Steel Fasteners

S32760 Heavy hex nuts are slightly larger and thicker than standard (finished) hex nuts. There are numerous grades and the heavy pattern is typically used for large diameter and high strength bolts.

Super Duplex 2507 Lock Washers has excellent corrosion resistance in marine environments.Lock washers are designed to be tightened to a required torque beneath an ordinary fastener. They exert a spring tension that keeps the fastener from vibrating loose. They are often attached to the nut side of the fastener.

The material for UNS S32760 Stud Bolts is about 10% lighter when compared to grade 316 stainless steel. The Stud Bolt S32760 demonstrates high performance at cryogenic temperature settings as well. Which means that the ASTM A1082 UNS S32760 has good sub-zero notch ductility properties down to a temperature of minus 50¡ãC.

Supler Duplex Steel UNS S32760 stud bolt has a higher yield strength and lower ductility than the austenitic steels so fabricators may find that higher forming forces, increased radius of bending, and increased allowance for spring-back are necessary.

Super Duplex Steel UNS S32760 are dual phase austenitic-ferritic duplex fasteners manufactured from alloy containing chromium, nickel and molybdenum with restricted carbon content and minimum PREN42. Zeron washers have high strength, resistance to pitting, stress corrosion cracking, erosion and corrosion fatigue, crevice corrosion resistance.

Super Duplex Stainless Steel Zeron 100 Washers, which is alloyed steel aimed for the usage in hostile atmospheres. Super Duplex Zeron 100 Lock Washers provides these attributes in sea water service and as well in progression pipe work functions.

Zeron 100?contains 25% chromium and 7% nickel and 3.6% molybdenum along with copper and tungsten additions. Zeron 100 has a 50¨C50 austenitic¨Cferritic structure. It also has greater resistance to chloride pitting, crevice corrosion and stress corrosion cracking than exhibited by the standard 300 series stainless steels.

Zeron 100 is highly resistant to corrosion in a wide range of organic and inorganic acids. The copper content gives excellent resistance to corrosion in many oxidising acids. This alloy is also highly resistant to strong alkalis.

Zeron 100 Threaded Rod are available in hot forged,cold forged and bar stock machined conditions depending upon the order quantity.SA 182 F55 is a forging grade of Alloy 32760 or UNS 32760 which is highly resistant to crevice corrosion and pitting alloy for variety of corrsives. It is 22% chromium duplex stainless steel.

ASTM A479 Super Duplex UNS S32750 Fasteners is a mixed microstructure of austenite and ferrite (50/50) which has improved strength over ferritic and austenitic steel grades.

UNS S32750 Bolts are used for the assembly of two unthreaded components, with the assistance of a nut. UNS S32750 Bolts are known to have superior properties such as high tensile and yield strength.

Heat treatment plays a very important role in the evolution of the microstructure during hot forging of Nimonic 80a as it has a large effect on both grain growth and the dissolution/precipitation of precipitates/carbides.

Nimonic bolts and nuts are ideal for use in aircraft parts and custom designed gas turbine components, from turbine blade mounting to exhaust nozzles on jet engines, Nimonic fasteners are exposed to very high levels of pressure and heat.

Similar to Nimonic 75 alloy with good corrosion and oxidation resistance. Creep rupture and tensile properties are high at 815¡ãC (1500¡ãF). It can be hot worked in the temperature range of 1050-1200¡ãC.

Duplex steel alloys have the properties of austenitic and ferritic stainless steels. This is because they have nearly equal proportions of dual microstructural phases (austenite and ferrite) in the annealed condition.

The ductility and corrosion resistance of duplex steel fasteners are reminiscent of their austenitic microstructure. On the other hand, the toughness and hardness of these fasteners are inherited from the ferritic region.

The advantage of the dual-phase structure is that it combines the advantages of ferritic alloys (resistance to stress corrosion cracking and high strength) with the advantages of austenitic alloys (ease of manufacture and corrosion resistance).

UNS S31803 Bolted Fasteners are used in marine, agricultural, chemical, construction, shipping, aviation, nuclear and industrial equipment.

Duplex steel UNS S32205 fasteners are used in the pulp and paper industry such as digesters, bleach plants and stock handling systems. Also known as WNR 1.4462 fasteners, they are developed and designed in our infrastructure to international quality standards to the highest quality standards.

Types 304 and 316 are very common grades of stainless steel and refer to only one type of stainless steel. If you were to look for Type 304 or 316 stainless steel bolts in the ASTM Handbook of Fastener Standards, you won’t find them. This is because they are steel grades and not fastener specifications, but engineers will specify them and contractors will require them.

Stainless steel fasteners are particularly popular in the automotive industry, where stainless steel screws are involved in the construction of automotive structural components.

Stainless steel alloys are iron-based metals containing at least 10% chromium and other metals that provide additional corrosion and heat resistance. They do not require protective coatings and are able to perform well in a wide range of conditions and temperatures.

Nimonic 80a Bolt is a low creep superalloy fastener made from an alloy containing over 50% nickel, 20% chromium, and additions of titanium and aluminum.

Nimonic 80 a (Alloy 80A) is one of the most popular superalloys specified for gas turbines. Nimonic 80A fasteners are often specified because of their ability to withstand very high temperatures.

Nimonic 80A is a precipitation hardenable nickel-chromium alloy. It has been largely replaced by Nimonic 90 and Inconel X-750, but it is still specified for nuclear applications due to its low cobalt content.

Alloy 80A has good corrosion and oxidation resistance and high tensile and creep rupture properties at temperatures up to 815oC (1500oF). Microstructure evolution of Ni-based superalloy Nimonic 80a during hot forging. The applicability of this alloy for hot forging under non-isothermal conditions in a screw press is discussed from the aspects of deformation inhomogeneity, flow localization and shear band formation.

The fitting of the ASTM A105 grade are produced in seamless forged carbon steel specification. ASTM A105 Fittings are designed with a chemical content of nickel, chromium, molybdenum, copper, and vanadium. These fitting help in connecting different piping grades in the oil and gas industry.

Hastelloy fasteners can be used in applications involving a wide range of media, including reducing acids and oxidizing agents. As the most versatile alloy c276 fastener, it is most commonly used for bolting of all Hastelloy grade fasteners.

The AISI 904L Stainless Steel Hex Nuts come with low carbon content, as low as 0.02%, which makes them resistant to sensitization by welding. In other words, the UNS S08904 Threaded Rod and other equipment of the same steel grade are resistant to intergranular corrosion.

ASTM A479 Duplex Stainless Steel 1.4462 Punched Washers has resistance to SCC that is of prominence in a lot of applications counting hot water tanks, brewing tanks, desalination plant and process plant. Accordingly, ASTM A479 Duplex Stainless Steel UNS S31803 Lock Washers shows properties of both ferritic and austenitic alloys. Microstructures of ASME SA 479 Duplex Steel UNS S32205 Flat Washers include a combination of ferrite and austenite stages. ASTM A479 Duplex Steel UNS S31803 Washershas outstanding general corrosion resistance in a widespread range of corrosive chemicals containing industrial and seawater acids.