A182 F9 F11 F12 F51 Alloy Flange low alloy steel Flange

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

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

A weld neck flange, also called a tapered hub flange or high-hub flange, is a kind of flange that can relocate stress to the pipes, ensuring a decrease in high-stress concentration at the bottom of the flange.

A blind flange is a solid flange as shown below. The purpose of these is to block off a section of pipe or a nozzle on a vessel that is not used.

We are committed to supplying high quality A335 alloy tubes to our esteemed customers at the most reasonable price. Following the principles of Total Quality Assurance is our risk. In pursuit of total quality, we have developed a quality specification and quality assurance work plan.
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 B36.38

Our alloy steel blind flanges are mainly caused by environmental factors such as wind exposure, man-made pollution and high temperature, and are more serious near the ocean, which is the main cause of seawater pollution.

ASTM A182 alloy steel F12 flanges are corrosion resistant. ASTM A182 alloy steel F12 flanges also have high dimensional accuracy. These ASTM A182 alloy steel F12 flanges also have a rust-proof finish. They are used in numerous industrial applications. These applications include the paper and pulp industry, the oil and gas industry, and more.

ASTM A182 Low Alloy Steel flanges as well as the other types of alloys. The ASTM A 182 specification specifies flanges for high pressure services.

Alloy steel grade 2H gaskets are further cut, hydrotested, annealed, straightened and pickled. The manufacturing process of our Alloy Steel Grade 2H Split Gaskets is carried out in a state-of-the-art production facility under the proper supervision of industry experts.

Nuts with a nominal size over 1 inch shall be a UNC Series Class 2B fit or an 8 UN Series Class 2B fit. High strength ASTM A194 grade 2H nuts are common in the market and are often replaced by ASTM A563 grade DH nuts due to the limited availability of DH nuts in certain diameters and finishes.

Our Alloy Steel Flanges are widely used in various industrial applications.

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

Seamless pipes are used with slip on flanges to make the process smooth. The Alloy Steel Blind Flanges are used to close a pipe connection.

For A335 steel pipe, the addition of molybdenum (“Moly”) increases the strength and elastic limit of the steel, and enhances the wear resistance, impact quality and hardenability of the steel. It also improves softening resistance, makes chrome steel less brittle and prevents pitting corrosion. Chromium is also a key element in stainless steel alloys, preventing oxidation of the steel at high temperatures and improving the corrosion resistance of the steel. It improves the tensile, yield and hardness properties of low alloy pipes at room temperature.
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,P104

We are a professional manufacturer and exporter of ASTM B366 WP20CB Pipe Fittings N08020 elbow, Alloy 20 Elbow Tee reducer Caps

Alloy Steel Grade 2H Flat Washers are available in a variety of sizes according to market and customer needs. We play a major role in providing our customers with a high quality range of alloy steel grade 2H lock washers with some great features such as precise dimensions, custom solutions, robustness and more.

A194 2H Heavy Duty Hex bolts are designed for high strength, high temperature or high pressure applications and are usually available in a plain finish.

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.

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.

Although acceptable fouling levels are considered beneficial to the alloy, in moderate cases, fouling deposits on Astm A182 F9 flange surfaces can act as a barrier to excessive corrosion. When flanges are produced using specification ASTM A182, they work well at high temperatures, albeit in applications with high pressure.

These ASTM A182 alloy steel F12 flanges are corrosion resistant. ASTM A182 alloy steel F12 flanges also have high dimensional accuracy.

AISI 4130 grade is a low alloy steel with elements such as chromium and molybdenum added as strengthening agents in its distribution. AISI 4130 pipe is more receptive to treatment by heat or mechanical means than conventional carbon steel.
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 B36.64

The ASTM A194 specification covers carbon, alloy and stainless steel bolts for high pressure and/or high temperature service.

ASTM A335 P91 Seamless Pipe is one of the seamless pipes that standardize A335 in various industries. ASME SA 335 Grade P91 Alloy Steel Pipe is made of chrome molybdenum alloy. These pipes contain 1% molybdenum, 9% chromium and nickel, manganese, silicon and carbon. ASTM A335 P91 pipe has very high tensile strength, yield strength, impact cracking resistance, corrosion cracking resistance and oxidation resistance.
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 B36.23

The weld neck flange comprises of a round fitting that extends beyond the rim of the circumference. These flanges, typically manufactured from forging, are actually welded to pipes.

A193 B7 threaded rods are also known as hex bolts. It has threads on both ends and it is a relatively long rod.

Grades 7, 7M, 8 and 8M have 8-10% nickel added. Grade 8 material lacks molybdenum, but Grade 8M ASTM A194 2h material contains all the elements mentioned in the composition, making it the strongest and most expensive class of materials in this grade.

Producing Standard
ASME B18.2.2
DIN 934 

ASTM A335 Alloy Steel Seamless Pipe Alloy steel contains significant amounts of elements other than carbon, such as chromium, silicon, nickel, manganese, molybdenum, tungsten, vanadium, and limited amounts of other generally accepted elements such as sulfur, manganese, silicon, and phosphorus . These alloying elements are usually added to increase the hardness, strength and chemical resistance of the final product.
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,P117

ASTM A194 bolts include metals such as manganese and silicon, with additions of phosphorus, sulfur, and carbon. ASTM A194 gr 2h bolts are suitable for high pressure or high temperature service, or both. Further machining is possible by centerless grinding or cold drawing.

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.

We offer a wide range of ASTM A335 P9 alloy steel seamless pipes using high quality raw materials. These alloy steel P9 ERW tubes are forged between 2250¡ãF/1750¡ãF (1230¡ãC/955¡ãC) for 30 minutes per inch of billet or ingot section thickness. These are A335 P9 pipes manufactured to international quality standards. These alloy steel P9 seamless pipes are also available in different sizes, grades, thicknesses and specifications according to customer 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 B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P141

SA335 grade P11 seamless pipe is dimensionally accurate for precision applications, while welded pipe is stronger with high wear and tear properties.