[Beryllium Copper] [Brass] [Inconel] [Monel]
[Nickel] [Phosphor Bronze] [Stainless Steel]

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In the event a listed stock Bellows will not meet your exact requirements, Contact Mini-Flex and we will search our entire database (1000’s) of in-stock bellows for a closer match.

See our “Design Guide” for explanations to the stock list column headings.

Inconel (625, 718 & X-750)

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Part Number

Convolution Inside
Diameter
(Inches)

Convolution Outside
Diameter
(Inches)

Wall
Thickness (Inches)

Neck
Outside
Diameter (Inches)

Neck
Length
(Inches)

Convolution Free
Length
(Inches)

Maximum
Deflection in
Compression (Inches)

Spring
Rate
(Lbs./In.)

Effective
Area
(sq.inch)

Critical Squirming Pressure
(P.S.I.G.)

Burst
Pressure
(Restrained) (P.S.I.G.)

Number
Of
Convo-
lutions
Optimal results are achieved by age hardening (X-750 and 718). Consult factory for details.
Bellows are supplied in the annealed- cold worked as formed condition. Age Harden available on request.
I625-320-60-317

.302

.474

.0060

.321

.15

.56

.135

317

.119

1500

6000

14
I718-159-72-280

.128

.254

.0072

.161

.35

1.23

.175

280

.028

1300

9800

35
I718-159-72-1060

.129

.252

.0072

.159

.15

.41

.039

1060

.028

*

9600

12
I718-320-80-189

.294

.510

.0080

.321

.15

1.03

.230

189

.126

950

5200

21
I718-320-80-650 .298 .493 .0080 .321 .14 .33 .075 650 .123 3000 5100 8
IX-159-58-166

.134

.255

.0058

.161

.30

1.20

.170

166

.030

850

7500

35
IX-159-60-600

.134

.252

.0058

.159

.15

.41

.057

600

.029

*

7500

12
IX-250-60-200

.230

.375

.0060

.252

.11

1.09

.210

200

.072

800

5500

32
IX-250-60-400

.230

.375

.0060

.252

.12

.54

.095

400

.072

2200

5000

16
IX-250-60-1150

.232

.375

.0060

.252

.12

.17

.030

1250

.072

*

5000

5
IX-320-60-320

.306

.474

.0060

.321

.12

.58

.130

300

.119

1800

4200

14
IX-320-60-625

.304

.476

.0060

.322

.12

.23

.050

625

.119

*

4300

6

[Beryllium Copper] [Brass] [Inconel] [Monel]
[Nickel] [Phosphor Bronze] [Stainless Steel]

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This page last modified: August 4, 2004