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ASTM A335 P91 Seamless Alloy Steel Pipe


The astm a335 P91 pipe is a seamless Pipe meant for high temperature applications. These pipes are made from ferritic Alloy-Steel.

 Product Introduction 

The astm a335 P91 pipe is a seamless Pipe meant for high temperature applications. These pipes are made from ferritic Alloy-Steel.Chemically the a335 P91 welded pipe contains elements like Molybdenum (Mo) and Chromium added to the alloy. When Molybdenum and chromium are added to the alloy, there is an increase in the tensile strength of the sa335 grade P91 pipe. The tensile strength of the a335 grade P91 pipe is 415 Mpa, while its yield strength is 205 Mpa. The elongation percentage of the pipe ranges between 20% to 30%.Alloy Steel P91 Seamless Pipes is often referred to as excellent steel due to its increased resistance to chloride corrosion making it a very suitable material for use in salt water environments.

 

Details

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.

Standard

ASTM A335 P91, SA335 P91 (with IBR Test Certificate)

Size

1/2 NB to 36 NB

Thickness

3-12mm

Schedule

SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules

Tolerance

Cold drawn pipe: +/-0.1mmCold rolled pipe: +/-0.05mm

Craft

Cold rolled and Cold drawn

Type

Seamless / ERW / Welded / Fabricated

Length

Single Random, Double Random & Cut Length.

End

Plain End, Beveled End, Treaded

Specialized in

Large Diameter SA335 P91 Material

Additional Testing

NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.

Application

Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

 

ASTM A335 P91 Pipe Types

Out diameter

Wall thickness

Length

ASTM A335 P91 Seamless Pipe (Custom Sizes)

1/2" NB - 60" NB

SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160

Custom

ASTM A335 P91 Welded Pipe (in Stock + Custom Sizes)

1/2" NB - 24" NB

As per requirement

Custom

ASTM A335 P91 ERW Pipe (Custom Sizes)

1/2" NB - 24" NB

As per requirement

Custom

ASTM A335 High Pressure P91 Boiler Pipe

16" NB - 100" NB

As per requirement

Custom


 

Technical data

ASTM A335 P91 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

 

ASTM A335 P91 Properties

Tensile Strength , MPa

Yield Strength, MPa

Elongation, %

Hardness, HB

585 min

415 min

20 min

250 max

 

Physical Properties Of P91 Pipe

Temperature T
° C / ° F
(° C / F)


Specific heat J / kgK
(Btu / lb ° F)

Thermal conductivity
W / mK
(Btu · in / ft 2 · h · ° F)

Electrical resistance
μΩ · cm
(Ω circ / ft)

Young's modulus
kN / mm 2
(10 3 ksi)

Expansion coefficient from 20 ° C to T
10 -6 / K
(10 -6 / ° F)

20/68

460 (-)

26 (-)

 

218 (-)

 

200/392

 

 

 

207 (-)

11.3 (-)

400/752

 

 

 

190 (-)

12.0 (-)

500/932

 

30 (-)

 

 

12.3 (-)

600/1112

 

 

 

 

12.6 (-)

650/1202

 

 

 

162 (-)

12.7 (-)

 

temperature

0.2% proof stress
at higher temperatures

° C / ° F

Rp 0.2

 

Mpa / ksi

100/212

410 / 59.4

200/392

380 / 55,1

300/572

360 / 52,2

400/752

340 / 49,3

500/932

300 / 43.5

600/1112

215 / 31,1

Our Workshop

Our Packing

Why choose us

1. We're Professional Supplier.  
2. More than 10 years exprience, especially in steel .
3. Export  middle East, Africa ,Brazil , Russia , Singapore and other countries or areas.
4. Strict Quality Control and Inspection in every process.
5.Quick response to your inquiry. Timely communication and feedback.
6. Samples could be provided.
7. Excellent production technology.

8. Strong production capacity. Fast delivery capacity. Quick supply capacity. 

FAQ

1. Are you Manufacturer or trading company?
    We are professional manufacturer in steel industry for many years. 
    We can give you the factory price directly.
2. Could you provide the samples?
     Sure,you can contact us directly to discuss the details.
3. What is your MQO?
     1tons.
4. Do you have stockist goods?
     Yes, we have warehouse in China.
     You can send me the sizes you need , let me check it for you.

Keywords: ASTM A335 P91 Seamless Alloy Steel Pipe

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