DIN931 933 Bolts

Inconel 625 Bolts are easy to weld using conventional welding processes, which is especially useful for Inconel 625 Weld Studs. This alloy is often chosen for its weldability compared to other highly alloyed nickel-based alloys. Alloy 625 resists intergranular corrosion even in the as-welded condition. Furthermore, post-weld heat treatment of the weld is not necessary to maintain corrosion resistance.

Alloy 825 bolts have good mechanical properties from low temperatures to moderately high temperatures up to about 1000¡ãF. Microstructural changes that significantly reduce ductility and impact strength occur when used at temperatures above 1000¡ãF.

Alloy 20 is an upgrade to 316 stainless steel. Since iron is its most abundant constituent, it is classified as super-austenite. Even though its nickel content is less than half, the UNS system classifies it as a nickel-based alloy. Alloy 20 is resistant to hot sulfuric acid. It is often found in chemical mixers and fertilizer manufacturing equipment. In general, it is an economical alternative to alloy C276 and other materials with a higher nickel content.

Incoloy Alloy 800 / 800H / 800HT Fasteners (Nuts and Bolts) series for extreme corrosion resistance even in sour environments. Due to the high nickel and chromium content, Incoloy 800 hex head bolts resist oxidation and carburization at high temperatures. The chemical balance allows Incoloy 800H square nuts to exhibit excellent resistance to carburizing, oxidizing and nitriding atmospheres.

Stainless Steel Duplex SAF 2205 Hex Bolts are used in machinery and construction and can be used with nuts or threaded holes. Since they can be tightened with a wrench, fully threaded hex bolts are specially designed to work more efficiently. Additionally, 2205 hex bolts are stronger than standard stainless steel, meaning they can be used for jobs that require high workloads and good corrosion resistance.

UNS S32205 Hex Bolts (also known as S31803) are made of high grade duplex 2205 stainless steel. Because this material is composed of at least 22% chromium, 6% nickel, and 3% molybdenum, it can withstand some of the harsh environmental conditions that other metals cannot, such as corrosion, cracking, erosion, pitting, and more. Stainless Duplex 2205 Hex Bolts also provide twice the mechanical strength compared to standard stainless steel.

Additionally, Duplex 2205 is the most widely used duplex grade on the market. Duplex 2205 alloy is a nitrogen-enhanced duplex stainless steel alloy. The effect of nitrogen is to significantly increase the corrosion resistance of the alloy; especially in the as-welded condition.

Hex head bolts are ideal for many types of industrial fastener applications. The six-sided design of the 2205 Hex Bolt allows the bolt to be tightened or loosened quickly and efficiently, improving overall work speed and quick turnaround. Some additional benefits associated with using UNS S32205 Hex Bolts (also known as S31803) include: Extremely strong, hot forged, ASTM A449 and SAE J429 specified, improved corrosion resistance.

Duplex 2205 bolts (EN 1.4462 ) are made of austenitic-ferritic stainless steel and are designed to provide higher strength and corrosion resistance than 300 series stainless steels. It helps users avoid stress corrosion cracking common to 316 and 317. Duplex 2205 bolts combine the stress corrosion cracking resistance and high strength of ferritic alloys with austenitic fabrication capabilities.

Duplex 2205 was tested under reverse bending stress at room temperature compared to SS316. The results show that Duplex 2205 has approximately twice the fatigue limit/yield strength.

Duplex 2205 bolts have a ductile to brittle transition at -50¡ãC and also become brittle at 300-1000¡ãC, so a temperature of -50¡ãC to 300¡ãC is recommended. Exposure to above 300¡ãC will not only cause embrittlement of 2205 bolts, but will also reduce corrosion resistance.

Offering the industry an improved stainless steel corrosion solution, Duplex 2205 Bolts have good sulfide corrosion resistance, as well as chloride pitting and crevice corrosion superior to 317L. The combination of chromium, molybdenum and nitrogen provides Duplex 2205 bolts with good chloride pitting and crevice corrosion protection, which makes them useful in marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications.

Nickel Alloy 200 fasteners are designed to meet national and international standards for the quality of raw materials, ensuring their durability and high quality. Our line of nickel alloy fasteners are manufactured from high-quality materials known for their high tensile strength and durability. We offer a wide range of Nickel alloy fasteners such as Nickel 200 Bolts, Nickel 201 Nuts, Nickel 200 Screws, Nickel 201 Washers and Nickel 200 Studs. Also known as UNS N02200 and UNS SN02201, these fasteners can be customized in thickness and size according to customer specific requirements.

C22 nickel alloy fasteners offer better overall corrosion resistance than its sister alloy Hastelloy C-276, and more specifically, it offers better protection when used in certain saturated wet chlorine environments. Additionally, its high chromium content provides C22 fasteners with better resistance to oxidative media than C276. This makes it excellent resistance to chloride-induced pitting, although in most cases C-276 fasteners are a more cost-effective option due to their availability, especially in sizes smaller than 1/ 2″ case.

Alloy 800 bolts (WNR 1.4876 bolts) resist embrittlement due to nickel-containing sigma-phase precipitation and chloride stress corrosion cracking. It has further modifications to the combined levels of aluminium and titanium (0.85-1.20%) to ensure optimum high temperature performance. These are called UNS N08800 bolts and are actually for high temperature structural applications. At the same time, the corrosion resistance of these bolts is quite high. We offer these types of alloys in all material grades, sizes and sizes.

Nickel 200 (2.4060) fasteners are made of commercially pure nickel known for its excellent performance in caustic solutions such as caustic soda (NaOH). Nickel 200 also shows good performance in acids, especially HF (anhydrous hydrofluoric acid) and hydroxides, but is attacked by common hydrochloric or sulfuric solutions.

Known as a heat-resistant alloy, Inconel 825 has excellent properties. The most interesting properties of Incoloy 825 fasteners are their high creep resistance and high mechanical strength despite prolonged exposure to heat. The importance of these attributes in particular is considered critical across multiple industries. Therefore, the use of ASTM B425 UNS N08825 bolts is often associated with industries such as pollution control equipment, oil well and gas gathering, and chemical processing.

Inconel 600 Fasteners are also sometimes referred to as Alloy 600 Fasteners or UNS N06600 Fasteners. This alloy has high heat and corrosion resistance. Inconel 600 fasteners have high tensile strength and good processability, making them ideal for the following applications: bubble columns, stills, heaters, fatty acid concentrators, trays and pulp/paper conditions. Inconel is a nickel-chromium-iron alloy that can only be strengthened by cold working. Due to its high nickel content, this alloy is highly resistant to many inorganic and organic compounds and is virtually immune to chloride ion stress/corrosion cracking.

The bolt is a nickel-iron-chromium alloy with good strength and excellent resistance to oxidation and carburization in high temperature environments. Inconel 800HT Hex Bolts are an austenitic high strength solid solution Ni-Fe-Cr alloy with controlled levels of C, Al, Ti, Si and Mg with increased (Al + Ti) content. Inconel 800HT Heavy Duty Hex Bolts are used in a variety of applications involving exposure to corrosive environments and high temperatures, such as heat treatment equipment, chemical and petrochemical processing, nuclear power plants and the pulp and paper industry.

Alloy 31 is a nitrogen-containing iron-nickel-chromium-molybdenum alloy with properties intermediate between super austenitic stainless steels and nickel-based alloys, with the presence of copper increasing its resistance to sulfuric acid. This alloy is used in the chemical and petrochemical processing industries. Alloy tubes are cold worked to high strength levels and are suitable for downhole operations in moderately corrosive deep sour gas wells.

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.

Hastelloy B2 fasteners are primarily used for excellent resistance to reducing environments such as hydrogen chloride gas, sulfuric acid, acetic acid and phosphoric acid. Like other Hastelloys, B2 fasteners can be used in the as-welded condition because they resist the formation of grain boundary carbide deposits in the weld heat-affected zone. Due to reduced ductility, B2 fasteners are not recommended for use between 1000¡ãF and 1600¡ãF.

The benefits of using 2.4360 (Alloy 400) bolts include their high strength and excellent corrosion resistance. The properties of ASTM F467 400 Monel are maintained in a wide range of acidic and alkaline environments. Alloy 400 bolts are ideal for reduced duty applications.

Monel K500 is a nickel-copper alloy that combines the excellent corrosion resistance of Monel 400 (link) with the added benefits of higher strength and hardness. Performance can be improved by adding aluminum and titanium to the nickel-copper matrix and by heating under controlled conditions to precipitate submicroscopic particles of Ni3 (Ti, Al) throughout the matrix. This is commonly referred to as age hardening or aging.

Hastelloy B3 has excellent resistance to hydrochloric acid at all concentrations and temperatures. In addition, it greatly improves structural stability compared to previous B-type alloys, reducing concerns during welding, fabrication and service.

Hastelloy B-3 is a nickel-molybdenum alloy with excellent resistance to pitting, corrosion and stress corrosion cracking and better thermal stability than alloy B-2. Hastelloy UNS N10675 fasteners are suitable for aircraft, furnace and chemical process components, honeycomb and gas turbine combustion section components.

Hastelloy C22 fasteners are a general-purpose grade composed of chromium, nickel, molybdenum and tungsten alloys. These designs are designed to increase resistance to pitting, stress corrosion cracking (SSC) and crevice corrosion cracking. It has high chromium content and good resistance to oxidizing media. The presence of molybdenum and tungsten provides good resistance to reducing media. Its nickel content provides admirable resistance to oxidizing aqueous media.

Hastelloy C276 bolts are used in heavy duty applications due to their excellent mechanical quality. This material is one of the most corrosion-resistant materials used in the world. The bolt can be used with welding without the effects of grain boundary precipitation because it has virtually no carbide precipitation during welding. Hastelloy C276 bolts can be used in acid treatment applications because the material resists most corrosive conditions, including heavy sulfur compounds and chloride ions. This quality makes it suitable for desulfurization machinery, flue gas machinery and other harsh conditions.

Hastelloy C276 Fastener is a wrought corrosion resistant alloy that resists the development of grain boundary precipitates that reduce corrosion resistance. C276 alloy fasteners have good machinability and are used for desulfurization of flue gas equipment and chemical process equipment. Hastelloy C276 bolts are commonly used to hold materials or objects together, or to position objects. A fastener that usually consists of a head on one end and a chamfer on the other. It is typically used in solution treated condition and soaked at 1121¡ãC (2050¡ãF) and then flash quenched.

Incoloy WNR 1.4876 bolts have excellent corrosion resistance and avoid failures due to intergranular corrosion. Advanced molybdenum content material concentrates vulnerability to pitting corrosion. It is used in a package consisting of a molybdenum-containing austenitic alloy, welded low carbon. In addition, it is used for welding of steels that require corrosion-resistant properties.