ASME B16.5 Alloy Steel Flange for high temperature services

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

Pipes made of SA335 p11 material are commonly used in a variety of applications in different plants and processes around the world. For example, applications for SA335 grade p11 tubing include power plants, petrochemical plants, refineries, hydrocrackers, cokers, reheat pipelines, distillation, oilfield services, high temperature and ultra-high temperature pipelines, and more.

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.

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.

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.

The a182 f9 material contains a certain amount of chromium and molybdenum, both of which contribute to a longer service life and therefore longer life.

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.

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.

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.

The austenitic formation of Alloy Steel F9 Weld Neck Flanges offers outstanding durability, even at cryogenic temp. Those are high tensile strength, anti-corrosive, flexibility, durability, low maintenance, good dimensional accuracy, excellent surface finishes.

There is absolutely no risk of intercrystalline corrosion on cooling or welding in Alloy Steel(AS) F12 Slip-on Flanges due to the low carbon content.Alloy Steel F12 Weld Neck Flanges is appropriate to various applications where its different remarkable characteristics are sought-after but a brushed/polished finish is not necessary.

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

ASTM specifications recommend a minimum Charpy impact value for ASTM A320 L7 Stud Bolts to be 20-ft-lbf @ -150F. The Charpy impact test determines the total amount of energy that is absorbed by a material during fracture, thereby indicating the material¡¯s notch toughness.

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

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.

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 rim has numerous holes drilled into it that enables the flanged to be attached to a bolted flange. This design is far better because of the structural valve.

A335 P1 chrome pipe is popular in several industries. This is especially evident in the power industry and petrochemical plants, where these ferritic-based ASME SA 335 P1 grade alloy steel pipes are commonly used in oil refineries.
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 B36.21

ASTM A193 Grade B7 specification covers requirements for high tensile alloy steel bolting material for use in high temperature or high-pressure service and other special purpose applications.

ASTM A193 Grade B7 specification covers the requirements for high strength alloy steel bolting materials for high temperature or high pressure service and other special purpose applications. It is a standard specification that defines typical chemical composition, mechanical properties, hardness requirements, preferential heat treatment, product marking, certification, and other requirements for bolted connections used in pressure vessel service, valves, flanges, and fittings. ASTM A193 defines SI (metric) and inch-pound units.

In applications where higher working pressures are a prerequisite, the use of seamless pipes is justified. Although stronger than welded pipe, the cost is much higher. In addition, in welded products, there is a greater risk of intergranular corrosion in the heat-affected weld zone. The obvious difference between alloy steel welded pipe and seamless product is the transverse seam along the length 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 B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P128

Hastelloy C276 ASTM Standard B575 Plate is a nickel-molybdenum-chromium superalloy with an enhancement of tungsten made to have superb deterioration resistance in a wide variety of extreme atmospheres.

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

Alloy seamless steel pipes are mainly used for high pressure and high temperature pipes and equipment such as power plants, nuclear power plants, high pressure boilers, high temperature superheaters and reheaters. It is made of high-quality carbon steel, alloy structural steel and stainless heat-resistant steel, processed by hot rolling (extrusion, expansion) or cold rolling (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.

ASTM A320 Class L7 fasteners are manufactured using high strength materials ideal for the manufacture of fastener product bolts, studs and bolts that can be used in a wide range of high temperatures in bolting applications.

Standard ASTM A193 B7 fasteners typically have a common bare metal finish. However, ASTM A193 Grade B7 studs can be galvanized, hot-dip galvanized, xylan coated, teflon coated if requested by the buyer. Coating ASTM A193 B7 fasteners can help improve the corrosion resistance of fasteners. This ASTM A193 Grade B7m bolt is typically used to fasten medium high temperature service materials. These bolts are liquid quenched from 50¡ãF to 900¡ãF and they can be air quenched from -40¡ãF to 900¡ãF.

These are also added with limited amounts of elements like sulphur, silicon, manganese and phosphorous that helps in increasing ¨C Hardness, Strength, Chemical resistance, and more.

The high chromium content gives these alloy steel socket weld flanges very good resistance to moisture erosion, which also contributes to their high temperature strength and resistance to scaling at high temperatures.

Adding nickel adds toughness to the alloy. Similarly adding chromium to chrome moly flanges aids in enhancing other mechanical properties such as temperature strength, hardness, as well as corrosion resistance.

After hot working, forgings should be cooled to a temperature below 1000¡ãF (538¡ãC) prior to heat treatment in accordance with ASTM A182. Low alloy steels and ferritic and martensitic stainless steels shall be heat treated in accordance with ASTM A182.