Alloy A320 L7 L7M Washers commonly used for valves flanges fittings and pressure vessels

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 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

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 addition of molybdenum strengthens the elastic limit of the A335 p11 welded pipe and increases its temperature strength. In addition to these properties, there is a reduction in brittleness and an improvement in the weldability and hardenability of the pipe.
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 B36.48

B7 threaded studs and short head bolts are readily available in the market. B7 grade bolts are often used for pipe flange connections. These bolts are usually sold in a normal bare metal finish, but are usually hot-dip galvanized, galvanized, Xylan coated, PTFE coated, or otherwise treated with a corrosion resistant coating.

ASTM A182 Alloy Steel Forged Fittings are manufactured according to the ASTM A182 specification, which covers high pressure and high temperature service flanges covered by ASME B16.11, MSS-SP-79/ 83/ 95/ 97 and BS3799 standards.

ASTM A320 bolts are suitable for low temperature service down to -150¡ãF and have a minimum Charpy impact value of 20-ft-lbf at this temperature. ASTM A320 Hex Bolts must obtain the durability and service of high temperature or high pressure and corrosion resistant steel. ASTM A320 Stud Bolts are available in different sizes and patterns, our premium ASTM A320 Grade L7 AS Bolts are in high demand in the market due to their speculative properties and specifications.

Applications for Alloy Steel A335 P5 EFW Tubing can be seen in petrochemical, oil and gas industrial applications, power plants and other high pressure and high temperature services.
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,P123

Flange connection has good strength and sealing, simple structure and low cost. It can be repeatedly disassembled.

The A335 p12 material composition includes carbon up to 0.05 ¨C 0.15, manganese up to 0.30 ¨C 0.61, sulfur and phosphorus up to 0.025, silicon up to 0.5, chromium 0.80-1.25 and molybdenum up to 0.44-0.65. This steel shall meet the specified chemical composition, tensile properties and hardness requirements.
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 B36.66

The addition of chromium and molybdenum to a182 grade f9 enhances the corrosion resistance of the flange.

These are flanges with creep strength and high resistance; therefore, steel threaded flanges help them work in the petrochemical industry.

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,P114

Alloy 32750 is a super duplex stainless steel supplied in hot worked and solution annealed conditions. As a super duplex stainless steel, it combines the desirable aspects of austenitic and ferritic steels. 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 over 50¡ãC.

These alloys typically comprise of about 1 % to 5% of the steel’s content and are usually added based on their ability to provide a very specific attribute for their end use.

In order to strengthen chromium alloy flanges, elements such as copper, titanium, vanadium and niobium are added to the alloy.

They have a minimum yield strength of 105ksi. There are different types of bolts and bolts for different types of applications such as ASTM A193 gr b7 hex bolts.

B8M Grade 1 fasteners require carbide solution treatment, while Grade 2 fasteners require additional strain hardening operations to increase strength and reduce susceptibility to wear.

A182 F5 grade slip flanges are known for their low material cost and ease of installation. One of the added benefits of these flanges is that they can also be used as lap flanges if dealing with Type B or C ends.

The ASTM A194 specification covers a wide variety of carbon, alloy, and martensitic stainless steel nuts in sizes ranging from 1/4 to 4 inches and metric M6 to M100 nominal. It also covers austenitic stainless steel nuts in the size range of 1/4 inch and M6 nominal and above. These nuts are used for high pressure or high temperature service, or both.

ASTM 182 is use in pressure systems, Included are flanges, fittings and similar parts to specified dimensions or to dimensional standards, such as the ASME specifications. 182 F5 Cl2 Alloy Steel Flanges are well suited to not only high temperature but also high pressure or a combination of both these applications.

SA182 F5 Plate Flange can be used in those environments where there is a presence of mild corrosive compounds. It can also be used in non-corrosive applications as well as in erosive applications at the temperature between ranging between -30oC up to +650oC. ASTM A182 Grade F5 Flanges in conditions characterized by increased levels of carbon dioxide (CO2), hydrogen sulphide (H2S), and as well chlorides (Cl). The highlight of A182 F5 Steel Slip On Flanges are Precise plan, Accurate measurements, Resistant to corrosion, Less costs, pitting and crevice resistance.

F11 alloy steel pipe flange is the second most common connection method after welding. Use them when joints need to be disassembled. ASTM A182 Gr F11 flanges provide flexibility for maintenance. It connects pipes with various equipment and valves.

The material contains carbon, manganese, phosphorus, sulfur, silicon, 8% chromium and molybdenum in a mixture. SA 335 grade P5 alloy steel pipe has similar strength to most austenitic stainless steel grades, with a minimum yield strength of 205MPa and a minimum tensile strength of 415MPa.
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,P120

Cold drawn and cold rolled tube types are available. There are seamless tubes, welded tubes, ERW tubes and fabricated tubes. Seamless pipe is made from a single piece of material, whereas ASTM A333 Grade 6 Welded Pipe Specification requires it to be welded from strip or sheet of the same material grade.

The alloy has great mechanical properties at subzero temperatures.For catering to the needs of our customers better, it is essential that we manufacture Monel Pipe Fittings in different types, with each one serving some specific purpose.

Its greatest advantage is that it can be assembled without welding, which explains its use in low-pressure service at ordinary atmospheric temperatures and in highly explosive areas where welding creates a hazard.

A182 pipe flanges tend to have fairly high electrical conductivity among other wrought alloy steels in their class. It has a higher base cost and higher embodied energy.

Despite adding these elements, low alloy steel flanges aren’t necessarily difficult to weld. The key to achieve a successful performance of the welding operation is by knowing exactly what type of low-alloy steel you have.

Flanges are usually welded or threaded. Flange joints are made by bolting two flanges together with a gasket between them to provide a seal.

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.

We offer ASME SA335 Grade P22 Welded Pipe, ASTM A335 P22 Pipe is manufactured according to ASTM standards. Alloy steel A335 P22 ERW tube, Astm A335 P22 temperature extreme cold formed, made from steel strip drawn through a series of rolls.

It must be slid into the pipe before welding. In this case, it’s a double weld on both sides (i.e. inside and outside), so it provides durability that helps avoid leaks.