| Specification: | ASME SA516 | NDT: | UT， PT MT |
|---|---|---|---|
| Grade: | 70N | Application: | Heat Exchanger， Boiler， Pressure Vessel， Chemical Reactor， Power Plant， Energy ， Petrochemical |
| High Light: | ASME SA516 Boiler Tubesheet， Industrial Heat Exchanger Tubesheet | ||
ASME SA516 Gr.70N Tubesheet Plate For Heat Exchanger
Tubesheets are extensively utilized in a variety of industrial applications， including shell and tube heat exchangers， boilers， pressure vessels， steam turbines， and large central air conditioning systems.
Customized high-precision tubesheets， on the other hand， are mainly used in chemical containers for operations such as shell and tube heat exchangers， boilers， pressure vessels， condensers， central air conditioning systems， evaporators， and water desalination. These tubesheets serve the important function of providing support for fixed shell and tube units.
Due to their metallic composition， the tubesheets possess outstanding rigidity and heat conduction performance.
SA516 Grade 70 usual request normalized if thickness above 40mm， if not， Gangsteel usual delivery in hot rolled or control rolled station. A516 Gr.70+N or A516gr70N mean that steel grade must be normalized in any thickness.
Where is the stationary Tubesheet located in the floating head heat exchanger?
The tubesheet at the rear header end of the shell is of slightly smaller diameter than the shell， allowing the bundle to be pulled through the shell. The use of a floating head means that thermal expansion can be allowed for and the tube bundle can be removed for cleaning.
CHEMICAL COMPOSITION OF A516 GR.70
C | Si | Mn | P | S | Al | Cr | Cu | Ni | Mo | Nb | Ti | V |
0.18 | 0.4 | 0.95/1.50 | 0.015 | 0.008 | 0.02 (Min) | 0.3 | 0.3 | 0.3 | 0.08 | 0.01 | 0.03 | 0.02 |
Equivalent Material
| British Standard | European Norm | ASTM/ASME |
| BS1501-224-490A/B | EN10028 P355GH | A/SA516 – Grade 70 |
Mechanical Requirements
| Mechanical property | Value |
|---|---|
| Tensile Strength， MPa (ksi) | 485-620 (70-90) |
| Yield Strength， min MPa (ksi) | 260 (38) |
| Elongation min， % 200 mm (8 in) | 17 |
| Elongation min， % 50 mm (2 in) | 21 |
Applications:
-Boilers
-Calorifiers
-Columns
-Dished ends
-Filters
-Heat exchangers
-Pipelines
-Pressure vessels
-Oilfield fabrications
-Flanges
-Valves
-Storage tanks
