Seamless Tube Alloy 718 / UNS N07718 Chemical composition:
% |
Ni |
Fe |
Cr |
Mo |
C |
Mn |
Si |
P |
S |
Co |
Nb+Ta |
Ti |
Al |
Cu |
B |
min |
50.0 |
balance |
17.0 |
2.80 |
- |
- |
- |
- |
- |
- |
4.75 |
0.65 |
0.20 |
- |
- |
max |
55.0 |
21.0 |
3.30 |
0.08 |
0.35 |
0.35 |
0.015 |
0.015 |
1.00 |
5.50 |
1.15 |
0.80 |
0.30 |
0.006 |
Seamless Tube Physical properties:
Density |
8.23 g/cm3 |
Melting range |
1260-1335℃ |

1 . Our company has been dedicated to producing nickel alloy tube since 2011 , owning complete producing technology and abundant managing experience .
2 . We have advanced NDT equipments for the tests such as Eddy Current test , Ultrasonic test , Hydraulic test and so on .
3 . We have ISO 9001 and PED certificate , and the Third Party Inspection Certificates such as TUV , BV , Lloyd’s , SGS , etc , also can be provided according to customers’ requirements .
4 . The surface condition is one of our main advantages : in order to meet different requirements for surface condition , we have annealing and pickling surface , bright annealing surface , polished surface etc .
5 . In order to keep the inside surface of pipe clean and make it free from deburring , our company develops the unique and special technology — Sponge Washing with high pressure .
6 . We have complete after-sale service to deal with the problems in time.
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