Short Description

Model No.: Incoloy-825-Straight-Tee-DN250-SCH120

China Tee Manufacturer www.ugsteelmill.com offers ASME B16.9 ASTM B366 Incoloy 825 Straight Tee,DN250,SCH120.

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Key Specifications / Features

Type: Incoloy 825 Straight Tee
Material: UNS NO8825 (Incoloy 825)
Size: 10″ (DN250)
WT: SCH120
Standard: ASME B16.9

Incoloy Alloy 825 (UNS N08825) Chemical Composition, %

Ni Fe Cr Mb Cu Ti C Mn S Si Al
38.0-46.0 22.0 min 19.5-23.5 2.5-3.5 1.5-3.0 .6-1.2 0.05 max 1.0 max 0.03 max 0.5 max 0.2 max

What is Incoloy 825

Designated as UNS N08825 or DIN W.Nr. 2.4858, Incoloy 825 (also known as “Alloy 825”) is an iron-nickel-chromium alloy with additions of molybdenum, cooper and titanium. The molybdenum addition improves its resistance to pitting corrosion in aqueous corrosion application while copper content bestows resistance to sulfuric acid. Titanium is added for stabilization. The Alloy 825 has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. It is especially resistant to sulfuric and phosphoric acids. Incoloy 825 alloy is mainly used for chemical processing, petrochemical piping, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.

20210603080314 32231 - ASME B16.9 ASTM B366 Incoloy 825 Straight Tee DN250 SCH120

Pipe Tee Dimensions – Standard Equal Tee/Straight Tee

Nominal Size Outside Diameter at Bevel Center to End
DN NPS OD C M
15 1/2 21.3 25 25
20 3/4 26.7 29 29
25 1 33.4 38 38
32 1 1/4 42.2 48 48
40 1 1/2 48.3 57 57
50 2 60.3 64 64
65 2 1/2 73 76 76
80 3 88.9 86 86
125 5 141.3 124 124
150 6 168.3 143 143
200 8 219.1 178 178
250 10 273 216 216
300 12 323.8 254 254
350 14 355.6 279 279
400 16 406.4 305 305
450 18 457 343 343
500 20 508 381 381
550 22 559 419 419
600 24 610 432 432
650 26 660 495 495
700 28 711 521 521
750 30 762 559 559
800 32 813 597 597
850 34 864 635 635
900 36 914 673 673
950 38 965 711 711
1000 40 1016 749 749
1050 42 1067 762 711
1100 44 1118 813 762
1150 46 1168 851 800
1200 48 1219 889 838
1300 52 1321 965 914
1400 56 1422 1041 965
1500 60 1524 1118 1016
1600 64 1626 1194 1092
1700 68 1727 1270 1168
1800 72 1829 1320 1245
1900 76 1930 1422 1320
2000 80 2032 1499 1397

What is Formula of Equal Tee Weight

20210603080348 68214 - ASME B16.9 ASTM B366 Incoloy 825 Straight Tee DN250 SCH120

When purchasing butt-welded pipe fittings, you need to calculate the weight of butt-welded tees to check land and sea transportation costs. How many trucks and containers do we need? How do you get weight, you might ask? Now we’re going to show you two ways.
The first method is to calculate the weight of equal diameter tee of butt weld by formula. Honestly, this is probably the most basic and unique approach. See below.

The formula is:  0.02466*(S+1.5)*[D-(S+1.5)]*(3C-D/2)/1000

  • S= Wall Thickness in mm
  • D= Outside Diameter in mm
  • C= Length*[Out Diameter-(Thickness+2)]*(Thickness*2)*0.02466*Length, the unit is mm.

20210603080928 38950 - ASME B16.9 ASTM B366 Incoloy 825 Straight Tee DN250 SCH120

It is very complex and requires many specific values to evaluate. Without a detailed size table, it is difficult to calculate the weight of butt welding tees.
To make your job easy and comfortable, we will provide you with values.

Datasheet for Buttweld Tee Weight Calculation

DN NPS Series A Series B C M
15 1/2 21.3 18 25 25
20 3/4 26.9 25 29 29
25 1 33.7 32 38 38
32 1 1/4 42.4 38 48 48
40 1 1/2 48.3 45 57 57
50 2 60.3 57 64 64
65 2 1/2 73 76 76 76
80 3 88.9 89 86 86
90 3 1/2 101.6 95 95
100 4 114.3 108 105 105
125 5 141.3 133 124 124
150 6 168.3 159 143 143
200 8 219.1 219 178 178
250 10 273 273 216 216
300 12 323.9 325 254 254
350 14 355.6 377 279 279
400 16 406.4 426 305 305
450 18 457 480 343 343
500 20 508 530 381 381
550 22 559 419 419
600 24 610 630 432 432

Equal Tee Weight Calculation by Chart

The second way is to use a graph. It’s as simple as using a calculator, the only drawback is that you can only get a certain size of weight. But it is more useful than we thought because even butt-welded tees have a large size range and the regular sizes are included in the diagram. Weight can be easily and quickly obtained based on wall thickness and diameter.

Buttweld Equal Tee Weight Chart

DN NPS STD 40 XS 80 160 XXS
15  1/2 0.21 0.2 0.2 0.2
20  3/4 0.2 0.2 0.3 0.3
25 1 0.3 0.3 0.5 0.5
32 1 1/4 0.6 0.6 0.7 0.7
40 1 1/2 0.9 0.9 1.3 1.3 1.5 1.3
50 2 1.5 1.5 2.2 2.2 2.7 3.4
65 2 1/2 2.7 2.7 3.0 3.0 3.1 3.8
80 3 3.8 3.8 4.4 4.4 5.6 6.1
90 3 1/2 4.6 4.6 5.9 5.9
100 4 6.5 6.5 7.7 7.7 10.2 12.9
125 5 9.7 9.7 13.5 13.5 19.8 25.7
150 6 14 14 19.3 19.3 34 30.6
200 8 24.5 24.5 34.5 34.5 50 47.7
250 10 41.3 41.3 58.4 67.5 111.2 84.7
300 12 65 69 76.5 105 158 129
350 14 83 96 104 142 232
400 16 110 120 120 187 335
450 18 132 170 159 263 564
500 20 168 240 192 356 756
550 22 185 209 416 1002
600 24 222 345 251 548 1215

What is Export Package for Pipe Fittings?

  • Blasting and Painting on pipe fittings.
  • Wrapping them with plastic foam.
  • Packing them into wooden case or pallet.
  • Stick shipping mark on the outside of wooden case

How to Guarantee the Quality of Incoloy 825 Straight Tee?

  • Visual the surface of buttweld Tee body.
  • Check the marking ″ASME B16.9 ASTM B366 Incoloy 825 Straight Tee DN250 SCH120″.
  • Measure outside diameter, wall thickness, center to end and end to end.
  • Test the chemical properties of buttweld equal tee.
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ASME B16.9 ASTM B366 Incoloy 825 Straight Tee DN250 SCH120
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