ASTM B366 UNS N10276 / Hastelloy C276 Elbow Hastelloy Steel Buttweld Fitting

ASTM B366 UNS N10276 / Hastelloy C276 Elbow Hastelloy Steel Buttweld Fitting

The ASTM B366 UNS N10276 (commonly referred to as Hastelloy C276) is a nickel-molybdenum-chromium alloy with an exceptional resistance to corrosion in a wide range of severe environments. This alloy is particularly known for its ability to withstand strong oxidizing and reducing agents, as well as its resilience against localized corrosion such as pitting and crevice corrosion.

Features of Hastelloy C276 Elbow Buttweld Fitting:

• Material Composition:

  • Nickel (Ni): Predominantly high content for superior corrosion resistance.
  • Molybdenum (Mo): Enhances resistance to reducing agents.
  • Chromium (Cr): Provides excellent resistance to oxidizing environments.

• Corrosion Resistance:

  • Outstanding resistance in chemical process environments including strong oxidizers, chlorides, and oxidizing salts.
  • Suitable for applications in industries where exposure to hydrochloric acid, sulfuric acid, and oxidizing agents like ferric and cupric chlorides is common.

• Mechanical Strength:

  • Excellent mechanical properties ensuring high strength and durability under pressure and high-temperature conditions.

• Applications:

  • Widely used in chemical processing, petrochemical, marine, and pharmaceutical industries.
  • Ideal for piping systems handling highly corrosive fluids.

• Manufacturing Standard:

  • Produced and tested under the ASTM B366 standard, which ensures high-quality fabrication and rigorous testing for buttweld fittings.

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.