ASTM B366 Monel 400 / UNS N04400 Elbow 90 Degree Nickel Alloy Steel Buttweld Fitting

Overview:

Monel 400 buttweld elbows are crucial components in piping systems, especially in environments that demand resistance to corrosion and high temperatures. This alloy, primarily composed of nickel (67%) and copper (30%), is known for its impressive mechanical properties and resistance to various corrosive mediums, including acids and saltwater.

These elbows come in various sizes and angles, most commonly at 45° and 90° bends, enabling effective changes in the direction of piping without compromising flow consistency. The manufacturing process generally involves hot or cold working techniques, ensuring durability and reliability.

Monel 400's excellent weldability allows for seamless connections between pipes, minimizing the risk of leaks and reducing the need for additional fittings. This characteristic is vital for applications in marine, chemical processing, and oil and gas industries, where conventional materials would fail.

In terms of standards, Monel 400 buttweld elbows typically meet specifications set by ASTM B165 and B366, ensuring uniformity and quality in production. The material is also known for its resistance to stress corrosion cracking and ability to perform well at elevated temperatures, functioning effectively in both reducing and oxidizing environments.

Specification:

Chemical Composition:

Mechanical Properties:

Dimension:

Nominal Size		Outside Diameter at Bevel (mm)	Center to End (mm)
			90° Elbow		45° Elbow
DN	NPS	O.D.	A		B
			LR	SR	LR
15	1/2	21.3	38	...	16
20	3/4	26.7	38	...	19
25	1	33.4	38	25	22
32	1 1/4	42.2	48	32	25
40	1 1/2	48.3	57	38	29
50	2	60.3	76	51	35
65	2 1/2	73.0	95	64	44
80	3	88.9	114	76	51
90	3 1/2	101.6	133	89	57
100	4	114.3	152	102	64
125	5	141.3	190	127	79
150	6	168.3	229	152	95
200	8	219.1	305	203	127
250	10	273.0	381	254	159
300	12	323.8	457	305	190
350	14	355.6	533	356	222
400	16	406.4	610	406	254
450	18	457.0	686	457	286
500	20	508.0	762	508	318
550	22	559.0	838	559	343
600	24	610.0	914	610	381
650	26	660.0	991	660	406
700	28	711.0	1067	711	438
750	30	762.0	1143	762	470
800	32	813.0	1219	813	502
850	34	864.0	1295	864	533
900	36	914.0	1372	914	565
950	38	965.0	1448	965	600
1000	40	1016.0	1524	1016	632
1050	42	1067.0	1600	1067	660
1100	44	1118.0	1676	1118	695
1150	46	1168.0	1753	1168	727
1200	48	1219.0	1829	1219	759
Notes: 1) Besides these, GB/T 10752, SH 3408, SH 3409, HG/T 21635, HG/T 21631, SY/T 0510, DL/T 695, EN 10253 etc.are also applied. 2) The elbow with NPS over 48 shall be made subject to the sizes agreed by purchaser and manufacturer.