Typically, the key component of an expansion joint is the Metal Bellows element. Flexibility is paramount in containing the media and the pressure inherent in the system. Metal bellows
expansion joints, thin-walled, corrugated membranes, provide this flexibility.
MATERIAL
CHINA |
JAPAN
|
USA
|
GERMANY
|
|
GB1220-92
|
JIS G4303-91
|
ASTM A276-96
|
DIN 17400-96;DIN EN 10088-1-95
|
|
Cr+Ni
|
||||
0Cr18Ni9 | SUS304 | 304 | X5CrNi18-10 | 1.4301 |
0Cr18Ni10Ti | SUS321 | 321 | X6CrNiTi18-10 | 1.4541 |
Cr+ Ni + Mo
|
||||
0Cr18Ni13Mo2Ti | SUS316 | 316 | X5CrNiMo17-12-2 | 1.4401 |
00Cr17Ni13Mo2 | SUS316L | 316L | X2CrNiMo18-14-3 | 1.4404 |
AISI
Designation
|
W.Nr.
Designation
|
% Cr | % Ni | % C | % Mn | % Si | % P | % S | % N | Other |
Austenitic | ||||||||||
304
|
1.4301
|
18–20
|
8–10.50
|
0.08
|
2
|
0.75
|
0.045
|
0.03
|
0.1
|
-
|
316
|
1.4401
|
16–18
|
10–14
|
0.08
|
2
|
0.75
|
0.045
|
0.03
|
0.1
|
2.0–3.0 Mo
|
316L
|
1.4404
|
16–18
|
10–14
|
0.03
|
2
|
0.75
|
0.045
|
0.03
|
0.1
|
2.0–3.0 Mo
|
321
|
1.4541
|
17–19
|
9–12
|
0.08
|
2
|
0.75
|
0.045
|
0.03
|
0.1
|
Ti 5(C+N) min, 0.70 max
|
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