ASME B16.9 ASTM B366 UNS NO8825 Straight Tee OD 273 X 21.44MM

Type: UNS NO8825 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.

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

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.

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 UNS NO8825 Straight Tee?

• Visual the surface of buttweld Tee body.
• Check the marking ″ASME B16.9 ASTM B366 UNS NO8825 Straight Tee OD 273 X 21.44MM″.
• Measure outside diameter, wall thickness, center to end and end to end.
• Test the chemical properties of buttweld equal tee.