ASTM A182 F5 F11 F12 F91 WN flanges Blind flanges SO flanges are usually welded or screwed

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

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.

La especificacion ASTM A193 Grado B7 cubre los requisitos para materiales de empernado de acero aleado de alta resistencia para servicio de alta temperatura o alta presion y otras aplicaciones de proposito especial. Es una especificacion estandar que define la composicion quimica tipica, las propiedades mecanicas, los requisitos de dureza, el tratamiento termico preferencial, el marcado del producto, la certificacion y otros requisitos para las conexiones atornilladas utilizadas en el servicio de recipientes a presion, valvulas, bridas y accesorios. ASTM A193 define unidades SI (metricas) y pulgadas-libras.

The alloying elements of A335 also impart higher corrosion resistance to the steel pipe. This also makes it the first choice for chemical companies.

The range of pipe diameters of A335 that can be tested by each method should be limited by the respective scope of practice. The different mechanical testing requirements for pipes, i.e. transverse or longitudinal tensile tests, flattening tests, hardness or bending tests, are presented.
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 B36.22

Chrome moly alloy flanges connect pipes, valves, pumps and other equipment, forming a piping system.

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.

When the carbon content of the a333 gr 6 welded pipe chemistry is lower, the chance of cracking in the welded area is also lower. However, some manufacturers prefer seamless pipes over welded pipes. The reason behind this is that the performance of the a333 gr 6 seamless tube is almost 20% higher than the welded one in high pressure environments.
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 B36.57

The production of ASME SA182 F9 flanges will be done using alloys with lower carbon content. Reducing the carbon content in these alloys reduces the formation of carbide precipitates. This basically means that alloy steel F9 flanges will no longer be susceptible to intergranular corrosion in the heat affected weld zone.

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 F5 Flanges is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal.

At elevated temperatures, conventional steels, unlike ASTM A 335 P91 pipes, begin to lose their microstructural form, leading to failure. A burst or crack in the pipe is a visible fault. But since SA 335 P91 chrome-plated welded pipe is well suited to sustain itself at high temperatures, failure rates are extremely low.
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

ASTM A335 grade P91 tubing contains small amounts of other alloys such as aluminum, niobium, nickel, nitrogen, titanium, vanadium, and zirconium. These pipes are based on the A335 standard, but when forged or drilled, the pipes can also meet the A369 standard. These pipes have a minimum yield strength of 415 MPA and a minimum tensile strength of 585 MPA.
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 B36.30

ASTM A182 Alloy Steel Blind Flanges is a solid disk used to block off a pipeline or to create a stop. It has mounting holes around the perimeter and the gasket sealing rings are machined into the mating surface.

Impact strength as well as high surface smoothness are the result of round bar forging of alloy steel DIN 1.7335. Once the materials are forged, they are allowed to cool to the temperature specified by the specification ASTM A 182.

Our alloy steel pipes are available in different sizes, grades, gauges and thicknesses according to customer’s custom requirements. We also supply these alloy steel LSAW pipes to our valuable customers at fairly reasonable prices.
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

ASTM A335 P91 Welded Pipe, A335 P91 Pipe Gauge Alloy Steel Pipe is suitable for bending and similar forming operations, as well as fusion welding in high temperature service. We stock ASTM A335 P91 Seamless Pipe (HFS), ASME SA Gr.P91 Pipe and Gas Cylinders in a wide range of sizes with divider thicknesses up to 100mm.
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,P135

While the term alloy steel could even apply to stainless steel grades, the ASTM specification or ANSI standard used to produce the Alloy Steel Flanges would give the buyer details regarding the chemistry details of these products.

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

SA 182 Gr F1 Slip on Flanges also known as SO flanges. This is a flange that slides over the pipe and has an internal design that is slightly larger than the pipe.

The grade mark consists of the grade symbol “2H” and the manufacturer’s identification mark.

ASTM A193 Grade B7 is a standard material specification for chromium-molybdenum alloy steel fasteners for use in high tensile, high temperature and special purpose applications.

ASTM 182 is used for pressure systems, including flanges, fittings, and similar parts that conform to specified dimensions or dimensional standards such as ASME codes.

A182 threaded flanges are primarily used for utility services such as air and water. It is similar to a Slip-On flange, but the holes are threaded.

ASTM A182 is commonly used in petrochemical, plumbing, public service, and water works.

A wide range of industries, shops and systems rely on high-performance flanges, and custom pipe flanges are often critical to getting the job done right.

A182-F11 belongs to the American standard pearlitic organization heat-resistant steel forgings

Chromium molybdenum has a better strength-to-weight ratio than steel, which enables designers to use thinner walled tubing or smaller diameter tubing to reduce overall weight.

HASTELLOY C-276 alloy is available in the form of plates, sheets, strips, billets, bars,
wires, pipes, tubes, and covered electrodes.

Alloy steels are used in boiler construction because they are inexpensive, readily available, easy to form and weld into desired shapes, and, in a wide range, have sufficient resistance to oxidation and corrosion to provide many industries with years of satisfaction service. Alloy steels are used in a range of demanding applications in the aerospace and power (nuclear) industries. Alloy steels are also found in applications where their response to magnetism is important, such as in transformers and electric motors.
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

Production of low alloy steel materials of different specifications. A335 is a specification for seamless ferritic alloy steel pipes. These alloy steel seamless pipes are used for high temperature service. There are also high alloy steel materials. There are different grades in this material specification. There are grades P1, P2 to P91 and P92. The most commonly used grades are p5, p9, p11, p22, p91 and p91.
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,P136

ASTM A335 P11 pipe (ASME SA335 P11) is a chromium-molybdenum alloy seamless pipe for high temperature service. P11 grade pipe has a chromium content of 1.00% to 1.50%, a molybdenum content of 0.44% to 0.65%, and a minimum tensile strength of 415MPa. Minimum yield strength 205Mpa.
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,P131