bolt and nut

Grade 316 is the standard molybdenum-containing grade, second only to 304 in importance in austenitic stainless steels. Compared to 304, molybdenum imparts better overall corrosion resistance to 316, especially higher resistance to pitting and crevice corrosion in chloride environments.

Some of the advantages of using super duplex fasteners include its physical and excellent mechanical properties such as high yield strength, excellent tensile strength, high impact strength and excellent corrosion resistance.

Since these are heavy duty tension nuts, they are used in high vibration and high stress applications such as aircraft engine parts and automotive engine parts. ASTM A194 Class 2h material consists of all classes of carbon, manganese, phosphorus, sulfur and silicon.

Hastelloy X Bolts have been widely used in combustion zone components of turbine engines such as transition ducts, combustion chambers, booms and flame holders, as well as afterburners, exhaust pipes and cabin heaters. This alloy is recommended for industrial furnace applications due to its unusual resistance to oxidation, reduction and neutral atmosphere.

ASTM A479 Duplex Stainless Steel 1.4462 Punched Gaskets are SCC resistant which is prominent in many applications such as hot water tanks, brewing tanks, desalination plants and processing plants. Therefore, ASTM A479 Duplex Stainless Steel UNS S31803 Lock Washers exhibit the properties of ferritic and austenitic alloys.

254 SMO is a high alloy austenitic stainless steel developed for use in seawater and other corrosive chlorine-containing media. The steel has the following properties: excellent resistance to pitting and crevice corrosion, high resistance to general corrosion and high resistance to stress corrosion cracking. 254 SMo / EN 1.4547 / UNS S31254 / 6Mo are generally used in pumps, valves, chokes, pipes/flanges and washers and have a high resistance to general corrosion.

Inconel fasteners, such as Inconel 600, 601, 625, 686, 718, 725 and X750 fasteners, are a family of nickel-chromium-molybdenum alloys for high strength and good corrosion resistance at elevated temperatures.

Alloy 718 fasteners are a major hardware element almost everywhere, whether it’s home appliances, machinery, automobiles, buildings, infrastructure, or any other item that needs to be assembled, there will definitely be fasteners to hold them all together.

Nickel Alloy 718 Nuts are also used for overheating power reasons at room or superheated temperatures for first-class corrosion resistance including resistance to pitting and crevice corrosion, in addition to polythionate strain corrosion cracking.

2507 (UNS S32750) is a super duplex stainless steel designed for applications which require exceptional strength and corrosion resistance. 2507 is a 25% chromium, 4% molybdenum, and 7% nickel alloy resulting in excellent resistance to chloride pitting and crevice corrosion attack.

ASTM A193 B7 bolts are manufactured to meet numerous specifications and material design properties. More specifically, B7 alloy steel is a high temperature grade of A-193. B7 steel is also a chromium molybdenum steel with a minimum tensile strength of 125ksi.

Inconel 625 combines heat resistance, corrosion resistance and strength. Inconel 625 fasteners are used in environments ranging from low temperatures to 1800o F (1000o C). Antioxidant is the main feature. Like alloy C276, Inconel 625 is a nickel-chromium-molybdenum alloy. Adding niobium results in a stronger material. Common applications are marine environment and pollution control equipment.

Stainless steel washers are more corrosion resistant than steel washers and are almost as strong. 18 – 8 and 17 – 7 PH stainless steel gaskets can be used in wet, wet and washdown environments, but will corrode if exposed to salt water or chemicals.

Alloy 600 is non-magnetic, has excellent mechanical properties and a combination of high strength and good workability and is readily weldable.

Inconel Alloy 718 is a high-strength, corrosion-resistant nickel-chromium material that can be used in temperatures from -423¡ã to 1300¡ãF. Alloy 718 for the petroleum industry is heat treated to a hardness not exceeding 40HRC, the maximum value allowed by NACE MR-01-75 to prevent stress corrosion cracking.

Monel K500 nuts will retain their strength to 1200¡ãF and even retain their ductility as low as -400¡ãF.

Some of the characteristics of Alloy 31 are: excellent resistance to corrosion and erosion in phosphoric acid media, excellent resistance to general and localized corrosion of oxychlorine bleaching equipment in paper production and excellent resistance to reducing and oxidizing media as well as boiling Excellent resistance to 67% nitric acid.

Inconel 718 is a molybdenum, chromium and nickel based alloy developed to resist a wide range of severely corrosive atmospheres, crevice corrosion and pitting corrosion.

AISI 904L washers are thin flat ring-type assemblies that are bolted between a bolt and a nut to evenly distribute the load on threaded fasteners. Stainless steel 904L washer has excellent resistance to general corrosion, pitting and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric and nitric acids. SS 904L washer also contains niobium for stabilization against sensitization and resulting intergranular corrosion, a transformation that is not complete until temperatures drop to 90 degrees Fahrenheit.

Due to the alloy’s good corrosion resistance, Inconel 718 Hex Head Bolts have been used in food processing equipment, caustic solutions, and general corrosion resistant parts and structures.

Hastelloy B3 fasteners offer the same excellent resistance to hydrochloric acid and other strong reducing chemicals as other B alloys, including B2, but with significantly enhanced thermal stability and easier fabrication. In addition, B3 fasteners are highly resistant to attack from cut lines and heat affected zones. Like B2 alloys, B3 fasteners are not recommended for use in the presence of iron or copper salts that can cause rapid corrosion failure.

These stainless steel ASTM A453 Grade 660 bolts can be used up to 700¡ãC. This alloy achieves high tensile strength through a high degree of homogeneity. ASTM A286 bolts have an impressive minimum yield strength of 105,000 psi. Because SA 453 660 grade material retains its high strength even at high temperatures, these fasteners and bolts are commonly used in high temperature environments such as jet engines, turbocharger components, and gas turbines.

Grade B7 is a heat treated chromium molybdenum low alloy steel with a minimum tensile strength requirement of 125 ksi (860 Mpa), a yield strength of 105 ksi (720 Mpa) and a maximum hardness of 35HRC. Boltport produces B7 headed and headless bolts from alloy steel AISI 4140 bar stock or forgings. A193 Grade B7 is the most commonly used bolting size, plus A194 Grade 2H nuts are used for bolting carbon steel pipe. A193 B7 bolts are available in metric sizes from M6 to M180 and imperial sizes from 1/4 to 7 inches in diameter.

Another feature of HASTELLOY-X fasteners is their excellent forming and welding characteristics. It can be forged and can be cold worked due to its good ductility. Common applications for Hastelloy x include use in aircraft furnaces and chemical process components.

Incoloy 825 hex nuts are known for their tight tolerances and precise dimensions. Incoloy 825 Heavy Duty Hex Nuts offer excellent resistance to localized corrosion such as reducing and oxidizing acids, stress corrosion cracking, and pitting and crevice corrosion. These Incoloy 825 nuts have good mechanical properties from low to moderately high temperatures. However, exposure of these alloy 825 nuts to temperatures above 1000¡ãF results in microstructural changes that significantly reduce ductility and impact strength.

All fasteners are sourced from reputable suppliers, you can rest assured of the quality and price of all stainless steel fasteners, we also offer a range of corrosion resistant stainless steel fasteners.

Stainless Steel Hex Nuts are made of 18-8/304 stainless steel for joining metal and wood components. They are also used with stainless steel bolts, screws, studs, threaded rods and any other stainless steel fasteners with machine threads. Stainless steel hex nuts meet ASME B18.2.2-2015 and ASME B1.1-2003 standards.

Inconel ? 600 is a member of the Inconel family of superalloys. A standard engineering material, this versatile nickel-chromium alloy has high corrosion and heat resistance.

Inconel 718 Hex Nuts are also used in high temperature applications such as steam generators, gas turbines, rocket engines, spacecraft, pumps, tools and nuclear pressurized water reactors. Inconel 718 hex bolts are nearly twice as strong as Inconel 625 fasteners.

Alloy C-276 prevents the formation of grain boundary precipitates in the weld heat affected zone, making it useful in most welding conditions for chemical processes.