ASTM A335 P91 Alloy Steel Pipe suppliers

Supplier of ASTM A335/ASME SA 335 P5, P9, P11, P22, P91 Seamless Pipes, Tubes , A200 T91, X12CrMo91 1.7386 3059/2

We stock & supply 1. ASTM A335 P91 Alloy Steel Pipe for Oil and Gas Pipeline
2. ASTM A335 P91 Alloy Steel Pipe for Chemical Industry
3. ASTM A335 P91 Alloy Steel Pipe Pipe Bend for Plumbing
4. ASTM A335 P91 Alloy Steel Pipe for Heating
5. ASTM A335 P91 Alloy Steel Pipe for Water Supply Systems

alloy-steel-astm-a335-p9-pipe

ASTM A335 P9 Alloy Steel Pipe

Specification :
Size : 1/8NB TO 24NB IN
Standards : ASTM A 335, ASME SA 335, ANSI B36.10
Type : Seamless
Specialized in : Large Diameter Size
Wall Thickness : 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.

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 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 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]

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

 

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)
Types Of Alloy Steel ASTM a335 p5 70/30 Pipes & Tubes :
•   Alloy Steel P5 Seamless Pipes & Tubes
•   Alloy Steel P5 Welded Pipes & Tubes 
•   Alloy Steel P5 Erw Pipes & Tubes
•   Alloy Steel P5 Efw Pipes & Tubes
•   Alloy Steel P5 Fabricated Pipes & Tubes
•   Alloy Steel P5 Square Pipes & Tubes
•   Alloy Steel P5 Rectangular Pipes & Tubes
•   Alloy Steel P5 Round Pipes & Tubes
•   Alloy Steel P5 High Pressure Pipes & Tubes