DIN931 933 Bolts

Hastelloy C2000 Tubes are used in a broad range of industries including petrochemical processing, chemical processing equipment manufacturing, oil refineries and power plants.

Hastelloy C2000 is available in a variety of sizes and thicknesses, this type of nickel-chromium-molybdenum alloy is renowned for its superior strength and corrosion resistance.

AL6XN is a superaustenitic stainless steel with outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking. AL6XN is a 6 moly alloy that was developed for and is used in highly aggressive environments. It has high nickel (24%), molybdenum (6.3%), nitrogen and chromium contents that give it excellent resistance to chloride stress corrosion cracking, chloride pitting, and exceptional general corrosion resistance. AL6XN is primarily used for its improved pitting and crevice corrosion resistance in chlorides. It is a formable and weldable stainless steel.

UNS N08367 also commonly referred to as alloy AL6XN is a low carbon, high purity, nitrogen-bearing “super-austenitic” nickel-molybdenum alloy with excellent resistance to chloride pitting and crevice corrosion.

SMO 254 Pipes can withstand high mechanical stress and Alloy 254 SMO Pipe high pressure work in high temperatures and corrosive environments.

This provides greatly enhanced resistance to sulfuric acid. It also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen.

It is able to withstand a wide range of oxidizing and non-oxidizing chemicals, and exhibits outstanding resistance to pitting and crevice attack in the presence of chlorides and other halides.

It demonstrates good resistance to neutral and reducing environments. This alloy creates a tenacious oxide, protective film that does not spall off, but it retains superior oxidation resistance at soaring temperatures.

It is widely used in offshore oil and gas exploration/production and in heat exchangers in petrochemical/chemical processing.

Titanium’s density is about 60% that of stainless steel and nickel alloys, this weight saving makes it a popular choice in applications where this is critical such as aerospace.

Inconel 600 seamless tubes of standard UNS N06600 and ASTM B167 are the ones manufactured to sustain excessively high pressure and come with great warranty.

SCH40 Monel 400 Pipe is designated as Werkstoff Number 2.4360 and UNS N04400. Alloy 400 Pipe also known as Monel Alloy 400 Pipe, Monel 400 Pipe & Nickel Alloy 400 Pipe.

The pipes of seamless configurations have higher load-bearing capacity and strength over other grades.

Higher chromium, molybdenum and nitrogen content results in a Pitting Resistance Equivalent Number (PREN) > 40, providing superior pitting and crevice corrosion capabilities to austenitic and duplex stainless steels in virtually all corrosive media, and critical pitting temperature Above 50¡ãC .

Hastelloy Alloys Directory
The Corrosion Resistant HASTELLOY alloys are widely used by the chemical processing industries. The need for reliable performance leads to their acceptance and growth in the areas of energy, health and environmental, oil and gas, pharmaceutical and flue gas desulfurization industries.

Incoloy 800H Flange We have a strong reputation in the industry for producing high-quality flanges of different types that would suit the requirements of our clients. We manufacture Incoloy 800 Flanges which are reliable and high in quality. We use premium resources and advanced machinery for producing ASTM B564 UNS N08800 Incoloy 800 Flanges.

Alloy 800 Weld Neck Flanges We have a strong reputation in the industry for producing high-quality flanges of different types that would suit the requirements of our clients. We manufacture Incoloy 800 Flanges which are reliable and high in quality. We use premium resources and advanced machinery for producing ASTM B564 UNS N08800 Incoloy 800 Flanges.

Nickel 200 flanges The Nickel 200 Flanges are durable, dimensionally stable, and have a fine finish. Moreover, the ASTM B564 UNS N02200 Blind Flanges are resistant to corrosion in neutral and oxidizing environments, making them perfect for use in food handling equipment.

Another important feature of the N08800 Incoloy Alloy 800 Cold Rolled Plate is its excellent resistance to chlorine ion stress related corrosion cracking, to which the metal, like its other Inconel counterparts is virtually immune to.
Type Plate, Sheet,Strip Coil
Length 0~12m or as per your requirements
Width 0~2500mm or as per your requirements
Thickness 0.3~1200mm or as per your requirements

Inconel 600 is a nickel-chromium-iron alloy with excellent corrosion resistance, oxidation resistance and high strength at elevated temperatures. Due to its high nickel content, Inconel 600 is extremely resistant to chloride ion stress corrosion cracking. Age hardening is not required as Inconel 600 is hardened and strengthened by cold work only. The Inconel 600 can operate in temperatures as low as 700¡ãF (370¡ãC).
Standard SUS, AISI, DIN
Diameter 5~500mm
Length ¨Q12M or As Per Clients’ Requirements

Round bars are cold drawn and annealed, available in stock lengths or cut to size. Alloy round bars provide strength and corrosion resistance in a variety of environments and can be used in the frame, machine part manufacturing, food service and medical device industries.
Standard SUS, AISI, DIN
Diameter 5~500mm
Length ¨Q12M or As Per Clients’ Requirements

Many businesses prefer the fact that Inconel 600 is a very versatile alloy. Therefore the alloy is used in several key industries in various forms including the popular Inconel 600 Pipe. The construction of these pipes could be either welded or they could be seamless. There are benefits to using both. For e.g. the preference of an Inconel 600 Welded Pipe, is in applications where its economics plays a very important role. Though cheaper than the seamless constructed one, these pipes have a longitudinal seam, which could become susceptible to intergranular corrosion – if they are improperly processed. In a scenario, where the buyer requires the highest form of corrosion resistance and the ability to withstand a higher pressure, Inconel 600 Seamless Pipe is the best option.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.20

For industrial purposes, in pipeline systems, we usually need to change the direction of transmission; regulate the flow of fluids (oil and gas, water, mud); open or close pipelines, etc. Therefore, to accomplish these activities, steel pipe fittings will be applied.

Nickel based 800 Incoloy Hexagonal Pipe is known to have a good resistance to corrosion. Specifically speaking, the Incoloy 800 Pipe offers sufficient resistance against both carburization as well as oxidation corrosion.

Carbon steel flange is a kind of rim formed at the end of the pipe when it is fixed on the pipe. It is used to seal the ends of pipes, valves or other connections. It has high tensile strength and is available with convex surfaces and supports for easy installation. It is an iron-carbon alloy containing up to 2.1 wt.% carbon. Carbon steel does not have minimum specified levels of other alloying elements, but it usually contains manganese.

UNS S32205 Duplex Steel ASME SA182 Butt Weld Flanges are suitable for seawater and power generation equipment because their smooth surfaces can withstand temperatures up to 600¡ãF, while also having excellent flow characteristics.

Hastelloy C-276 is a Ni Mo CR superalloy added with tungsten, which has excellent corrosion resistance in a wide range of harsh environments. The high content of Ni and Mo makes the Ni steel alloy particularly resistant to pitting and crevice corrosion in reducing environment, while CR transfers the performance of anti-oxidation medium.

Although molybdenum is a good element, excessive use of it may reduce the creep ductility of Gr F11 plate flanges. Graphitization and decomposition of iron carbide may occur when the temperature exceeds 500 degrees Celsius. Chromium has been added to SA A182 F11 alloy steel CL.2 forged pipe flanges to prevent creep ductility reduction and graphitization. In addition, the added chromium also provides oxidation resistance.

Duplex steel flanges are widely used in the used engineering, machinery and automotive industries. Duplex Steel S31803 Lap Flanges are ideal for applications requiring better corrosion resistance than Type 316 and good high temperature strength. We have Duplex Steel S31803 / S32205 Flanges in stock. Duplex steel flanges are commonly used in chemical, petrochemical, and power industries.

Nickel 200 is a solid solution strengthened metal. Nickel 200 Bar Stock contains 99.6% wrought nickel by weight and is considered commercially pure nickel. DIN 2.4066 Bar has good mechanical and physical properties. For example, ASTM B160 N02200 has excellent resistance to many corrosive compounds as well as corrosive environments. Meanwhile, Nickel 200 is a solid solution strengthened wrought alloy that can be designed as round bars and rods. These two components are used interchangeably and can be distinguished from certain key functions.

Nickel-copper-based alloy 400 Monel 2.4360 cold drawn rod is virtually immune to chloride stress-related corrosion cracking when exposed to corrosive media in typical environments. Monel 400 is a copper and nickel based alloy that is popular today due to its high performance. The alloy has excellent acid and alkali resistance. In addition, it has good tensile strength, ductility, excellent thermal conductivity, and can be hardened by cold work. Additionally, it can be used in applications with temperatures ranging from minus to 538 degrees Celsius.

Nickel Alloy 400 and Monel 400, also known as UNS N04400, is a ductile nickel-copper-based alloy consisting primarily of two-thirds nickel and one-third copper. Nickel Alloy 400 is known for its resistance to a variety of corrosive conditions, including alkalis (or acids), salt water, hydrofluoric acid, and sulfuric acid. Since Monel 400 or Alloy 400 is a cold worked metal, this alloy has high hardness, stiffness and strength. By cold working ASTM B164 UNS N04400 bar stock, the alloy is subjected to higher levels of mechanical stress, which in turn causes changes in the alloy’s microstructure.

Inconel 600 round bar is a nickel-based alloy with benign carburization and excellent corrosion resistance at high temperatures. Inconel 600 round bars are effective against drying Cl2 and many other different gases at mild and high temperatures. Alloy 600 bar is a nickel-chromium alloy with good oxidation resistance and resistance to chloride pressure decomposition cracking, high cleanliness water corrosion and acid oxidation at elevated temperatures.

Nilo / Alloy K W.Nr.: 1.3981
UNS: K94610 ASTM F15
Fixed-expansion glass-encapsulated iron-nickel-cobalt alloys, Kovar alloys, have a linear thermal expansion coefficient similar to that of hard glass within a certain temperature range
For mating sealing with hard glass

Nilo Alloy 36, W.Nr 1.3912, Invar 36® is a nickel-iron, low controlled expansion alloy that contains 36% nickel and possesses a rate of thermal expansion approximately one-tenth that of carbon steel.
Invar 36 Specifications: UNS K93600, W.Nr 1.3912

Common Trade Names: Nickel Alloy 36, Invar 36®, Nilo 6®, Pernifer 6®
Invar 36® is a nickel-iron, low expansion alloy that contains 36% nickel, Invar 36 has a low coefficient of expansion from cryogenic temperatures to about +500°F (260°C).
Invar 36 Tube OD:0.2-6mm, WT: 0.02-2mm

Flange is the parts which connects two pipe ends, flange connection is defined by the flange, gasket and bolt three are connected as a group of combined sealing structure of the detachable connection. The gasket is added between the two flanges and then fastened by bolts. Different pressure flange, thickness is different, and the bolts they use are different, when pump and valve connect with pipe, the parts of the equipment are also made of the corresponding flange shape, also known as flange connection, usually closured bolted connection parts are also known as flanges, such as the connection of ventilation pipe, this kind of parts can be called “flange type part”, but this connection is only part of a device, such as the connection between flange and water pump, it’s not inapposite to call water pump as flange type parts,but relative small valve,it can be called as flange type parts .

Duplex 2507 is a super duplex stainless steel containing 25% chromium, 4% molybdenum and 7% nickel. This alloy is designed for applications requiring excellent strength and corrosion resistance.

2.4819 has very good resistance to pitting, crevice corrosion and stress corrosion cracking, C276 is worth mentioning for its excellent resistance to aggressive media under oxidizing and reducing conditions.

Alloy C-276 is one of the most versatile corrosion-resistant alloys available today.

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.

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.

SS 321 hex bolts have a minimum tensile strength of 621MPa and a minimum yield strength of 276MPa. The material also has a high hardness of 80 HBW. Due to its high melting point, AISI 321 Nuts and Bolts are used in high temperature and high pressure applications. Grade 321 studs have oxidation resistance up to 1600 degrees Fahrenheit, are very stable to weld heat-affected zone (HAZ) interparticle corrosion, and are also resistant to polythionate stress corrosion cracking.

Stainless steel 347 hex head bolts easily lose their shell electrons, resulting in a free-flowing cloud of electrons in their otherwise solid arrangement. Meanwhile, 347 stainless steel fasteners are used in corrosive environments where temperatures may cycle in excess of 800o F (425o C). Refinery applications are common. Other uses for 347 stainless steel are thermal sensors and thermocouples.

321 Stainless Steel (UNS S32100/ASTM A193 B8T) is a very close relative. While 347 stainless steel is stabilized by the addition of niobium and tantalum to resist intergranular corrosion, 321 is stabilized by the addition of titanium. By adding niobium and tantalum, this material prevents the formation of chromium carbides. Since these elements have a stronger affinity for carbon than chromium, niobium-tantalum carbide precipitates within the grains rather than forming at the grain boundaries.

904L bolts are manufactured to DIN, ISO, ASME, ANSI, UNI, BS and BIS dimensional standards and tolerances. We manufacture precision bolts and other fasteners of SS 904L using high quality raw materials. High-alloy stainless steel grade 904L is an austenitic alloy. One of the highlights of using this alloy is the excellent resistance to SCC or stress-related corrosion cracking of stainless steel 904L fasteners.

In addition to nickel, the alloy also contains a large amount of copper. Not only does copper make the UNS S08904 screw resistant to seawater and salt water, it also improves the alloy’s sulphur resistance. The addition of copper content to stainless steel 904L hex bolts provides higher corrosion resistance than conservative chromium-nickel alloys, especially phosphoric, acetic and sulfuric acids.

In mild or corrosive environments, 904l stainless steel bolts are resistant to highly corrosive reducing agents. Additional features of 904L stainless steel bolts include excellent toughness, non-magnetic properties, formability and weldability. At the same time, the stainless steel Din 1.4539 bolt is an unsteady austenitic alloy with low carbon content, which is resistant to SCC and crevice corrosion. Austenitic construction also offers stainless steel UNS NO8904 bolts for excellent durability, even down to low temperatures.

ASTM A453 covers specifications for high temperature bolted joints with coefficients of expansion comparable to austenitic stainless steels. We manufacture A453 Grade 660 Grade D stud bolts, hex bolts, expansion bolts, threaded rods and more for special engineering applications. Meanwhile, ASTM A453 Grade 660 Grade D specification provides the yield strength, i.e. 95 ksi 655 MPa for high temperature service, respectively, for bolted components such as studs, screws, nuts, hex bolts, and pressure vessel and valve flanges Various other fasteners.

AL-6XN is an alloy that is an austenitic stainless steel. It is often referred to as a super austenitic stainless steel because it has several useful properties. One of the main benefits of using al6xn bolts is that it can be used in high temperatures. Meanwhile, AL6XN is a super austenitic alloy, and the most abundant element is iron. It is the most popular of the 6% molybdenum alloys. Common uses are in the food processing, pharmaceutical and biotechnology industries. It exhibits superior corrosion resistance compared to duplex alloys in most environments. Due to the lower nickel content, AL6XN fasteners are generally more economical than high nickel alloy fasteners.

Stainless steel 316Ti hex head bolts are typically used in areas that can withstand higher temperatures than Type 304, and their low carbon makes them resistant to carbon precipitation. However, like many stainless steels, stainless steel 316Ti hex head bolts are susceptible to warm chlorine environments and can develop pits and cracks.

ASTM A276 Type 316Ti is a material grade specification for 316Ti stainless steel cold-worked or hot-worked bar in round, square, hexagonal, and other hot-rolled extruded shapes. Alloy 316Ti studs do show surface corrosion, usually as a brown staining, which is particularly relevant for cracks and rough surface finish. The low thermal conductivity of austenitic alloys such as 316Ti studs causes heat to concentrate on the cutting edge, which means that coolants and lubricants are required and must be used in large quantities.

Stainless Steel 317L Hex Bolts have many excellent properties that provide durability, corrosion resistance, wear resistance, high tensile strength and more. Our diligent team of experts are well trained and skilled to manufacture stainless steel 317L hex bolts according to customer requirements. Grade 317 stainless steel fasteners are an improved version of 316 stainless steel. These 317 stainless steel bolts have higher tensile strength and improved corrosion resistance compared to 316 grade stainless steel.

321 Stainless Steel Hex Nuts are used in different application types. 321 material is a stable austenitic stainless steel. Meanwhile, stainless steel UNS S32100 hex bolts are a moderated austenitic alloy, the same as alloy 304, but with at least 5 times more titanium than carbon. The material contains 17% chromium, 9% nickel and titanium and is stable with carbon, iron, manganese, nitrogen, phosphorus, sulfur and silicon.

Grade 309 bolts do not respond to heat treatment, and cold working results in an increase in hardness and strength. Type 309 bolts cannot be hardened by heat treatment, where annealing is performed at 1900¡ãF – 2050¡ãF (1038¡ãC – 1121¡ãC) followed by water quenching or rapid air cooling. Heating this AISI 309 bolt between 1050¡ãC and 1150¡ãC and water quenching ensures that all carbides are dissolved.

The properties of stainless steel 310 hex head bolts require the addition of alloying elements other than carbon that produce properties that are not achievable with ordinary carbon steel. ASTM A276 Type 310S is a material grade specification for 310S stainless steel cold-worked or hot-worked bar in round, square, hexagonal, and other hot-rolled extruded shapes.

A276 specification 310S bar stock to manufacture stainless steel 310S bolts, nuts, screws, studs, threaded rods, other fasteners and bar stock assemblies for general engineering purposes. Each of the approximately 20 elements of a stainless steel 310S hex bolt has a significant effect on the microstructure as well as the temperature, hold time and cooling rate of the microstructure change.

The ASTM A276 specification covers the chemical composition, mechanical properties, heat treatment, and other supplemental requirements for 310S stainless steel round, square, hexagonal, and other extruded profiles. Stainless Steel 310 Hex Bolts change the transition point between ferrite and austenite, alter solution and diffusion rates, and compete with other elements to form intermetallic compounds such as carbides and nitrides.

Stainless steel 310 hex head bolts (like on oil rigs), not only prolong the life of the cabinet, but also be safer around. It has some good properties such as corrosion resistance, robust construction, dimensional accuracy, etc.

The low carbon content of stainless steel 304 hex bolts minimizes chromium carbide precipitation from welding and its susceptibility to intergranular corrosion. SS 304 Nuts and Bolts are available with up to 515MPa minimum tensile strength and 40% elongation with a maximum hardness of 201HB. Steel bolts are high strength steel alloys and are the strongest commercial quality bolts. High mechanical properties come from the chemical composition of carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel and nitrogen.

316 stainless steel bolts are made of corrosion-resistant and strong austenitic stainless steel. The material is composed of chromium, nickel, molybdenum and other elements. This provides a high yield strength of 205MPa and a minimum tensile strength of up to 515MPa for 316 stainless steel bolts and nuts.

The material is high temperature resistant and used in most marine environment applications. Molybdenum content makes 316 stainless steel hex bolts resistant to chloride ion corrosion cracking.