Welded Bellow

 

edge-welded-bellows-zoom.jpg 

Our Specialty: 

    - Engineering analysis and design
    - Failure analysis
    - Excellent cost performance
    - Application know how
    - Rectangular Bellows

Industries served: Aerospace, Semiconductor,

                                   Metrology, Bio-pharma, etc

 

To order, please click here to send request:  weld-bellow-request.jpg

 

Material Characters

Material
Treatment
Max 
Tensile
Strength
(psix103)
Max 
Tensile
Strength 
2% Deduction
(psix103)
Elongation
in 2 inch
(%)
Hardness
Module 
Elasticity
psix106)
Density
(lbxin2)
Thermal 
Expansion 
Coefficient 
68~212oF 
(in/inoF x10-6)
Thermal 
Conduction 
212oF 
(Btu/hr-ftoF)
Magnetic 
Permeability 
200H 
(annealed)
304 Annealed 81 39 55 79R0 28 0.29 9.6 9.4 1.02 max
316L Annealed 81 42 55 79R0 29 0.29 8.9 9.4 10.2 max
321 Annealed 90 35 55 80R0 28 0.29 9.3 9.3 10.2 max
347 Annealed 95 40 50 85R0 28 0.29 9.3 9.3 10.2 max
Alloy 20 Annealed 93 46 38 90R0 28 0.29 8.2 7.6 1.002
AM350 Annealed 145 60 40 20R0 29 0.286 8.5 8.2 12 max
AM350 SCT850oF 206 173 12.5 45R0 29.4 0.282 6.3 8.9 12.3 max
HC-276 Annealed 115 55 60 90R0 29.8 0.321 6.8 6.4 1.0002
Haynes 242 Annealed 128 65 47 - 33.2 0.327 6 7 -
Haynes 242 Aged 196 135 32 - 33.2 0.327 6 7 -
Inconel 625 Annealed 120 60 55 88R0 29.8 0.305 7.1 6.2 1.0006
Inconel 718 Annealed 117 44 - - 29 0.296 - 6.5 1.0013
Inconel 718 Aged 180 150 12 26R0 29 0.297 6.8 6.6 1.0011
Inconel X-750 Aged 177 123 27 - 31 0.298 7 6.9 1.002
Monel 400 Annealed 70 28 55 68R0 26 0.316 7.7 13.9 -
Titanium CP2 Annealed 50 40 - - - 0.162 - - 1.00005

 

Material

- Stanless Steel : 304L, 316L, AM350

- Nickel Alloys : Hastelloy C-276 , Inconel 625-X, Inconel 718, Monel 400

- Titanium Alloys : Titanium 15-3-1, Titanium CP2

- Others Available  

 

Standard Die List

* Below list is our standard die under 400mm outer diameter of which performance is applied to various

   appication for semiconductior, Flat Panel Display, vacuum, mechanical seals, valves, etc.

O.D[mm] I.D[mm]   O.D[mm] I.D[mm]   O.D[mm] I.D[mm]   O.D[mm] I.D[mm]
9.50 3.50   38.10 25.30   61.90 49.10   105.00 80.20
12.00 6.00   38.10 25.40   62.00 46.00   105.00 81.00
12.60 5.00   38.10 22.10   63.50 43.50   107.00 77.00
13.00 6.20   39.70 26.90   63.50 44.30   107.50 94.00
13.50 6.00   39.70 22.00   64.50 38.90   107.80 81.20
15.00 5.00   39.70 19.00   65.00 40.00   108.00 95.20
16.50 6.50   39.70 24.40   65.00 45.00   108.00 92.00
16.50 8.50   40.00 30.00   65.10 52.30   108.00 89.00
18.00 8.00   40.00 20.00   68.00 49.00   108.20 81.60
18.00 6.50   41.20 28.40   68.30 55.50   108.20 85.00
19.00 6.20   41.30 15.70   70.00 50.00   110.00 80.00
19.00 9.00   41.30 18.90   71.00 53.00   111.10 95.10
19.00 6.60   41.30 22.10   71.30 45.70   114.30 98.30
20.00 9.00   42.80 30.00   71.50 58.70   117.50 101.50
20.30 7.80   44.00 25.00   74.60 54.60   120.00 84.80
20.30 10.30   44.20 31.40   74.60 61.80   120.00 90.00
20.50 7.70   44.40 19.10   75.00 50.00   120.00 100.00
21.00 11.00   44.50 18.90   75.00 55.80   120.00 90.00
21.30 13.00   45.00 25.80   76.20 50.60   120.80 104.80
22.00 8.00   45.00 25.00   76.20 63.50   121.10 95.40
23.00 12.00   46.00 26.00   80.00 55.00   123.80 107.80
24.00 10.00   46.10 33.30   80.00 50.00   125.00 85.00
25.40 9.40   47.20 34.40   81.00 61.80   126.00 101.50
25.40 8.00   47.50 24.70   81.00 68.20   126.20 100.60
26.00 13.20   47.60 22.00   81.00 65.00   126.20 100.60
26.00 16.00   48.00 35.20   81.00 60.00   127.80 90.00
26.00 14.00   49.00 30.50   82.50 57.20   130.00 106.00
26.00 12.00   49.20 39.20   82.50 56.90   130.00 100.00
26.16 13.72   49.20 36.40   82.50 57.20   133.40 114.20
26.50 13.70   50.00 30.00   84.00 71.50   133.40 88.40
26.50 15.50   50.20 36.60   84.20 71.40   136.00 120.00
28.70 12.70   50.70 38.20   84.20 58.60   136.50 117.30
29.20 16.40   50.80 34.80   84.20 68.20   144.00 129.00
29.80 20.20   50.80 34.80   85.00 60.00   144.00 124.00
30.00 17.00   50.80 31.60   85.00 59.40   146.00 130.00
31.40 16.70   50.80 35.60   87.30 71.30   147.00 129.00
31.80 19.00   51.00 31.00   88.90 50.80   149.20 131.20
31.80 15.80   52.40 39.60   89.10 63.50   149.20 130.00
31.80 19.40   52.40 39.60   90.00 65.10   149.50 120.50
32.50 21.50   53.00 36.00   90.00 60.00   149.80 109.80
33.40 20.60   53.10 38.60   92.10 79.30   157.00 127.00
34.20 13.70   54.00 41.50   92.10 76.10   157.00 132.00
34.40 15.20   55.60 30.00   92.40 66.80   159.00 115.00
34.50 14.50   55.60 42.80   94.00 70.00   161.90 142.70
34.50 19.50   56.00 36.80   94.20 75.00   164.00 137.00
34.50 17.50   56.00 36.00   95.30 79.30   164.00 149.00
34.50 17.00   57.00 37.80   97.20 84.40   170.00 140.00
36.50 23.70   58.00 42.00   98.40 82.40   174.60 155.40
36.60 19.00   58.70 38.70   100.00 75.00   176.00 127.00
37.00 17.80   58.80 46.00   101.60 68.50   180.00 140.00
37.00 19.00   60.00 40.00   101.60 85.60   185.00 135.00
37.00 11.40   61.10 46.60   104.00 86.40   190.00 164.40
38.10 18.90   61.60 36.40   104.80 88.80   190.00 152.00