ASTM A335 P91 Pipe, UNS K91560 Pipes/ Seamless Pipes

ASME SA 335 Grade P91/ ASTM A335 Grade P91 Alloy Steel Seamless Pipes Manufacturers, Exporters, Stockists & Suppliers.

ASTM A335 P91 Alloy Pipe, astm 335 grade p91 seamless pipes/ ASTM A335 gr P91 Pipes Stockiest, Manufacturer, Exporter & suppliers

ANSI B 36.10, ASTM A335 gr P91Alloy Steel Gr. P91 Seamless Round, Square, Rectangular, Hydraulic Pipes Suppliers and Stockists in India.

P91 pipe, ASTM A335 P91 pipe, a335 grade p91 alloy steel pipe Suppliers, Exporter, Manufacturer & Stockiest in India

ASTM A335 ASME SA 335 UNS K91560 P91 Alloy Steel Seamless Pipes

Amardeep steel center is leading Manufacturers, Suppliers, Stockiest and Exporters of ASTM A335 P91 Alloy Steel Seamless Pipes . These seamless pipe is used mainly for for High-Temperature Service. 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. Amardeep Steel Centre specializes in ASTM A335 UNS K91560, ASME SA 335 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. Amardeep Steel Centre has export high quality Stainless Steel 904L Works off Nr. 1.4539, Stainless Steel UNS N08904 Pipes, Plates & Tubes to customers throughout the worldwide. P91 pipes are available in different size, specification, grades & thikness as per the clients requirements.

Specification :

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

UNS K91560 Pipes/ Seamless Pipes Mechanical Properties :

 

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

ASTM A335 P91 Alloy Steel Seamless Pipes 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]

A335 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

 

Seamless Pipe/ Steel 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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