a335 tube seamless pipe of high quality in China

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 low carbon content in A335’s alloy steel P9 square tube reduces carbide precipitation during welding to support corrosion-resistant properties in welded structures. Clad Steel P9 Rectangular Tubes are designed to prevent decomposition-erosion (joint mechanical and material spoilage) where scrubber mixers and gas condensate often contain chlorides.
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,P142

ASTM A335 P11 is part of ASTM A335, Pipe shall be suitable for bending, flanging, and similar forming operations, as well as fusion welding. The steel shall meet the requirements of chemical composition, tensile properties and hardness. Each pipe shall be hydrostatically tested. In addition, each pipe shall be inspected in accordance with the practice required for non-destructive testing.
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 B36.45

While chromium is an important alloying agent in a335 P91 piping, it is known to prevent corrosion and has a high resistance to oxidation at high temperatures. Since these pipes are surface treated or coated, they are also protected against corrosion. Surface coating can be accomplished by various techniques such as passivation, phosphating, oil immersion, varnishing and shot peening.
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,P150

Monel 400? is a nickel-copper alloy that is hardened by cold working only. The various types of available fittings are Monel Stub end, Monel Reducer, Monel End Cap Fittings, Monel tee, etc.

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.

Low alloy steels contain trace amounts of alloying agents such as niobium, nitrogen, vanadium, copper, nickel, chromium, titanium, calcium, molybdenum, rare earth elements or zirconium.

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.

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

Due to its ease of welding, ASTM A335 Grade P91 Welded Pipe can be welded well into piping systems. Pipes have different tolerance classes and test standards depending on the application requirements, grade, schedule and pressure rating of the pipe material.
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 B36.28

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

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.

Among alloy steel grades, when metals like Nickel, Chromium and Molybdenum along with other alloying element content consist of less than 10.5% of the total alloy percentage, they are defined as low alloy steels.Generally, most low alloy steel flanges possess a precise chemical composition.

B7 and B7M shall be heat treated by quenching in a liquid medium and tempering. For B7M fasteners, the final heat treatment, which may be the tempering operation if conducted at 1150 ¡ãF [620 ¡ãC] minimum, shall be done after all machining and forming operations, including thread rolling and any type of cutting.

Inconel600 is suitable for welding with the same material or other metals by any traditional welding process, such as tungsten electrode inert gas welding, plasma arc welding, manual sub-arc welding, metal inert gas shielded welding, molten arc inert gas shielded welding, and pulsed arc welding. Welding is the preferred solution. When using manual arc welding, it is recommended to use a shielding gas mixed with various components (Ar+He+H2+CO2).
Welding of Incoloy 825 must be carried out in the annealed condition and cleaned with a stainless steel wire brush to remove stains, dust and various markings. When welding the root of the weld, extreme care must be taken (Argon 99.99) to obtain the best quality of the root weld so that the weld does not produce oxides after the root has been welded. Color from the weld heat-affected zone should be removed with a stainless steel brush while the weld area is not cool.

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.

A335 p9 pipes are made of ferritic alloy steel for high temperature applications. The sa335 p9 material chemically contains metals such as molybdenum and chromium added to the alloy. By adding metals such as molybdenum and chromium, the tensile strength of the alloy is increased. The yield strength of the a335 p9 welded pipe is 205 Mpa, while its tensile strength is 415 Mpa. The elongation of the pipe is about 30%.
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,P151

It can be used with other a335 gr P22 alloy tube types and fittings. SA 335 gr P22 alloy steel pipe has high heat resistance and low thermal expansion. This property of P22 metal tubing makes it suitable for use in the oil and gas industry, power industry, petrochemical industry and refineries where temperatures often fluctuate at high temperatures.
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 B36.44

ASTM A193 Grade B7 bolts are made of chrome-molybdenum material with high tensile strength and good elongation properties.

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.

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

Alloy round steel has high chromium content, which is beneficial to wet corrosion resistance, as well as improving its high temperature strength and high temperature scaling resistance.

ASTM A320 Grade L7M bolts and studs are also made from quenched and tempered alloy steel.

Alloy steel pipes are used for high temperature and very low temperature service (low temperature) in the energy industry, or for very high pressure applications. ASTM A335 Alloy Steel Pipe is suitable for ASTM A234 WPx Series Butt Weld Fittings (WP5, WP9, WP91) and A182 Fx Forged Fittings and Flanges (A182 F5, F9, F11, F22, F91). All of these materials have similar chemical and mechanical properties and can be joined or welded.

ASTM A182 Gr F1 Blind Flange is a solid disc used to block a pipe or create a stop. It is similar to an ordinary flange, with mounting holes around it, and the sealing ring is machined into a mating surface.

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

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.

Due to the chemical composition of Molybdenum (Mo) and Chromium (Cr), A335 is often referred to as Chromium Molybdenum Tube. Molybdenum increases the strength of the steel as well as the elastic limit, wear resistance, impact quality and hardenability. Molybdenum increases resistance to softening, inhibits grain growth, and makes chromium steel less susceptible to embrittlement. Molybdenum is the most effective single additive for improving high temperature creep strength. It also enhances the corrosion resistance of the steel and inhibits pitting corrosion. Chromium (or chrome) is the basic component of stainless steel. Any steel with 12% or more chromium is considered stainless steel. Chromium is almost irreplaceable in terms of resistance to oxidation at high temperatures. Chromium increases tensile, yield and hardness 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,P99

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.

A335 P22 Chromium Pipe contains chromium in its composition to provide high corrosion resistance. There are other elements in the material composition of P22 steel pipe. Molybdenum is a common addition in all A335 grades. Manganese, phosphorus, silicon and carbon are added according to different grades.
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 B36.43

ASTM A335 is the standard specification for seamless ferritic alloy steel pipe for high temperature service. Covers server levels: P1, P2, P5, P5b, P5c, P9, P11, P12, P15, P21, P22, P23, P91, P92, P122, of which P5, P9, P11, P22, P91, P92 are used in practice the most extensive. This specification covers nominal and minimum wall chrome-molybdenum (also known as Cr-Mo or Cr-Moly) alloy steel pipes for high temperature applications. Pipe ordered to this specification shall be suitable for bending, vanstoning and similar forming operations, and fusion welding. ASTM A335 P11, P22, P91 and P92 are commonly used in power plants and the chemical and petrochemical industries, while P9 and P5 are mainly 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 B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P106