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ASTM A335 Grade P91 Seamless Alloy Steel Pipe

Home ASTM A335 P91 Alloy Steel Pipe
A335 P91 Alloy Steel Pipe

Manufacturer of Material P91 Pipe according to ASME SA335, Check P91 Chrome Pipe Material Specification and Weight Chart

 

ASTM A335 P91 Pipe has two different types. There are type 1 and type 2. The type 2 is the most used. The material composition includes carbon, manganese, phosphorus, sulfur, silicon, 8% chromium and molybdenum in the major part. Multi Metals (India) is a leading manufacturer of the ASTM A335 P91 Pipe in different dimensions and shapes. There are more alloying elements in smaller quantities such as the vanadium, nitrogen, nickel, aluminum, columbium, titanium and zirconium in the composition. The pipes come under the A335 standard. But the forged or bored pipes can also come under A369.

The Material P91 Pipe is used in power generation, gas processing equipment, boilers, heaters and reheater lines and in most oil services. The welding of the pipes need preheating of the pipes. Also post baking is an optional procedure for these pipes. The material also has to be cooled below 100 degrees Celsius after welding before application. The P91 Seamless Pipe gets minimum 585MPa tensile strength and minimum 415MPa minimum yield strength from the composition of the material. The chromium and molybdenum contents are mostly responsible for the increased strength and corrosion resistance of the P91 Steel Pipe types.

They come in 1/8 inches to 24 inches in nominal bore sizes. The outer diameter and the wall thicknesses vary and they account for the schedules varying from sch20 to XXS. The wall thickness of the P91 Chrome Pipe can range from 2mm to 14mm and the length can range up to 16000mm. There are round, square, rectangular, hydraulic and other forms of the pipes with plain, beveled and threaded ends. Please feel free to contact us for more product details of the ASTM A335 Gr P91 Pipe and the pricing.

 

A335 P91 Pipe Suppliers, View Schedule Chart and updated price list of ASTM A335 Gr P91 Pipe


specification Chart of A335 P91 Alloy Steel Pipe

One of the materials that has spread through the piping and boiler industry recently is an alloy, referred to in various specifications as “T-91, “P-91, “F-91” and “Grade 91.”

  • Standard: ASTM A335, ASME SA335
  • Alloy steel relevant material: 16-50Mn, 27SiMn, 40Cr, 12-42CrMo, 16Mn12Cr1MoV, 27SiMn, 30CrMo, 15CrMo, 20G, Cr9Mo, 10CrMo910, 15Mo3, 15CrMoV, 35CrMoV, 45CrMo, 15CrMoG, 12CrMoV, 45Cr, 50Cr, 45CrNiM, P5, P9, P11, P22, P23, P91, P92, T11, T12, T22, T23, T91,T92 and so on.
  • Steel Grade: SA335 Grade P91 ASTM A335 Grade P91
  • Alloy Steel Pipes:- ASTM A335 GR P91.
  • Size Range: 1/2" - 24" 
  • Schedules: 20, 30, 40, Standard (STD), 60, Extra Heavy (XS), 80, 100, 120, 140, 160, XXS
  • Material: P91, K91560

 

P91 Material Chemical composition
  C Si Mn P S AL Cr Cu Mo N Nb Ni V
1.4903 Min% 0.08   0.30       8.0   0.85 0,030 0,060   0.18
Max % 0.12 0.50 0.60 0,020 0.005 0,040 9.50 0.30 1.05 0,070 0,100 0.30 0.25
 

All Sizes available in Alloy Steel Pipe P91 with Test Certificates, check ASTM A335 P91 Pipe Dimensions


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 (-)

 

Temp. Time 
limit
 Time 
limit
 Creep 
strength		 Creep 
strength		 Creep 
strength
Rp0.2
 10 000h 100 000h
° C N / mm 2 / ksi N / mm 2 / ksi N / mm 2 / ksi
20/68 450/65        
100/212 410 / 59.4        
300/572 360 / 52,2        
500/932 300 / 43.5   289 / 41.9 258 / 37.4  
550/1022 270 / 39.1   199 / 28,8 166 / 24.0  
600/1112 215 / 31,1   122 / 17.6 94 / 13.6  
650/1202     70 / 10,1 49 / 7,1  
ksi values ​​are calculated

 

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

 

Are you looking for ASTM A335 P91 Pipe Equivalent and yield chart, find here.

P91 Material Mechanical properties (20° C / 68° F)
Yield strength Rp0.2 (N / mm 2 ) > = 450 Normalized 
+ tempered
Yield strength Mpa / ksi 415/60 ASTM A 335 -P91
Tensile strength Rm (N / mm 2 ) 620-850 Normalized 
+ tempered
Elongation at break-A5 (%) min.lengths > = 20 Normalized 
+ tempered
Notched impact strength (J) across 40 transversely / normalized 
+ tempered
Tensile strength Rm N / mm 2 / ksi 585/85 ASTM A 335 -P91

 

   
P91 Werkstoff

Material no .: 1.4903

Description

EN material 
short name		 X10CrMoVNbN9-1
AFNOR X10CrMoVNbN9-1 (NF EN 10088-1 (06/2005) (Fri)
BS X10CrMoVNbN9-1 (EN 10088-1 (06/2005) (GB)

Density / dm 3 7.76
Hardness (HB
alloy Alloyed stainless steels
group Stainless steels 
Heat resistant steel
structure martensitic

 

ASTM A335/ASME SA335 P91 High Pressure Steel Outside Diameter & Tolerance
ASTM A450
Hot rolled
Outside Diameter, mm
Tolerance, mm
OD≤101.6
+0.4/-0.8
101.6＜OD≤190.5
+0.4/-1.2
190.5＜OD≤228.6
+0.4/-1.6
Cold Drawn
Outside Diameter, mm
Tolerance, mm
OD＜25.4
±0.10
25.4≤OD≤38.1
±0.15
38.1＜OD＜50.8
±0.20
50.8≤OD＜63.5
±0.25
63.5≤OD＜76.2
±0.30
76.2≤OD≤101.6
±0.38
101.6＜OD≤190.5
+0.38/-0.64
190.5＜OD≤228.6
+0.38/-1.14
ASTM A530 & ASTM A335
NPS
Outside Diameter, inch
Tolerance, mm
1/8≤OD≤1-1/2
±0.40
1-1/2＜OD≤4
±0.79
4＜OD≤8
+1.59/-0.79
8＜OD≤12
+2.38/-0.79
OD>12
±1%

 

P91 Material Price

P91 Material Price Comparison as per Top Manufacturers

TOP MANUFACTURERS ALLOY STEEL A335 P9 PRICE LIST
SIZE" SIZE NB V&M JSL TNRS MSL ISMT USL BAO Lontrin SMTM Wuzi
1/2
15
4,367.65
4,272.06
4,338.24
4,264.71
4,257.35
–
3,970.59
3,977.94
4,411.76
3,963.24
3/4
20
4,147.06
4,051.47
4,117.65
4,044.12
4,036.76
–
3,897.06
3,904.41
4,191.18
3,889.71
1
25
4,000.00
3,904.41
3,970.59
3,897.06
3,889.71
–
3,823.53
3,830.88
4,044.12
3,816.18
1.25
32
3,955.88
3,860.29
3,926.47
3,852.94
3,845.59
–
3,794.12
3,801.47
4,000.00
3,786.76
1.5
40
3,852.94
3,757.35
3,823.53
3,750.00
3,742.65
–
3,750.00
3,757.35
3,897.06
3,742.65
2
50
2,661.76
2,566.18
2,632.35
2,558.82
2,551.47
–
2,382.35
2,389.71
2,705.88
2,375.00
2.5
65
2,661.76
2,566.18
2,632.35
2,558.82
2,551.47
–
2,382.35
2,389.71
2,705.88
2,375.00
3
80
2,661.76
2,566.18
2,632.35
2,558.82
2,551.47
–
2,382.35
2,389.71
2,705.88
2,375.00
3.5
90
2,661.76
2,566.18
2,632.35
2,558.82
2,551.47
–
2,382.35
2,389.71
2,705.88
2,375.00
4
100
2,661.76
2,566.18
2,632.35
2,558.82
2,551.47
2,500.00
2,382.35
2,389.71
2,705.88
2,375.00
5
125
2,661.76
2,566.18
2,632.35
2,558.82
2,551.47
2,500.00
2,382.35
2,389.71
2,705.88
2,375.00
6
150
2,661.76
2,566.18
2,632.35
2,558.82
2,551.47
2,500.00
2,382.35
2,389.71
2,705.88
2,375.00
8
200
2,661.76
2,566.18
2,632.35
2,558.82
2,551.47
2,500.00
2,411.76
2,419.12
2,705.88
2,404.41
10
250
2,661.76
–
2,632.35
2,558.82
2,551.47
2,500.00
2,411.76
2,419.12
2,705.88
2,404.41
12
300
2,720.59
–
2,691.18
2,617.65
–
2,500.00
2,411.76
2,419.12
2,764.71
2,404.41
14
350
2,720.59
–
2,691.18
2,617.65
–
2,500.00
2,426.47
2,433.82
2,764.71
2,419.12
16
400
2,750.00
–
2,720.59
2,647.06
–
–
2,426.47
2,433.82
2,794.12
2,419.12
18
450
2,750.00
–
2,720.59
2,647.06
–
–
2,441.18
2,448.53
2,794.12
2,433.82
20
500
2,750.00
–
2,720.59
2,647.06
–
–
2,441.18
2,448.53
2,794.12
2,433.82
22
550
2,897.06
–
2,794.12
–
–
–
2,470.59
2,477.94
2,941.18
2,463.24
24
600
2,897.06
–
2,794.12
–
–
–
2,470.59
2,477.94
2,941.18
2,463.24

All Above P91 Material Prices are in USD/Ton
Additional Cost
Hot Dip Galvanising Cost 400$/Tons
Double Random Length Cost: 2% Extra
3LPE 300$/tons
Fix length Cost: 5% Extra
Inspection 2% Extra
MOQ- Minimum Order Quantity 20 Ton per size.

 

Most Popular Types of P91 Material Pipe
ASTM A335 P91 Seamless Pipe
ASTM A335 P91
Seamless Pipe
ASTM A335 P91 Alloy Steel Seamless Pipe
ASTM A335 P91 Alloy Steel
Seamless Pipe
Grade P91 Seamless Pipe
Grade P91 Seamless Pipe
ASTM A335 P91 Welded Pipe
ASTM A335 P91 Welded Pipe
Alloy Steel P91 Welded Pipe
Alloy Steel P91 Welded Pipe
Grade P91 Alloy Steel Welded Piping
Grade P91 Alloy Steel Welded Piping
ASTM A335 P91 ERW Pipe
ASTM A335 P91 ERW Pipe
Alloy Steel P91 ERW Pipe
Alloy Steel P91 ERW Pipe
SA335 P91 ERW Pipe
SA335 P91 ERW Pipe
P91 Chrome Moly Pipe
P91 Chrome Moly Pipe
ASTM A335 P91 High pressure boiler pipes
ASTM A335 P91 High pressure
boiler pipes
ASTM A335 Grade P91 NACE Pipe
ASTM A335 Grade P91 NACE Pipe

 

ASTM A335 P91 Alloy Steel End User
  • power generation, and other high temperature services
  • petroleum
  • boiler replacement and repair

 

Are you looking for P91 Steel Pipe in specific size? Check out our inventory of A335 P91 Pipe

 

P91 Material Temperature Notes
application
Operating temperature -10 ºC to 650 ºC  Wall temperature in continuous operation

hardening
working temperature 1040 ºC to 1100 ºC 
Explanation / supplement OIL
processing instructions Observe DIN EN 10028-2 (09/2009)

hot forming
working temperature 1100 ºC to 1150 ºC 
Explanation / supplement slow cooling air
processing instructions After thermoforming, a diet treatment

normalizing
working temperature 1040 ºC to 1100 ºC 

start
working temperature 730 ºC to 780 ºC 
Explanation / supplement <= 1h

 

P91 Material Welding Procedure

P91 Material Welding Procedure

 

alloy steel Pipe available Grades