Hemispherical heads allow more pressure than any other head. However, the
hemispherical head is the most expensive to form, as they consists
of a number of petals or gores. The number of which depends on the
size of the head and the thickness of the plate to be used. The
depth of the head is half of the diameter.
Hemispherical Head (also called hemispherical tank heads or hemispherical dish ends)
is widely applied to make pressure tanks to storage liquids and
gasses. Our asme hemispherical head is often made with carbon
steel, stainless steel, austenitic and non ferritic metals that can
be cold worked. Hemispherical is the ideal shape for development of
hemispherical dish end, because the pressure in the vessel is
divided equally across the surface of the head. The radius (Ri) of
the head equals the radius of the cylindrical part of the vessel.
This type of hemispherical tank heads or hemispherical dish ends
are made in most popular sizes and thicknesses.
Production Process of Heads:
1. The normal size of the steel hemisphere is ?
Our workshop own the mold for steel hemisphere from 300mm to
1800mm, hot selling sizes for fire pits are 500mm, 650mm, 800mm,
2. The material for steel hemisphere is ?
We can provide carbon steel and stainless steel , such as
Q235B,Q345R, 304 and 316L
3. The thickness of steel hemisphere is ?
The min thickness is 3mm and the max thickness is 12mm, 4-6mm is
the most popular thickness .
4. The surface treatment for the steel hemisphere is ?
We can provide various surface treatment for steel hemisphere :
for carbon steel , bare and sandblasting are available ; for
stainless steel , acid washing and mirror polished are available .
5. The package of steel hemisphere is ?
We can provide customized package service , most popular package is
plywood pallet , other packages , like steel pallet , steel frame ,
plywood box are all accepted .
6. The MOQ of the steel hemisphere is ?
Our MOQ is 1 piece,delivered by express
7. Can you produce the steel hemisphere as our requirement ?
If you have drawings, we will be entirely in accordance with
production drawings . If you do not have the drawing, you can tell
me the product data which necessary to order heads
Type of Head
Dimensional Information (O.D., I.D., Thk., S.F., etc.)
Special Tolerances or Requirements
8. The payment terms is ?
T/T, Paypal, Western Union, Moneygram, Alibaba Trade Assurance
If you are interested , feel free to send me an inquiry online,