ASME / ASTM A335 Alloy Steel P91 Pipes Manufacturer

ASTM A335 Alloy Steel P91 pipes are perfect for the industrial needs. This type of pipe is made from various alloys, which give it its unique properties that make it suitable for many applications. 

The ASTM A335 P91 Pipes come in two types: seamless and welded. Seamless pipes are those that are made without any welds or seams. They are more expensive but provide better performance as they have fewer weak points than welded pipes. Welded pipes, on the other hand, involve welding together pieces of metal to form a new pipe. They are cheaper but not as durable as their seamless counterparts. It is important to note that both types of these pipes meet the same technical standards set by ASTM International (formerly known as American Society for Testing and Materials).

ASME SA / ASTM A335 P91 Alloy Steel Pipes

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ASTM A335 P91 Pipe are commonly used in power plants, oil refineries, petrochemical plants, and other industrial facilities where there is a need for higher temperature resistance than what traditional carbon steel can provide. Moreover, this type of pipe has good creep strength at elevated temperatures and can withstand high pressure levels. The applications of these types of alloy steel pipes include steam pipelines in power plants, heat exchangers in petrochemical industries, and superheaters in oil refineries.

The main benefit of using A335 P91 Specification is their superior mechanical properties such as higher hardness values compared to conventional carbon steels. Furthermore, these kinds of alloy steel pipes exhibit excellent corrosion resistance when exposed to acidic environments due to their chromium content which helps protect them against rusting or pitting caused by acid attack. Furthermore, they have good weldability characteristics make them easy to shape into desired shapes while still maintaining their strength and durability even after welding operations have been carried out on them. There are several products available like ASTM A213 T1 Tubes etc.

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Alloy steels such as the ASTM A335 Alloy Steel P91 Pipes give many advantages over traditional carbon steels due to their increased hardness values and ability to handle high temperatures and pressures more effectively than conventional carbon steels can manage. These alloy steel pipes have great corrosion resistance thanks to their chromium content which helps protect them from acid attack while also providing excellent weldability characteristics so that they can be shaped into desired shapes with ease while still offering maximum strength and durability even after welding operations have been performed on them. We offer various kinds of products like ASTM A213 T2 Tubes etc.

What are the advantages of using ASTM A335 Alloy Steel P91?

The advantages of using ASTM A335 Alloy Steel P91 include its excellent high-temperature strength, corrosion resistance, and toughness. It is also easy to weld and has good formability, making it a popular choice for many industrial applications.

What are the applications of ASTM A335 Alloy Steel P91?

ASTM A335 Alloy Steel P91 is commonly used in power plants, refineries, and other industrial settings where high-temperature and high-pressure conditions are present. It is used in boilers, heat exchangers, and other equipment that requires high-temperature resistance and corrosion resistance.

Specifications : ASTM A 335, ASME SA 335
Size : 1/8NB TO 24NB IN
Type : Seamless
Specialized in : Large Diameter Size
Outer Dimensions : 19.05mm – 114.3mm
Wall Thickness : 2.0mm – 14 mm
Length : max 16000mm
Schedule : Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thk.
Form : Round, Square, Rectangular, Hydraulic Etc.
Length : Single Random, Double Random & Cut Length.
Tubing End : Plain End, Beveled End, Treaded.

 

ASTM A335/ASME SA335 P91 High Quality Alloy Steel Pipe Chemical Composition :

C, % Mn, % P, % S, % Si, % Cr, % Mo, % V, % N, % Ni, % Al, % Nb, %
0.08-0.12 0.3-0.6 0.02 max 0.01 max 0.2-0.5 8.0-9.5 0.85-1.05 0.18-0.25 0.03-0.07 0.4 max 0.04 max 0.06-0.10

 

Seamless Heat Exchange Alloy Steel P91 Pipes Mechanical properties:

Tensile Strength , MPa Yield Strength, MPa Elongation, % Hardness, HB
585 min 415 min 20 min 250 max

 

Alloy Steel P91 Pipes Heat Treatment Requirement :

 

P5, P9, P11, and P91

   

Grade

Heat Treatment Type

Normalizing Temperature Range F [C]

Subcritical Annealing
or Tempering
Temperature Range F

[C]

P5 (b,c)

Full or Isothermal Anneal

   
 

Normalize and Temper

*****

1250 [675]

 

Subcritical Anneal (P5c only)

*****

1325 – 1375 [715 – 745]

P9

Full or Isothermal Anneal

   
 

Normalize and Temper

*****

1250 [675]

P11

Full or Isothermal Anneal

   
 

Normalize and Temper

*****

1200 [650]

P91

Full or Isothermal Anneal

   
 

Normalize and Temper

*****

1250 [675]

P91

Normalize and Temper

1900-1975 [1040 – 1080]

1350-1470 [730 – 800]

 

Quench and Temper

1900-1975 [1040 – 1080]

1350-1470 [730 – 800]

 

Alloy Steel P91 Pipes Tensile Requirements :

  Seamless  
  P-5 P-9 P-11 P-22 P-91 P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].
Tensile Strength, min., psi            
ksi 60 60 60 60 85
MPa 415 415 415 415 585  
Yield Strength, min., psi            
ksi 30 30 30 30 60  
MPa 205 205 205 205 415  

Types Of Alloy Steel Grade P91 Pipes

Alloy Steel P91 Pipes P91 Alloy Steel A335 Pipe
Alloy Steel Pipes ASTM A335 P91 Alloy Steel Seamless Pipes
AISI Alloy Steel EFW seamless pipes ASME SA335 Alloy Steel Rectangular Pipe
P91 High Pressure Seamless Boiler Pipes in Iraq Alloy Steel Gr P91 LSAW Pipes in Iran
High Temperature Seamless Ferritic Alloy Steel Pipes Certified Alloy Steel P91 Pipes in Egypt
P91 Alloy Pipe in Jordan ASME SA / ASTM A335 P91 Pipes
High Quality Grade P91 Alloy Steel Pipes in Peru P91 Pipes Dealer Singapore
Alloy A335 Seamless Square Pipe in Chile Grade P91 Hydraulic Pipes Exporter in Bahrain
AISI P91 ERW pipes in Malaysia ASTM A335 P91 Pipes

Application Of Alloy Steel P91 Pipes Industries

Application of Alloy Steel in Petrochemical Industries

Petrochemical Industries

Application of Alloy Steel in Marine Industries

Marine Industries

Application of Alloy Steel in Food Processing Industries

Food Processing Industries

Alloy Steel Application in Oil & Gas Industries

Oil & Gas Industries

Packing Of Alloy Steel P91Pipes Materials

Packing Of Alloy Steel P91 Pipes

Packing of ASTM A335 P91 Seamless Pipes

Packing of Gr P91 Alloy Steel Seamless EFW Pipes

Packing of Alloy Steel Pipes

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