Pipeline Hubs and Clamps
Hubs are available as Weld Neck, Integral and Blinds and are available in the following material and pressure ratings:-
| HUBS |
CLAMPS |
SEALRINGS
|
| |
A350 LF2 MOD |
AISI 4130 |
A182 F316L |
A182 F51 |
AISI 4130 |
A182 F304 |
AISI 4130 |
A564 630 (17-4PH) |
| Min. Tensile |
70,000 PSI |
90,000 PSI |
75,000 PSI |
90,000 PSI |
100,000 PSI |
75,000 PSI |
100,000 PSI |
115,000 PSI |
| Min. Yield |
52,000 PSI |
60,000 PSI |
30,000 PSI |
65,000 PSI |
75,000 PSI |
30,000 PSI |
75,000 PSI |
75,000 PSI |
| Hardness (Max.) |
197 BHN |
235 BHN |
N/A |
28 HRC |
22 HRC |
N/A |
22 HRC |
33 HRC |
| Impact Values |
54/40 Joules |
40/32 Joules |
N/A |
70/65 Joules |
42/32 Joules |
N/A |
27/20 Joules |
27/20 Joules |
| Impact Test Temp. |
-46 Deg C |
-46 Deg C |
N/A |
-46 Deg C |
-46 Deg C |
N/A |
-46 Deg C |
-46 Deg C |
| Temper Temp. |
650 Deg C |
650 Deg C |
N/A |
N/A |
620 Deg C |
N/A |
N/A |
N/A |
Our spec-sheet includes all the relevant information regarding our products. You can download it below. Feel free to contact us if anything isn't clear or for any more information.

If you would like to download the brochure for our entire range of products, please click this link.
info@at-engineering.co.uk