ASME B16.9 ASTM B366 Incoloy 825 Pipe Cap DN250 SCH100

Type: 825 Pipe Cap
Material: UNS NO8825 (Incoloy 825)
Size: 10″ (DN250)
WT: SCH100
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.

Nominal Size		Outside Diameter at Bevel	Length		Limiting Wall Thickness for Length E
DN	NPS	OD	E	E1
15	1/2	21.3	25	25	4.57
20	3/4	26.7	25	25	3.81
25	1	33.4	38	38	4.57
32	1 1/4	42.2	38	38	4.83
40	1 1/2	48.3	38	38	5.08
50	2	60.3	38	44	5.59
65	2 1/2	73	38	51	7.11
80	3	88.9	51	64	7.62
90	3 1/2	101.6	64	76	8.13
100	4	114.3	64	76	8.64
125	5	141.3	76	89	9.65
150	6	168.3	89	102	10.92
200	8	219.1	102	127	12.7
250	10	273	127	152	12.7
300	12	323.8	152	178	12.7
350	14	355.6	165	191	12.7
400	16	406.4	178	203	12.7
450	18	457	203	229	12.7
500	20	508	229	254	12.7
550	22	559	254	254	12.7
600	24	610	267	305	12.7
650	26	660	267	—	—
700	28	711	267	—	—
750	30	762	267	—	—
800	32	813	267	—	—
850	34	864	267	—	—
900	36	914	267	—	—
950	38	965	305	—	—
1000	40	1016	305	—	—
1050	42	1067	305	—	—
1100	44	1118	343	—	—
1150	46	1168	343	—	—
1200	48	1219	343	—	—

Note:
1）The configuration of the cap is normal ellipse.
2）Length E applies for the thickness not exceeding the Limiting Wall Thickness, Length E1 applies for the thickness exceeding the Limiting Wall Thickness.For the caps with DN ≥650 (NPS26), they will be made subject to the sizes agreed between purchaser and manufacturer or be supplied according to manufacturer’s size.

What is Formula of Pipe cap Weight

Weight of a Butt Weld Cap as per ASME B16.9 is calculated as per following formula  :

  

Where :

• W = Weight of Cap in Kg.

• OD = Outside diameter of cap (mm)

• E = End to end length of cap (mm)

• T = Wall Thickness (mm)

Dimension and Weight of Caps

All dimensions are in “mm” unless noted otherwise.
All weights are in “kg”.
Cap dimensions are as per ASME B16.9.

Notes

• The shape of the caps shall be ellipsoidal and shall conform to the shape requirements as given in ASME Boiler and Pressure Vessel code.
• Length E applies for thickness not exceeding that given in column «Limiting wall thickness for length E».
• Length E1 applies for thickness greater than that given in column «Limiting wall thickness» for sizes NPS 24 and smaller.
• For sizes NPS 26 and larger, length E1 shall be by agreement between manufacturer and purchaser.

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 Pipe Cap?

• Visual the surface of buttweld Tee body.
• Check the marking ″ASME B16.9 ASTM B366 Incoloy 825 Pipe Cap DN250 SCH100″.
• Measure outside diameter, wall thickness, center to end and end to end.
• Test the chemical properties of buttweld pipe cap.