Incoloy 825 Pipes

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Incoloy 825 pipe is a nickel-iron-chromium alloy pipe with added molybdenum, copper, and titanium. It's built for strong corrosion resistance in both reducing and oxidizing environments. This makes it a solid choice for industries handling sulfuric and phosphoric acids. It resists pitting, crevice corrosion, and stress-corrosion cracking. With a carbon limit of 0.05% the chemical composition consists of titanium (0.6–1.2%), copper (19.5–3.0%), and chromium (22.0–23.5%). With a minimum elongation of 30%, it provides a tensile strength of 550 MPa and a yield strength of 220 MPa. Preston Pipes and Alloys provides premium Incoloy 825 pipe which has outstanding durability and mechanical performance for demanding applications.


Incoloy 825 pipe offers dependable performance in corrosive and high-temperature environments. It easily manages harsh chemicals and acidic environments. Its strength at high temperatures makes it reliable for systems under heat and pressure. The material is easy to weld and shape, adding flexibility during fabrication. You’ll see this alloy in chemical processing for fertilizer and acid-handling units. In the oil and gas field, it works well in sour gas wells and marine exhausts. Nuclear plants trust it for reprocessing and waste handling. Offshore structures and marine equipment benefit from its seawater resistance. Because of its cleanliness and resistance to corrosion it is also utilized in pressure vessels, heat exchangers, and food processing.


Incoloy 825 Pipes

Incoloy 825 pipe comes in both seamless and welded forms. Seamless pipe sizes range from 4mm to 219mm in diameter and 0.5mm to 20mm in thickness. The range of welded pipes is 5.0mm to 1219.2mm. For accurate sizing and finishing, seamless pipes are created by hot working (extrusion, piercing) and then cold working. Annealing, pickling, and polishing are examples of finishing techniques. Incoloy 825 sheet or plate is the starting point for welded pipes. Electric arc welding is used to join edges with filler metal. To improve durability and appearance the pipes undergo surface finishing and heat treatment after welding.


Before delivery, each Incoloy 825 pipe is subjected to stringent quality inspections. The testing is guided by industry standards such as ASTM B423, B775 and B705. Pipes can have plain, beveled, or threaded ends and come in single, double random, or custom lengths. PE fabric bundles, steel-strapped bundles, plastic wraps, and export-quality wooden boxes are among the available packaging options. Grade, size, wall thickness, heat number and manufacturing method are all clearly marked on each pipe. Being a reputable supplier of Incoloy 825 pipe, we guarantee prompt delivery, precise specifications and constant quality at a price that is competitive.

Specification of ASTM B423 UNS N08825 Pipes

Standard ASTM B407, ASTM B163, ASTM B358, ASTM B515, ASME SB407, ASME SB163, ASME SB358, ASME SB 515
Size 15 NB to 150 NB IN
Length Single Random, Double Random & Cut Length.
Type Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form Round, Square, Rectangular, Hydraulic Etc
End Plain End, Beveled End, Treaded

Nickel Alloy 825 Pipe Modulus Temperature Range

Temperature (°F) Young's Modulus (10³ ksi) Shear Modulus (10³ ksi) Poisson's Ratio
100 28.3 11.0 0.29
200 27.9 10.9 0.28
300 27.5 10.7 0.29
400 27.1 10.4 0.30
500 26.6 10.2 0.30
600 26.1 10.0 0.29
700 25.5 10.0 0.29
800 25.0 9.8 0.28
900 24.5 9.5 0.29
1000 24.0 9.2 0.30
1100 23.6 8.9 0.33
1200 23.0 8.6 0.34
1300 22.3 8.2 0.35
1400 21.3 7.9 0.35
1500 20.3 7.6 0.34
1600 19.5 7.3 0.34
1700 18.5 6.9 0.34
1800 17.5 6.5 0.34
Temperature (°C) Young's Modulus (GPa) Shear Modulus (GPa) Poisson's Ratio
20 196 76 0.29
100 192 75 0.28
200 187 72 0.30
300 181 70 0.29
400 174 68 0.28
500 168 65 0.29
600 162 61 0.33
700 154 57 0.35
800 142 53 0.34
900 131 49 0.34
1000 118 44 0.34

Incoloy N08825 Pipe Tensile & Yield Strength

Tensile Strength: Psi - 80,000 , MPa - 550

Yield Strength : Psi - 32,000 , MPa -220

Incoloy 825 Din 2.4858 Pipe Schedule and Wall Thickness

Nominal O.D. Inches 10s 10 40s & Std 40 80s & E.H. 80 160
1/8 .405 .049 .049 .068 .068 .095 .095
1/4 .540 .065 .065 .088 .088 .119 .119
3/8 .675 .065 .065 .091 .091 .126 .126
1/2 .840 .083 .083 .109 .109 .147 .147 .187
3/4 1.050 .083 .083 .113 .113 .154 .154 .218
1 1.315 .109 .109 .133 .133 .179 .179 .250
1 1/4 1.660 .109 .109 .140 .140 .191 .191 .250
1 1/2 1.900 .109 .109 .145 .145 .200 .200 .281
2 2.375 .109 .109 .154 .154 .218 .218 .343
2 1/2 2.875 .120 .120 .203 .203 .276 .276 .375
3 3.500 .120 .120 .216 .216 .300 .300 .437
3 1/2 4.000 .120 .120 .226 .226 .318 .318
4 4.500 .120 .120 .237 .237 .337 .337 .531
4 1/2 5.000 .247 .355
5 5.563 .134 .134 .258 .258 .375 .375 .625
6 6.625 .134 .134 .280 .280 .432 .432 .718
7 7.625 .301 .500
8 8.625 .148 .148 .322 .322 .500 .500 .906
9 9.625 .342 .500
10 10.750 .165 .165 .365 .365 .500 .593 1.125
11 11.750 .375 .500
12 12.750 .180 .180 .375 .406 .500 .687 1.312
14 14.000 .188 .250 .375 .437 .500 .750 1.406
16 16.000 .188 .250 .375 .500 .500 .843 1.593
18 18.000 .188 .250 .375 .562 .500 .937 1.781

UNS N08825 Incoloy 825 Seamless Pipe Weight Chart

NPS Outside Diameter (OD) Wall Thickness (WT) 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

825 Incoloy Pipe Pressure Rating

TUBE O.D. (IN.) WALL THICKNESS OF TUBE (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

Different Incoloy 825 Pipe Types

Incoloy UNS No 8825 Clad Pipe

Incoloy 825 Welded Pipe

2.4858 Incoloy 825 ERW Pipe

Incoloy 825 Grade EFW Pipe

Incoloy Alloy 825 Round Pipe

Incoloy 825 Square Pipe

Incoloy 825 Rectangular Pipe

Werkstoff 2.4858 Incoloy Polished Pipe

ASME SB 423 UNS N08825 Incoloy Seamless Pipe

Incoloy 825 UNS N08825 SCH 40 Seamless Pipe

Nickel Alloy 825 Schedule 5S Pipe

UNS N08825 Incoloy 825 Thin Wall Pipe

Incoloy 825 Din 2.4858 Exhaust Pipe

Incoloy 825 Custom Pipe

Incoloy N08825 Schedule 40S Seamless Pipe

2.4858 Incoloy Cold Drawn Seamless Pipe


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Top Incoloy Alloy 825 Seamless Pipe Manufacturer and supplier from Mumbai, India

Incoloy 825 Pipe Chemical Composition

Grade C Mn Si Fe S Cr Cu Ti
Alloy 825 0.05 max 1.0 max 0.5 max Balance 0.015 max 22.0 – 23.5 1.5 – 3.0 0.6 – 1.2

Equivalent Grades for 825 Incoloy UNS N08825 Pipe

Grade UNS No Old British BS Old British En Euronorm No Euronorm Name AFNOR GOST Japanese JIS
Incoloy 825 N08825 NA 16 2.4858 NiCr21Mo NFE30C20DUM ЭП703 NCF 825

Properties of DIN 2.4858 Pipe

Property Value
Density 0.294 lb/in³ / 8.14 Mg/m³
Specific Heat 0.105 Btu/lb•°F / 440 J/kg•°C
Melting Range 2500–2550 °F / 1370–1400 °C
Curie Temperature < -320 °F / < -196 °C
Permeability 1.005 at 200 oersted (15.9 kA/m)

Incoloy Alloy 825 Pipe Inspection & Test Reports

  • Mill Test Certificates with all Incoloy 825 Pipe
  • EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
  • Chemical Reports
  • Mechanical Reports
  • PMI Test Reports
  • Visual Inspection Reports
  • Third Party Inspection for Incoloy 825 Pipe
  • NABL Approved Lab Reports
  • Destructive Test Report
  • Non Destructive Test Reports
  • 100% Radiography Test Report
  • Fumigation Certificates
  • Raw Materials Certificate
  • Moisture testing
  • Heat Treatment Charts
  • Surface roughness measurement
  • HS Code Commercial Invoice
  • Laboratory Test Certificate from Govt. Approved Lab
  • Form A for Generalized System of Preferences (GSP)

Industrial Application of Incoloy 825 Pipe