ASTM A335 / ASME SA335 P91 Alloy Steel Seamless Pipes

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ASTM A335 Alloy Steel P91 Seamless Pipes

Amardeep steel center is leading Manufacturers, Suppliers, Stockiest and Exporters of ASTM A335 P91 Alloy Steel Seamless Pipes. These ASME SA335 T91 SMLS Pipe is used mainly for for High-Temperature Service. Alloy Steel P91 EFW Pipes is an austenitic compound, where elastic and creep strength can be improved by chilly working. These pipes are widely used in different various application such as oil & gas, power plants, ship building, heavy engineering industries etc. All products are industry-standard conforming to or exceeding API, ASTM, ASME, ANSI and other national and international standards. Sulphur chlorinated, water – based cutting fluids work successfully when machining Alloy Steel P91 Seamless Pipes. Does not respond to customary aging treatments, but strain aging at relatively low temperatures (700 Degree F – 1100 Degree F) can improve creep and rupture strength when these Alloy Steel P91 Welded Pipes is in service at temperatures under 1300 Degree F. Peruse our immense choice of high-temperature sheet load of these Alloy Steel P91 ERW Pipes or reach out to proficient for a customized quote on your next high temp sheet request. Like other nickel compounds, Alloy Steel P91 Round Pipes is malleable, simple to frame and weld, and has excellent protection from stress consumption breaking in chloride–bearing arrangements (a type of corruption to which the austenitic treated steels are inclined). Amardeep Steel Centre specializes in ASTM A335 / ASME SA335 Grade P91 Alloy Steel Seamless Pipes, ANSI B 36.10, Alloy Steel Gr P91 Seamless Round, P91 Pipe, Square, Rectangular, Hydraulic pipes With years of experience in exporting. These Alloy Steel P91 Square Pipes might be machined utilizing regular strategies, yet cobalt evaluations of high–speed steel or carbide apparatuses joined with unbending machine arrangements are suggested, as are positive feeds. Strengthened material will frame long, tacky chips in a general frame, whereas Alloy Steel P91 Rectangular Pipes that has had a level of cold work will machine all the more without any problem.

Specification Of SA335 P91 Pipe:

Size : 1/8NB TO 24NB IN
Standards : ASTM A335, ASME SA335, UNS K91560
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.

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ASTM A335 Grade P91 Alloy Steel Pipe Chemical Compositions :

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

Alloy Steel P91 Seamless Pipes Mechanical Properties :

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

SA335 P91 Alloy Steel Pipe 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]

SA335 P91 Pipe 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

 

Alloy Steel P91 Seamless Pipe Wall Thickness :

NPS [DN] Designator Tolerance, % from Specified
Over Under
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios 20.0% 12.5%
Above 2 1/2  [65], t/D < or = 5% 22.5% 12.5%
Above 2 1/2  [65], t/D > 5% 15.0% 12.5%
(t = Specified Wall Thickness; D = Specified Outside   Diameter)

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