SA 335 P91 Seamless Pipe & Alloy Steel P91 Chrome Pipes Supplier

NACE certified P91 alloy steel welded pipes and ASTM A335 P91 Seamless Pipe at low Price

ASTM A335 P91 Pipe

ASTM A335 P91 Pipe

ASTM A335 Grade P91 Alloy Steel Seamless Pipe

ASTM A335 Grade P91 Alloy Steel Seamless Pipe

P91 Chrome Moly Pipe

P91 Chrome Moly Pipe

Standard Specification Of ASTM A335 P91 Pipe

Size in Inch 1/8NB TO 24NB inch
ASTM Standards ASTM A 335, and ASME SA 335
Type Seamless Pipe
Specialized in Size Large Diameter Size
Outer Dimensions Chart 19.05milimeter - 114.3milimeter
Wall Thickness Chart 2.0milimeter - 14 milimeter
Length in milimeter max 16000milimeter
Schedule Chart Schedule 20 - XXS up to 250 milimeter thk.
Pipe Form Round, Rectangular, Square, Hydraulic Etc.
Length Single, Double Random & Cut to Length.
Pipe & Tube End Plain, Beveled, Treaded.

Types of ASTM A335 Grade P91 Alloy Steel Seamless Pipe

Astm A335 p91 8 Inch Alloy Steel Pipe

Astm A335 p91 8 Inch Alloy Steel Pipe

4 Inch Schedule 40 Alloy ASTM A335 p91 Seamless Steel Pipe

4 Inch Schedule 40 Alloy ASTM A335 p91 Seamless Steel Pipe

3

3" SCH80 ASTM a335 p91 material alloy pipe

ASTM A335 p91 material seamless alloy steel pipe

ASTM A335 p91 material seamless alloy steel pipe

ASME SA335 p91 24 inch hot rolled seamless steel pipe

ASME SA335 p91 24 inch hot rolled seamless steel pipe

73mm grade astm a335 p91 carbon steel seamless pipe

73mm grade astm a335 p91 carbon steel seamless pipe

8 inch Alloy steel pipe A335 Gr.p91

8 inch Alloy steel pipe A335 Gr.p91

ASTM A335 14 Inch p91 Sch160 Alloy Steel Pipe

ASTM A335 14 Inch p91 Sch160 Alloy Steel Pipe

Astm a335 p91 sch std seamless steel pipe

Astm a335 p91 sch std seamless steel pipe

Stockist of ASTM A335 Gr P91 Welded Pipe, ASME SA335 Grade P91 ERW Pipes Sizes

Sizes of P91 Chrome Moly Pipe

ASTM A335 P91 Pipe OD
mm
Pipe WT
mm
in. Sch Kg/m
13.72 1.65 1/4 10S 0.50
13.72 2.24 1/4 40S 0.64
13.72 3.02 1/4 80S 0.81
17.15 1.65 3/8 10S 0.64
17.15 2.31 3/8 40S 0.86
17.15 3.20 3/8 80S 1.12
21.34 2.11 1/2 10S 1.02
21.34 2.77 1/2 40S 1.29
21.34 3.73 1/2 80S 1.65
26.67 2.11 3/4 10S 1.30
26.67 2.87 3/4 40S 1.71
26.67 3.91 3/4 80S 2.23
33.40 2.77 1 10S 2.13
33.40 3.38 1 40S 2.54
33.40 4.55 1 80S 3.29
33.40 6.352) 1 160 4.30
42.16 2.77 10S 2.73
42.16 3.56 40S 3.44
42.16 4.85 80S 4.53
42.16 6.352) 160 5.69
48.26 2.77 10S 3.16
48.26 3.68 40S 4.11
48.26 5.08 80S 5.49
60.33 2.77 2 10S 3.99
60.33 3.91 2 40S 5.52
60.33 5.54 2 80S 7.60
60.33 8.742) 2 160 11.29
73.03 3.05 10S 5.35
73.03 5.16 40S 8.77
73.03 7.01 80S 11.59
88.90 3.05 3 10S 6.56
88.90 5.49 3 40S 11.47
88.90 7.62 3 80S 15.51
88.90 11.132) 3 160 21.67
101.60 3.05 10S 7.53
101.60 5.74 40S 13.78
101.60 8.08 80S 18.92
114.30 3.05 4 10S 8.50
114.30 6.02 4 40S 16.32
114.30 8.56 4 80S 22.67
114.30 13.492) 4 160 34.05
141.30 6.55 5 40S 22.10
141.30 9.53 5 80S 31.44
141.30 15.882) 5 160 49.87
168.28 3.4 6 10S 14.04
168.28 7.11 6 40S 28.69
168.28 10.97 6 80S 43.21
168.28 14.27 6 120 54.75
168.28 18.262) 6 160 68.59
219.08 8.18 8 40S 43.20
219.08 12.7 8 80S 65.63
219.08 18.23 8 120 91.30
219.08 23.012) 8 160 112.97

Weight of ASTM A335 P91 Alloy Steel Pipe

NPS Outside Diameter Wall Thickness Weight Weight
in mm in mm Sched kg/Mtr Lb/ft
1/2″ 0.840 21 0.109 2.769 40 STD 1.268 0.851
0.147 3.734 80 STD 1.621 1.088
3/4″ 1.050 27 0.113 2.870 40 STD 1.684 1.131
0.154 3.912 80 STD 2.195 1.474
1″ 1.315 33 0.133 3.378 40 STD 2.501 1.679
0.179 4.547 80 STD 3.325 2.172
1 1/4″ 1.660 42 0.140 3.556 40 STD 3.385 2.273
0.191 4.851 80 STD 4.464 2.997
1 1/2″ 1.900 48 0.145 3.683 40 STD 4.048 2.718
0.200 5.080 80 STD 5.409 3.361
2″ 2.375 60 0.154 3.912 40 STD 5.441 3.653
0.218 5.537 80 STD 7.480 5.022
2 1/2″ 2.875 73 0.203 5.516 40 STD 8.629 5.793
0.276 7.010 80 STD 11.411 7.661
3″ 3.500 89 0.216 5.486 40 STD 11.284 7.576
0.300 7.620 80 STD 15.272 10.253
4″ 4.500 114 0.237 6.020 16.073 10.790
0.337 8.560 22.318 14.983
6″ 6.625 168 0.188 4.775 19.252 12.924
0.203 5.516 20.739 13.923
0.219 5.563 22.318 14.983
0.250 6.350 25.354 17.021
0.280 7.112 40 STD 58.263 18.974
0.312 7.925 31.334 21.036
0.375 9.525 37.285 25.031
0.432 10.973 80 XHY 42.561 28.573
0.500 12.700 48.719 32.708
8″ 8.625 219 0.188 4.775 25.233 16.940
0.203 5.156 27.198 18.259
0.219 5.563 29.286 19.661
0.250 6.350 20 33.308 22.361
0.277 7.036 30 36.786 24.696
0.322 8.179 40 42.352 28.554
0.375 9.525 49.216 33.041
0.406 10.312 60 53.085 35.638
0.500 12.700 80 XHY 64.627 43.388
10″ 10.750 273 0.188 4.775 31.588 21.207
0.219 5.563 36.689 24.631
0.250 6.350 20 41.759 28.035
0.307 7.798 30 51.002 34.240
0.344 8.738 56.946 38.231
0.365 9.271 40 STD 63.301 40.483
0.438 11.125 71.852 48.238
0.500 12.700 60 XHY 81.530 54.735
0.594 15.088 80 95.969 64.429
12″ 12.750 324 0.188 4.775 37.570 25.222
0.219 5.563 43.657 29.309
0.250 6.350 49.713 33.375
0.281 7.137 55.739 37.420
0.312 7.925 61.735 41.445
0.375 9.525 73.824 49.562
0.406 10.312 79.727 53.525
0.500 12.700 97.438 65.415
0.562 14.275 108.966 73.154
14″ 14.000 356 0.188 4.775 41.308 27.732
0.219 5.563 48.012 32.233
0.250 6.350 20 54.685 36.713
0.281 7.137 61.327 41.172
0.312 7.925 67.939 45.611
0.375 9.525 STD 81.281 54.568
0.438 11.125 40 94.498 63.441
0.500 12.700 XHY 107.381 72.090
0.625 15.875 132.983 89.278
16” 16.000 406 0.188 4.775 47.290 21.748
0.219 5.563 54.980 36.910
0.250 6.350 10 62.639 42.053
0.281 7.137 70.268 47.174
0.312 7.925 20 77.866 52.275
0.344 8.738 85.677 57.519
0.375 9.525

30

STD

93.213 62.578
0.438 11.125 108.433 72.797
0.500 12.700

40

XHY

123.289 82.770
18″ 18.000 457 0.219 5.563 61.948 41.588
0.250 6.350 70.593 47.393
0.281 7.137 79.208 53.176
0.312 7.925 20 87.792 58.939
0.375 9.525 STD 105.144 70.588
0.438 11.125 30 122.369 82.152
0.500 12.700 XHY 139.198 93.450
0.562 14.275 40 155.904 104.666
0.625 15.875 172.754 115.978
20″ 20.000 508 0.250 6.350 78.547 52.733
0.282 7.163 88.458 59.386
0.312 7.925 97.719 65.604
0.375 9.525 20 STD 117.075 78.598
0.438 11.125 136.305 91.508
0.500 12.700 30 XHY 155.106 104.130
0.594 15.088 40 183.378 123.110
0.625 15.875 192.640 129.328
0.688 17.475 211.368 141.901
24″ 24.000 610 0.250 6.350 94.456 63.413
0.281 7.137 106.029 71.183
0.312 7.925 117.573 18.932
0.375 9.525 20 STD 140.938 64.618
0.438 11.125 164.176 110.219
0.500 12.700 XHY 186.923 125.490
0.625 15.875 232.410 156.028
0.688 17.475 40 255.148 171.293
0.750 19.050 277.401 186.233
30″ 30.000 762 0.250 6.350 118.318 79.433
0.281 7.137 132.851 89.189
0.312 7.925 10 147.353 98.925
0.375 9.525 STD 176.731 118.648
0.438 11.125 205.983 138.286
0.500 12.700 20 XHY 234.647 157.530
0.625 15.875 30 292.066 196.078
0.688 17.475 320.817 215.380
0.750 19.050 348.988 234.293
36″ 36.000 914 0.250 6.350 142.180 95.453
0.281 7.137 159.672 107.196
0.312 7.925 10 177.133 118.918
0.375 9.525 STD 215.525 142.678
0.438 11.125 247.790 166.353
0.500 12.700 20 XHY 282.372 198.570
0.625 15.875 351.723 236.128

0.688

17.475 386.487 259.467

0.750

19.050 420.576 282.353
42″ 42.000 1067 0.312 7.925 206.914 138.911
0.375 9.525 STD 248.319 166.708
0.500 12.700 XHY 33.097 221.610
0.750 19.050 492.163 330.413
48″ 48.000 1219 0.375 9.525 STD 284.112 190.738
0.438 11.125 331.404 222.487
0.500 12.700 XHY 377.822 253.650
0.750 19.050 563.750 378.473
0.875 22.225 655.969 440.383

Schedule Chart of P91 Pipe

1/8" IPS(.405" O.D.) 3 1/2" IPS( 4.000" O.D.)
SCH 40, 80 SCH 10, 40, 80, 160, XXH
1/4" IPS(.540" O.D.) 4" IPS(4.500" O.D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
3/8" IPS(.675" O.D.) 5" IPS( 5.563" O.D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
1/2" IPS(.840" O.D.) 6" IPS(6.625" O.D.)
SCH 5, 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
3/4" IPS(1.050" O.D.) 8 ” IPS(8.625" O.D.)
SCH 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
1" IPS:(1.315′ O.D.) 10" IPS(10.750" O.D.)
SCH 5, 10, 40, 80, 160, XXH SCH 10, 20, 40, 80 (.500), TRUE 80(.500)
1-1/4" IPS(1.660" O.D.) 12" IPS(12.750" O.D.)
SCH 10, 40, 80, 160, XXH SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500)
1-1/2" IPS(1.900" O.D.) 14" IPS(14.000" O.D.)
SCH 10, 40, 80, 160, XXH SCH10 (.188), SCH40 (.375)
2" IPS(2.375" O.D.) 16" IPS(16.000" O.D.)
SCH 10, 40, 80, 160, XXH SCH10(.188), SCH40(.375)
2 1/2" IPS(2.875" O.D.) 18" IPS (18.000" O.D.)
SCH 10, 40, 80, 160, XXH SCH-40 (.375)
3" IPS( 3.500" O.D.)
SCH 5, 10, 40, 80, 160, XXH

P91 Welded Pipe Pressure Rating

Pipe O.D.
(in.)
Wall Thickness of Pipe (inches)
.028 .035 .049 .065 .083 .095 .109 .120
Working Pressure (psig)
1/8 7900 10100            
1/4 3700 4800 7000 9500        
5/16   3700 5400 7300        
3/8   3100 4400 6100        
1/2   2300 3200 4400        
3/4     2200 3000 4000 4600    
1       2200 2900 3400 3900 4300

AS P91 Chrome Pipe Composition Chart

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 Alloy Boiler Pipes Mechanical Strength

Tensile Strength , MPa A335 P91 Yield Strength, MPa Elongation, % A335 P91 Hardness, HB
585 min 415 min 20 min 250 max

Equivalent of ASME SA335 P91 Pipe

ASTM ASME A335 Gr P91 Equivalent Material JIS UNS
A335 P91 SA335 P91 T91, K90901, X10CrMoVNb9-1, 1.4903 G 3458 K91560

Heat Treatment of Alloy Steel P91 ERW Pipe

P5, P9, P11, and P22
Grade Chet Heat Treatment Type Normalize Temp Range F [C] Annealing and Tempering Temp Range F [C]
P5 (b,c) Isothermal or Full Anneal
Temper and Normalize ***** 1250 [675]
Subcritical Anneal (P5c only) ***** 1325 - 1375 [715 - 745]
P9 Isothermal or Full Anneal
Temper and Normalize< ***** 1250 [675]
P11 Isothermal or Full Anneal
Temper and Normalize ***** 1200 [650]
P22 Isothermal or Full Anneal
Temper and Normalize ***** 1250 [675]
P91 Temper and Normalize 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
Temper and Quench 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
Check ASME SA335 Grade P91 Alloy Steel Seamless Pipe Physical Properties

A335 P91 material Properties

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 (-)

Schedule 40 P91 Seamless Pipe Creep Properties

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
View ASTM A335 Grade P91 Chrome Moly Alloy Pipe, P91 Heat exchanger, Boiler Tubes Updated price List

AS P91 Heat Exchanger Pipe Price List

Size MSL Make ISMT make JSL Make
1/2" 4,265.71 4,253.35 4,27.06
3/4" 4,04.12 4,036.76 4,051.47
1" 3,897.06 3,889.71 3,904.41
1.25" 3,852.94 3,845.59 3,860.29
1.5" 3,750.00 3,742.65 3,757.35