radial teeth on the opposite side. When the screw or nut is tightened, the teeth bite into the screw head or nut and the mating material to prevent slippage, while the wedges increase tension to resist loosening.

Aside from the additional time required, it can be difficult to install lock washers in tight places or when the bolt or screw is pointing down.

The different types of lock washers are described below…

Table 1. Lock Washers.A list of common lock washer styles and types.

Lock Washers
Hi-Collar Lock Washers
These lock washers fit in space-limited areas due to their small outside diameter (OD). Designed for use with smaller head screws like socket head cap screws, hi-collar lock washers have increased thickness to preserve their locking ability. They are also called high collar lock washers, high collar spring lock washers and spring washers.
Lock Set Pair Lock Washers
Lock Set Pairs are supplied as an assembly: one pair includes a top and a bottom washer. Install these reusable washers with the wedges interlocked and radial teeth on the opposite side. Also known as Nord-Lock washer assembly and vibration-resistant lock washers.
Split Lock Washers
These helical spring lock washers are also referred to as spring washers and split ring lock washers and are available in regular, heavy pattern and high strength alloy steel. Heavy pattern offers a larger outside diameter (OD). High strength alloy steel washers are used with Grade 5 and 8 fasteners.
Countersunk External Tooth Lock Washers
Countersunk external tooth lock washers are used with standard 82° flat and oval head screws in countersunk holes. Sometimes called countersunk external lock washers and countersunk external tooth washers.
External Tooth Lock Washers
When used under a screw head, external tooth lock washers require a large head—like binding, pan or round—because the washer teeth must make contact with the head. Since the teeth are on the largest radius, which results in greater twisting resistance, this type is preferred when the greatest loosening resistance is desired. Also known as external lock washers and external tooth washers.
Internal Tooth Lock Washers
Internal tooth lock washers work best with small screw heads, such as fillister, and when the teeth—and the surface marks they create—need to be hidden for appearance reasons. Because the teeth must make contact with the mating surface, do not use with oversized holes. Also referred to as internal lock washers and internal tooth washers.
Internal-External Tooth Lock Washers
Having a larger outside diameter (OD) than "external" and "internal" types, internal-external tooth lock washers are used when a larger bearing surface is needed to optimize an electrical connection or because a hole is oversized or irregular. They are also used as an insert between two adjustable pieces to maintain mechanical alignment and are also called internal-external lock washers and internal-external tooth washers.

 

Duplex Steel 2205 Washers Available Types

A-325 Flat Washers Fender Washers Internal Tooth Lock Tooth Lock Washers

External Tooth Lock Plain Washers Square Washers Dome Plain Washers

Countersunk Washers Dock Washers Ogee Washers Bevel Washers

Flat Washers - SAE Flat Washers - USS Split Lock Washers Spring /Lock Washer

Hexagonal Washers Dome Tooth Washers Fender Washers

Duplex & Super Duplex Steel External Tooth Lock Washers

duplex stainless f51 f53 f55 f44 f904l fasteners bolt nut screw stud washer bolts nuts fastener threaded rod rods screws studs washers Bolt:

M6-M64; Nut: M3-M64 ;
Threaded Rod:4-2000mm (all thread, double end thread) 
Standards: DIN 931, DIN 933, DIN 934, DIN 439, DIN 835, DIN 7991, DIN 975, DIN 976, DIN 912, ISO, JIS, ANSI/ASME, BS, etc 
Packing : Plywood case or wooden box

Exported countries: United States, Germany, Saudi Arabia, South Korea, Kuwait, Turkey, United Arab Emirates, Oman, Egypt, Indonesia, Malaysia, Singapore, Thailand, Sri Lanka, Russia, West Africa& Latin Americaetc

Duplex Stainless Steel Fasteners	Super Duplex Stainless Steel Fasteners
Duplex Steel Washers Alloy 2205 Washers SAF 2205 ® Washers 1.4462 Washers S32205 Washers F60 Washers 31803 Washers 1.4462 Washers S31803 Washers F51 Washers	Super Duplex Washers / Alloy 255 Washers Ferralium 255 ® Washers European 1.4507 Washers UNS S32550 Washers / UNS S32750 Washers ASTM/ASME F61 Washers / ASTM/ASME F55 Washers / F53 Washers Zeron 100 Washers / Zeron 100 ® Washers European 1.4501 Washers UNS S32760 Washers Alloy 2507 Washers / SAF 2507 ® Washers European 1.4410 Washers

 

Duplex Steel External Tooth Lock Washers Dimensions

Duplex External Tooth Lock Washers

Duplex

Alloy	Common Name	Related Specifications
		European	UNS	ASTM/ASME
Alloy 2205	SAF 2205 ®	1.4462	S32205	F60
31803	31803	1.4462	S31803	F51

Citizen Metals produces duplex fasteners in all grades of duplex, to customer specification. Duplex grades are a mixed microstructure of Austenite and Ferrite, combining the properties of both (hence the name DUPLEX). Duplex stainless steels have high corrosion resistance as well as a high strength. Mechanical properties are around double that of a typical austenitic grade such as 316. They would also normally offer higher stress cracking resistance in Chloride solutions for example. They are composed typically of 22% Chromium, 5 % nickel. Having worked with duplex since its outset, the duplex bolting continues to account for a core part of our business, along with Super duplex.

Super Duplex Steel External Tooth Lock Washers Price

Super Duplex Steel Fasteners / Nut / Bolts / Washer / Screws
Min. Order: 1 Piece
FOB Price: US $1 to 100 (Fastener Available in Every Size)
Production Capacity: 500 Ton/Tons per Month
Tags : Super Duplex Steel Fasteners / Super Duplex Steel Nut / Super Duplex Steel Bolts / Super Duplex Steel Washer / Super Duplex Steel Screws

Duplex Steel 2205 Washers Available Types
A-325 Flat Washers Fender Washers Internal Tooth Lock External Tooth Lock Plain Washers Square Washers	Dome Plain Washers Countersunk Washers Dock Washers Ogee Washers Miscellaneous Washers	Bevel Washers Flat Washers - SAE Flat Washers - USS Split Lock Washers Spring /Lock Washer	Hexagonal Washers Dome Tooth Washers Fender Washers Tooth Lock Washers Customized Washers

 

SURFACE COATINGS
Mirror Buffed	Hot Dipped Galvanizing	Epoxy Coating	Electro Polished	Passivation
Teflon Coating	Oxidized	Zinc Plating	Chrome Plating

Origin Of Material

Brand Name : We are Dealer, Distributor, Stockist, Stockholder and Supplier of Below Brand Products
http://www.columbus.co.za : COLUMBUS in SOUTH AFRICA: Lean Duplex Steel - e.g. 2001/1.4482 / 2304/1.4362 / Standard duplex Steel e.g. 2205/1.4462.
http://www.jindalstainless.com/ : JINDAL ( JSL INDIA ): Duplex Steel Sheet PlatesManufacturers ---
http://www.aalco.co.uk/: AALCO in UKStainless Steel Pipes Tubes Manufacturers --
http://www.sail.co.in/: SALEM Productsin INDIA : Duplex Steel Sheet Plate Coils Manufacturers ---
http://www.specialsteelgroup.com/: SPECIAL STEEL LTD(UK): Duplex Stainless Steel Round Bar, Fastener Bolts Nuts & Flat Bar Manufacturers
http://www.pennstainless.com/: PENN STAINLESS( USA ) : Duplex Stainless Steel 2205& 2507 : Penn Stainless inventory now includes Duplex 2205 (UNS S32205 / S31803), in sheet, coil, plate, plate coil, round bar, processed flat bar and tubular products
http://www.nssmc.com/en/ : NIPPON STEEL & SUMITOMO METALS( JAPAN ) : Duplex Steel 2205& 2507 Sheet Plates Manufacturers ---
http://www.outokumpu.com/: OUTOKUMPU ( FINLAND & INDIA ) : Duplex Steel 2205 & 2507 Coil and sheet, Bar, Welded pipe & Plate Manufacturers ---
http://megamex.com/: MEGAMEX ( TEXAS USA ) : Mega Mex supplies LDX2101, 2205, Ferralium 255, Zeron 100 and 2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.
http://www.schoeller-bleckmann.co.uk/: SCHOELLER BLECKMANN ENGLAND & DUBAI: Schoeller-Bleckmann (UK) is a major stockholder and distributor of Stainless Steel Tube, Pipe & Hollow Bar.
http://smt.sandvik.com/en-in/: SANDVIK ( SWEDEN & INDIA ) : Duplex stainless steels / Sandvik SAF 2507, Sandvik SAF 2707 HD, Sandvik SAF 3207 HD / TUBE, PIPE, FITTINGS AND FLANGES Manufacturers in SWEDEN
http://www.tiogapipe.com/: TIOGA ( USA ) : Duplex Steel Pipe 2205 S31803/ S32205, A790 / SA790, Duplex Steel 2205 S31803 / S32205 , A815 / SA815, A182 / SA182 Fittings, Duplex Flanges Duplex 2205 S31803 / S32205, A182 / SA182 Manufacturers in Houston
http://www.specialpipingmaterials.com/duplex/: SPECIAL PIPING MATERIAL ( UK, ENGLAND, SCOTLAND, SINGAPORE, USA, AUSTRALIA, DUBAI, BRAZIL ) : High quality exotic piping products from approved manufacturers : Seamless Duplex 2205 Pipe, Welded Super Duplex Pipe, Super Duplex (both S32760 and S32750 / 2507 Buttweld Fittings, Flanges, Forged Fittings Manufacturers
http://www.langleyalloys.com/ : Langley Alloys : Duplex Stainless Steels Products Manufacturers
http://www.rolledalloys.com/: Rolled Alloys, Inc: Duplex Stainless Steel Pipes TubesManufacturers

Our Clients

Products	Duplex Steel Flanges, 2205and 2507 Grades.
Industry We Serve	Duplex Stainless Steel Flanges Supplied Oil & Gas Industry, Petrochemical Companies, Seashore Industries, Refinery, Petroleum Refineries, Oil Refining Industry, Beverage, Water Piping Systems, Acid & Chemical Plants, Pharmacy Industry etc..
Country	More Then 2700 CLIENT OFDuplex Stainless Steel Flanges in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrainetc....
Products	Duplex Steel 2205and 2507 Pipe
Industry We Serve	production & transportation of Oil & Gas : Duplex 2205 Stainless Steel Pipes for Industrial Use in Architecture, Building, Construction, Transportation, Chemical, Energy, Seaports, Seashore, Catering and Process Industry.
Country	More Then 1900 CLIENTSof Duplex Stainless Steel Pipes & Tubes in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain etc....
Products	Duplex Steel TubingSupplied to
Industry We Serve	Heat exchangers Manufacturers & cooling pipes Manufacturers Industry.
Country	More Then 1700 CLIENTS OFDuplex Stainless Steel Tubing in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain etc....
Products	Duplex Steel Sheet & Plate
Industry We Serve	storage tanks manufacturers, pharmaceutical or food processing Industry, pulp and paper industry (Duplex stainless steel plate USE: Duplex stainless steel plate is often used for storage tanks. High corrosion and erosion resistance is a must for storage tanks, whether the designer wants to prevent leakage during desalinization, avoid contamination in pharmaceutical or food processing, or store chips as well as black and white liquor for the pulp and paper industry.)
Country	More Then 2800 CLIENTS OFDuplex Steel Plates., We Supplied Duplex Stainless Steel Plates in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain etc....
Products	Duplex Steel 2205& 2507 Bolts, Duplex Steel 2205& 2507 Washer, Duplex Steel 2205& 2507 Screws, Duplex Steel 2205& 2507 Nuts
Industry We Serve	Duplex Steel Fasteners used in Oil & Gas Industry, Petrochemical, structural & mechanical
Country	More Then 3200 CLIENTS OFDuplex Stainless Steel Fasteners in Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, USA, Brazil, Nigeria, South Africa, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain etc....

We have exported our material to numerous countries in the world including but not limited to Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, Qatar, USA, Brazil, Nigeria, South Africa, Kuwait, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain & many other countries....