Alloy A320 L7 L7M Washers used for bolting pressure vessels

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

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

The material can be heat treated to anneal and normalize in air, or quench and temper in polymer or oil. Alloy 4130 has a lower carbon content of 0.28% – 0.33% and slightly higher amounts of other elements. And the material is easy to process. 4140 low alloy steel has a range of 2. 375″ to 12.750″ OD with wall thicknesses ranging from 0.375″ to 1.5″. Alloy 4145 has a slightly higher carbon content than 4140 and 4130 types of pipes.
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 B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P139

Alloy steel hollow bars offer excellent corrosion resistance and dimensional accuracy with tight tolerances.

Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. The difference between the two is disputed. Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0%.[1][2] Most commonly, the phrase “alloy steel” refers to low-alloy steels.

With an industry-leading inventory of chrome moly alloy from leading manufacturers combined with a diverse set of secondary service capabilities, our team can supply flanges that will meet or exceed your critical project/plant specifications.

HastelloyC-276 (Hastelloy) is a tungsten-nickel-chromium-molybdenum alloy with extremely low silicon-carbon content and is considered to be an all-around corrosion-resistant aluminum alloy. The key moisture-resistant chlorine, various air-oxidizing fluorides, isopropyl titanate solutions, hydrochloric acid and air-oxidizing salts, have good corrosion resistance in ultra-low temperature and standing temperature sulfuric acid. Therefore, in the past 30 years, it has been widely used in extremely corrosive natural environments such as chemical plants, petrochemicals, flue gas desulfurization, pulp and paper industry, and environmental protection.

Corrosion resistance

The aluminum alloy has the following characteristics: 1. It has good corrosion resistance to most corrosive substances under the two conditions of air oxidation and repair. ¢ÚIt has good resistance to pitting corrosion, void corrosion and intergranular corrosion. The higher content of Mo and Cr makes the aluminum alloy resistant to corrosion by chloride ion content, and the W element further improves the corrosion resistance. At the same time, Hastelloy C-276 aluminum alloy is one of the only types of raw materials that are resistant to wet chlorine, hypochlorite and chlorine dioxide saturated solutions. Ester solution has obvious corrosion resistance. It is one of the very few raw materials that can be used as a hot sulfuric acid saturated solution.

The Welding neck flanges are available across various materials. These materials will have to be as per the Standards set. The materials also should be as per the quality specified by the ASTM or ASME standards.

Hot rolled 4140 steel also has good fatigue resistance and impact resistance after heat treatment.

Alloy Steel A182 F12 Flanges has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids. Alloy Steel F12 Blind Flanges also possesses a great resistance to pitting in chloride solutions, a great resistance to crevice and stress corrosion cracking.

These ASTM A182 Alloy Steel pipe fittings are manufactured from high quality raw materials, so the manufactured products are of high quality. Additionally, these ASTM A182 Alloy Steel pipe fittings are manufactured with the necessary standards, codes and guidelines in mind, resulting in a high quality product.

The connection between two pipes can be directly welded together, but it is difficult to connect together without welding. When the connection part have problems, it will be hard to repair. The same problem also happened between pipe and valve connection.

Alloy 20 (Alloy 20) is an iron-based austenitic alloy developed to resist sulfuric acid corrosion. It has excellent resistance to sulfuric acid corrosion; it has strong resistance to phosphoric acid, nitric acid and chloride environments, chloride stress corrosion, pitting corrosion and crack corrosion. Therefore, alloy 20 has the name of anti-corrosion alloy; it has a wide range of applications: such as: chemical, food, medicine, power production and plastics industries will use it. For resistance to pitting corrosion and chloride corrosion, stress corrosion cracking problems, etc., alloy 20 is often used.

The ASTM A/ASME SA 335 specification covers seamless ferritic alloy steel pipes for high temperature service. The pipe is mainly used for bending, vanstoning and similar forming operations, as well as for fusion welding.

The flanges also come in B16.5, B16.47 and other standards and dimensions. The Alloy Steel Flange Material can vary according to the chemical composition.

ASME SA335 grade p11 tubing contains trace amounts of carbon, sulfur, phosphorus, silicon and manganese. For example, the addition of chromium is known to improve the tensile strength, yield strength, fatigue resistance, wear resistance, and hardness properties of the alloy. The addition of these properties is ideal for preventing oxidation in high temperature applications.
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 B36.47

Alloy steel pipes and tubing are the best choice for stress corrosion cracking (SSC). These also apply to environments where the problem is pitting and crevice corrosion. These tubes and tubes are available within machining allowances and tolerances.
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 B36.34

When connecting these parts, put gasket in the middle of two flanges, then tightening the flange screws, so the two will be connected together tightly.

A193 Grado B7 es el tama?o de empernado mas utilizado, ademas de las tuercas A194 Grado 2H se utilizan para empernar tuberias de acero al carbono. Los pernos A193 B7 estan disponibles en tama?os metricos de M6 a M180 y tama?os imperiales de 1/4 a 7 pulgadas de diametro.

Different types of ASTM A182 F5 forged fittings include threaded flanges, slip flanges, weld neck flanges, socket weld flanges, blind flanges and lap flanges.

This is used in fabrication of tubes, boilers and super heaters. On many other applications, this is used and is available in various other sizes and shapes.

Alloy Steel F12 Flanges is effective in nature and is today found used widely in various applications all across the globe in numbers of industries. Alloy Steel F12 Flanges possesses a great resistance to pitting in chloride solutions, a great resistance to crevice and stress corrosion cracking.

WPHY 52 Fittings are recommended be heat treated by one or more of the following procedures: annealing (stress relieving), normalizing, normalizing and tempering, quenching and tempering.Made utilizing high-grade crude materials, these ASTM A860 WPHY Pipe Fittings are anti-corrosive and strong.

We are Leading Manufacturers of Alloy Steel ASTM A182 F22 Flange & have huge stock of Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500# & Class 2500.

These Alloy F5 Flange are used for transferring liquid and other fluids to several industries. We are manufactured by a team of nimble-fingered professionals using high quality raw material, modern tools and advance technology.

Alloy steel seamless pipes are used in applications that require high precision for ease of installation and accuracy of operation and application. Different types are used for different mechanical benefits. Most applications require a lot of welding, so welding alloy steel pipes is good for them. Some are low in strength but high in corrosion resistance, and some are also high in strength. We offer high strength low alloy steel pipes in various grades and sizes.
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 B36.63

A335 gr P22 seamless pipe is easy to install as the dimensions are very accurate. It can be used with other a335 gr P22 alloy pipe types and fittings.
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 B36.40

This specification covers forged low alloy flanges for use in pressure systems manufactured to specified dimensions or industry standard dimensional specifications.

This is useful for selecting bolts with different strength levels for different high pressure and high temperature applications. ASTM A193 grade b7 hex bolts and other types have a minimum tensile strength of up to 125ksi.

Alloy Steel F5 Flanges are square-shaped and are instrumental in interfacing pipes of nominal bore size without welding and are reasonable for high pressure hydraulic frameworks. ASTM A182 F5 Lap Joint Flanges go by a range of names, including back up flange, loose hubbed flange, loose ring flange and van stone flange. ASTM A182 Gr F5 Blind Flanges are commonly used in petrochemical, pipe engineering, public services and water works.

ASTM A335 P91 grade pipe is a high quality pipe for high pressure boilers. P91 tubing is ideal for bending, flanging or for welding and similar operations. The material of steel should adhere to the requirements of chemical composition, tensile properties and hardness.
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 B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P113

The plates are annealed in different condition which offers them strength. Since these plates are to be worked at high temperatures and pressure environment therefore the elements included in it matters a lot. What elements are added in the manufacturing add different properties for example, high level of chromium adds excellent corrosion resistance. It also offers excellent oxidation resistance. Resistant to oxygen is important in petrochemical and gas industries and therefore these plates are used.