Inconel Bellows

Overview

Inconel® is a nickel-based alloy with superior corrosion resistance and temperature performance to stainless steel. Inconel® Bellows using edge welded technology are designed for applications that require excellent corrosion resistance properties, such as valve or down-hole tool applications that are exposed to hydrogen sulfide.

The excellent high temperature survivability and custom design of BellowsTech Inconel bellows make them a cost-effective solution for assemblies requiring a a flexible connection that can withstand temperatures greater than 1000°F, with Alloy 625 offering the highest standard temperature rating.

With the flexibility to customize, BellowsTech can manufacture and weld custom fittings, flanges, and weld rings to its Inconel bellows to make customer installations easy and seamless. A variety of diaphragm options and thicknesses as well as the ability to manufacture multi-ply bellows construction increases the temperature and strength capabilities while maintaining most of its stroke length. BellowsTech works with customers to choose the right alloy based on the customer’s requirements.

*INCONEL^® is a registered trademark of Special Metals Corporation.

Specifications - Inconel Bellows – PDF
Material	Alloy 625 (Inconel® 625)+ or Alloy 718 (Inconel® 718)+, Alloy X750 (Incone®l X750)
Thickness	0.004″ and up every 0.001″
Standard Leak Rate	<1×10^-5 std CC He/sec
Size Ranges
Outside Diameter	0.358″ (9.0932mm) to 22.205″ (564mm)*
Inside Diameter	0.198″ (5.029mm) to 19.921″ (505.99mm)*
Shapes	Round standard. Non-Round Available; Contact Factory.
Length	Up to 96 inches (244 cm)
*For other dimensional requirements, contact the factory

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Typical Industries	Benefits
Oil & Gas	Excellent Corrosion Resistance
Test Stands	High Strength
High Temperature Exhausts	High Temperature

Outlines

Bellows Outline -- Lateral Offset - Angular Offset - Axial Compression and Extension

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Edge Welded Metal Bellows Diaphragm Specifications

Use the following table as a guide for configuring your metal bellows. BellowsTech currently offers over 80 standard sizes. The list can be sorted by each column, searched through the search box at the top-right and expanded by increasing the number of visible entries. For custom sizes, contact us and our design engineers will work with you to find the best solution.

Diaphragm #	Outside Diameter (OD)	Inside Diameter (ID)	Mean effective pressure area MEA (inches^2)	Radial Span (inches)
0036A	0.358	0.200	0.0611	0.079
0040A	0.396	0.2	0.0697	0.098
0048A	0.477	0.198	0.0895	0.1395
0050A	0.496	0.2	0.0951	0.148
0060A	0.595	0.26	0.1435	0.1675
0067A	0.67	0.394	0.2223	0.138
0075A	0.75	0.26	0.2003	0.245
0082A	0.821	0.548	0.3680	0.1365
0083A	0.827	0.575	0.3859	0.126
0084A	0.838	0.5	0.3515	0.169
0089A	0.892	0.592	0.4324	0.15
0102A	1.022	0.683	0.5708	0.1695
0103A	1.03	0.54	0.4840	0.245
0103B	1.03	0.54	0.4840	0.245
0103C	1.03	0.54	0.4840	0.245
0103D	1.03	0.55	0.4902	0.24
0108A	1.08	0.86	0.7390	0.11
0117A	1.17	0.75	0.7238	0.21
0118A	1.181	0.886	0.8389	0.1475
0124A	1.24	0.66	0.7088	0.29
0133A	1.33	1.015	1.0797	0.1575
0136A	1.355	0.54	0.7051	0.4075
0136B	1.362	1.012	1.1066	0.175
0144A	1.437	0.937	1.1066	0.25
0150A	1.5	1	1.2272	0.25
0151A	1.511	1.186	1.4282	0.1625
0156A	1.56	0.865	1.1547	0.3475
0163A	1.625	0.75	1.1075	0.4375
0163B	1.625	0.937	1.2888	0.344
0165A	1.65	1.24	1.6399	0.205
0174A	1.738	1.363	1.8881	0.1875
0175A	1.75	0.75	1.2272	0.5
0175B	1.75	1	1.4849	0.375
0176A	1.759	1.305	1.8433	0.227
0188A	1.875	0.975	1.5948	0.45
0189A	1.89	1.39	2.1124	0.25
0190A	1.9	1.5	2.2698	0.2
0193A	1.925	1.2	1.9175	0.3625
0195A	1.950	1.557	2.4149	0.1965
0200A	2	1.25	2.0739	0.375
0219A	2.190	1.690	2.9559	0.250
0224A	2.244	1.625	2.9392	0.3095
0225A	2.25	1.5	2.7612	0.375
0244B	2.437	1.937	3.7565	0.25
0245A	2.45	1.65	3.3006	0.4
0260A	2.6	1.78	3.7668	0.41
0260B	2.595	2.185	4.4863	0.205
0263A	2.625	2.125	4.4301	0.25
0265A	2.65	2	4.2456	0.325
0270A	2.7	1.95	4.2456	0.375
0275A	2.75	2.125	4.6664	0.3125
0275B	2.75	2.125	4.6664	0.3125
0275C	2.75	1.65	3.8013	0.55
0276A	2.76	1.965	4.3836	0.3975
0300A	3	2	4.9087	0.5
0300B	3	2	4.9087	0.5
0317B	3.165	2.585	6.4918	0.29
0331A	3.305	2.81	7.3421	0.2475
0331C	3.305	2.81	7.3421	0.2475
0350A	3.5	2.75	7.6699	0.375
0368A	3.675	2.53	7.5599	0.5725
0403A	4.034	3.085	9.9510	0.4745
0403B	4.034	3.085	9.9510	0.4745
0417A	4.17	3.7	12.1613	0.235
0420A	4.2	3.4	11.3411	0.4
0472A	4.72	3.72	13.9867	0.5
0475A	4.75	3.03	11.8847	0.86
0490A	4.9	3.53	13.9536	0.685
0490B	4.903	4.323	16.7131	0.29
0497A	4.97	4	15.7985	0.485
0508A	5.077	4.13	16.6443	0.4735
0545A	5.45	4.95	21.2372	0.25
0572A	5.722	4.472	20.4042	0.625
0588A	5.88	5.12	23.7583	0.38
0675A	6.75	5.542	29.6671	0.604
0728A	7.283	5.906	34.1549	0.6885
0775A	7.75	6.85	41.8539	0.45
0785A	7.85	6.25	39.0363	0.8
0787A	7.874	6.693	41.6649	0.5905
0808A	8.083	7.15	45.5618	0.4665
0925A	9.25	8	58.4263	0.625
0950A	9.5	8.5	63.6173	0.5
1099A	10.99	10.12	87.4997	0.435
1100A	11	9.5	82.5159	0.75
1110A	11.102	9.102	80.1502	1
1200A	12	10	95.0332	1
2221A	22.205	19.921	348.4419	1.142

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Overview

Specifications - Inconel Bellows – PDF

Typical Industries

Benefits

Outlines

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Find Bellows by Material

Edge Welded Metal Bellows Diaphragm Specifications

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