Steel Tubes India are the leading manufacturer of high integrity Duplex S31803 Fasteners (e.g. bolts, set screws, stud-bolts, nuts and washers), meeting clients’ exacting demands for critical applications in hostile environments. Whether for offshore (buoyancy and petrochemical), seawater, pump, valve or nuclear, the demands for an exceptional service and supply is never ending. We believe manufacturing bolting in exotic materials is an art form and it is something we have perfected at Steel Tubes India
Our Duplex S31803 Fasteners product range includes Duplex S31803 Steel Bolts, Hexagon head bolt, Hexagon head screw, Round head square neck bolt, Hexagon socket head cap screw in full thread and half thread, Hexagon wood screw, Hexagon socket button head screw, Hexagon socket button flange screw, Hexagon socket counter sunk head cap screw in full thread and half thread, square nuts, square weld nuts, hexagon weld nuts, thick nyloc nuts, hexagon flange nuts, threaded rods, dowel screws, Plain / Flat Washer, Spring Washers, Countersunk Washer,Tooth Lock Washer and many more. We provide products as per DIN, ANSI, JIS standards.
Steel Tubes India produces Duplex S31803 Fasteners in all grades of duplex, to customer specification.ALLOY 31803 is a chromium nickel molybdenum austenitic and ferritic grade. It has improved resistance to stress corossion cracking, piiting, crevice corrossion and high strengths in comparison to other stainless steel grades. It has very good oxidation resiatnce at high temperatures. However, it is prone to embrittlement at 475 Degree celcious if exposed for more than 2 hours. It is widely used in brewing , power generating equipments and wide varierty of marine and oil and gas applicants. If we do not have your Duplex S31803 Washersin stock (Inch or Metric) we can have these manufactured to your specification.
Duplex S31803 Washers Ready Stock At Steel Tubes India
Duplex S31803 Plain / Flat Washer
Duplex S31803 Spring Washers
Duplex S31803 Dome Washer
Duplex S31803 Dome Tooth Washer
Duplex S31803 Countersunk Washer
Duplex S31803 Tooth Lock Washer
Duplex S31803 Ogee Washer
Duplex S31803 Hex Washers
Duplex S31803 Split /Lock Washer
Duplex S31803 Hexagonal Washer
Duplex S31803 Square Washer
Duplex S31803 Dock Washer
Duplex S31803 Customized Washer
Duplex S31803 Fender Washer
Duplex S31803 Tab Washers
Duplex S31803 Washers Specification
Duplex Stainless Steel
M02 to M30
Duplex Stainless Steel, Super Duplex Stainless Steel.
ASTM / ASME F60 / F51/ F61 / F55 / F53
UNS S31803, S32205, S32550, S32750, S32760
Type of Fasteners:
Bolts : Bolts stud bolts, hex head bolts, socket hexagon head screw anchor bolts, u-bolts, J bolts, mushroom head square neck bolts, t- head bolts, wing screw, eye bolt, eye bolt, foundation bolts and structural bolts
Washer : Plain washer , plain big & small OD washer , spring lock washer , spring washer heavy duty , tooth washer , star washer , tab washer with one & two tab
Screw : Pan head slotted screws, cheese head slotted screws, countersunk head slotted screws, countersunk raised head slotted screws, pan phillipse head screw, countersunk Phillipse raised head screws, slotted cheese trim head machine screws, socket head allen cap screws, allen countersunk socket head cap screws, socket head shoulder screws, socket head cap screw low head, hexagon socket set screw with flat point, hexagon socket set screws with cone point, hexagon socket set screw with dog point, hexagon socket set screws with dog point, hexagon socket set screws with cup point, imprial socket cap screws.
Other : Threaded rod, as per drawing and customers spec. coating, hot dipped galvanizing, phosphate, Teflon, xylon, zinc, cadmium.
We were dealing with Fasteners Supplier in china for 15 years.in June 2012 we ordered them Inconel 625 Bolts when we received materials it was pathetic after that we tried STI & placed them a trial order in tight time constraints,we received high-grade Inconel 625 bolts before expected time since then We have never been disappointed with any product supplied by STI. we have We recommend them to many of our associates in South Africa. Keep it up!!!
Brain Mbazima Purchase Manager PEBH South Africa
Associated with Steel tubes for over 10 years. During this time they Supplied various types of steel fasteners to us even sometime in very short notice, but this time we were required custom Hex bolts in Hastelloy c276 material in maximum 10 day here in Germany, i knew that it was next to impossibe, but i appriciate that they made it possible & deliverd exactly as per our drawing in 8 days, they are superb as a hastelloy hex bolts Manufacturers, They have experienced & Good team as well excellent logistic access.
Dr. Antonella M-Pochtler Cheif Consultant Btc Speciality Chemical Distribution Gmb
Procuring PTFE coated Stainlesss Steel fasteners in high quality grades like SS 304,316L,317L & ss 904L and must say they never compromised with quality in last 8 years,special thanks to team they have knowledgeable about their work. Invoicing is always prompt and detailed. Quotes are received in minimum time. It is always great to work with Steel Tubes India for such a long time and know that loyalty always counts”
Paul Jackson Production Head Ambic Equipment Limited
We Export To
In Which Steel Fasteners Steel Tubes India Is Specialist Manufacturer ?