ASTM A335 P22 Alloy Steel Seamless Pipe

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ASTM A335 P22 Alloy Steel Seamless Pipes

ASTM A335 P22 pipe specifications include seamless "chromium-molybdenum" alloy steel pipes and alloy steel pipes. Chromium is an important compound in stainless steel. Any steel containing 12% or more chromium is considered stainless steel. Unparalleled chromium resists oxidation at high temperatures. It will significantly improve traction, performance, and toughness at room temperature, which is why the A335 alloy steel pipe makes it an ideal choice for power plants, refineries, petrochemical plants, and oilfield services, where fluids and gases are transported at high temperatures and pressures. These P22 alloy steel pipes are provided with black paint, anti-corrosion oil, and galvanized surface treatment according to consumer requirements. This alloy is known for its tensile strength, corrosion resistance, high-temperature resistance, and cost-effectiveness because it is used in power generation, oil refineries, and petrochemical applications. The petrochemical industry and factories. A335 P22 alloy steel pipe is usually suitable for bending, flanging, and other related forming operations and fusion welding. ASTM A335 P22 UNS K21590 is a molybdenum-chromium alloy steel part suitable for bending, crimping, and similar forming operations, as well as fusion welding procedures.

Specification of ASTM A335 P22 Alloy Steel Seamless Pipe

Size : 1/8NB TO 24NB IN
Standards : ASTM A 335, ASME SA 335
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.

Chemical Compositions of ASTM A335 P22 Alloy Steel Seamless Pipe

C, % Mn, % P, % S, % Si, % Cr, % Mo, %
0.015 max 0.30-0.61 0.025 max 0.025 max 0.50 max 1.90-2.60 0.87-1.13

Mechanical Properties of ASTM A335 P22 Alloy Steel Seamless Pipe

Tensile Strength, MPa Yield Strength, MPa Elongation, %
415 min 205 min 30 min

Heat Treatment Requirements :

 

 

P5, P9, P11, and P22

 

 

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]

P22

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]

Tensile Requirements of ASTM A335 P22 Alloy Steel Seamless Pipe

 

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

 

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