pipe astm a335 p91 tube

Grade 1 alloy steel plate has very high corrosion resistance, but it is increasingly expensive. Our alloy steel products are known worldwide for their reliability and quality.

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.

Gold Steel P91 of A335 EFW Pipe is an austenitic compound whose elasticity and creep strength can be improved by cold working. These pipes are widely used in oil and gas, power plants, shipbuilding, heavy engineering and other industries. All products meet or exceed industry standards of API, ASTM, ASME, ANSI and other national and international standards.
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,P122

The ASTM A/ASME SA 335 specification covers seamless ferritic alloy steel pipes for high temperature service. The pipe is mainly used for bending, vanstoning and similar forming operations, as well as for fusion welding.

The alloy content of pipes that make up low alloy steel is less than 5%. High alloy steels, on the other hand, have an alloy content ranging from 5% to about 50%. Similar to most alloys, the working pressure capacity of alloy steel seamless pipe is about 20% higher than that of welded 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,P127

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

ASTM A335 P22 Seamless Pipe can be used in forming operations without cracking. This tube can be bent, forged, flanged and fusion welded. It also has very high tensile strength, corrosion resistance and yield strength.
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 B36.41

ASTM A335 alloy is the steel pipe defined according to the production bill of materials (or material). As the name implies, the alloy pipe and the seamless steel pipe are defined according to the production process (seamless seamless). The difference between the seamless pipe is the welded pipe, including the straight seam welded pipe and the seamless steel pipe. Spiral tube.
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

Alloy steel pipes are used in applications requiring moderate corrosion resistance, good durability, and economical cost. Simply put, alloy pipes are preferred in those areas where carbon steel pipes can fail. There are two types of alloy steel – high alloy steel and low alloy 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 B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P126

The A335 Chromium (or Chromium) 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.

If you are interested in purchasing high quality ASTM A335 P1, P2, P5 or P9 seamless alloy steel pipes for boilers, superheaters and heat exchangers, please contact us today for more details.
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

High alloy steel and low alloy steel are two types of alloy steel. Low-alloy steel pipes consist of pipes with an alloying percentage of less than 5%. The alloy content of high alloy steels varies from 5% to about 50%. Similar to most alloys, the working pressure capacity of alloy steel seamless pipe is about 20% higher than that of welded 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 B36.64

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

A335 grade P5c pipe is a low alloy carbon steel (Cr-Mo) self-quenching in air where high hardness and residual stress are required for welding and it is not recommended for direct use in services requiring critical conditions. This situation requires the application of post weld heat treatment (PWHT). If you want to avoid PWHT then you can use preheat (120¡ãC) when soldering A335 grade P5c tubes. PWHT is required if the thickness of ASTM A335/ASME SA335 P5c alloy steel pipe is greater than 13 mm.
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,P149

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.

Alloy steel seamless pipes are used in applications that require high precision for ease of installation and accuracy of operation and application. Different types are used for different mechanical benefits. Most applications require a lot of welding, so welding alloy steel pipes is good for them. Some are low in strength but high in corrosion resistance, and some are also high in strength. We offer high strength low alloy steel pipes in various grades and sizes.
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 B36.63

Seamless steel tubes in ASTM A333, reheated and controlled at temperatures for hot working and hot finishing operations to finishing temperatures ranging from 845 to 945¡ãC [1550 to 1750¡ãF] and cooled in air or in air. Controlled atmosphere furnaces from initial temperature over 845¡ãC [1550¡ãF]. For ASTM A333 Grades 1, 6, and 10 Seamless Steel Pipe, heat treatment can be performed from a uniform temperature in excess of 815¡ãC [1500¡ãF], then quenched in liquid and reheated to the appropriate tempering temperature, this heat treatment ASTM A333 4.3.1 The above treatment scheme can also be replaced.
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 B36.54

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.

A335 steel pipe can be used in NACE applications at high temperature and high pressure in sour environments, can be used in NACE-MRO 175 Sour Service, ideal for creep rupture applications, can handle high temperatures with very low elasticity.

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

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

ASTM A333 is a standard specification for seamless and welded carbon and alloy steel pipes for low temperature service or other applications requiring notch toughness. This standard covers several grades of ferritic steels: Grade, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10 and Grade 11. Metals-Piping offers welding processes by seamless or no filler metal added in the welding operation, but Grade 4 shall be manufactured by seamless processes only. Pipes should be free of welding repairs, either by radiographic or ultrasonic 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 B36.19
Material Alloy Steel ASTM A333 Grade 3, Grade 6,Grade 8,Grade 9
ASTM A335 P5,P9,P11,P12,P22,P91,P146

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

The skills of chromium alloy steel include higher oxidation corrosion rates. In addition to being resistant to oxidation, alloy steel P91 of A335 steel pipe is also able to withstand very high temperatures and can be used in applications involving boilers, heaters, power generation, and more. The above applications work based on elevated temperature, which is why many suppliers recommend alloy steel P91 pipe for the above applications.
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

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.

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

Chromium molybdenum pipes under ASTM and ASME specifications A/SA 335 P1, P2, P11, P12, P15, P22, P91, P92, P122 are used in the power industry, while ASTM/ASME A/SA 335 P5, P9 are used in the petrochemical industry, It has strong crack resistance at high temperature and high pressure, can be used for hydrogen sulfide corrosion service, hydrogen attack and embrittlement cracking
Resistant to hot sulfide corrosion cracking.
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

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

The corrosion resistance of SA 335 P91 seamless pipe is much higher than that of carbon steel. Grade P91 is a reference for the chemical composition of alloy steels. A chromium-molybdenum steel, the chemical composition of ASTM A335 P91 alloy steel pipe consists of 9% chromium and 1% molybdenum and vanadium.
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

ASTM A335 Pipe (ASME S/A335, Chromium Molybdenum) is a seamless ferritic alloy steel pipe for high temperature service. Pipe ordered to this specification shall be suitable for bending, vanstoning, and similar forming operations, and fusion welding. Sometimes referred to as “P-grade”, lilac molybdenum tubes are popular in grades P5, P9, P11, P22 and P91. The most common uses of grades P11, P22 and P91 are in the power industry and petrochemical plants, while grades P5 and P9 are often used in 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,P110