• Elliptical Head2
  • packing hemisphere1

900mm 36″ Mild Steel Half Sphere Metal Hemisphere 6mm Thick for Fireworks

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. 


Category:

Material:carbon steel and stainless steel
Size: 59-7000mm
Special design available according to per customer requiremet
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 heads are also used in architectural applications by joining two hemispheres together to form a spherical ball. Other common applications are for stainless steel cooking kettles with steam jackets.
2, Application:
Gas and Oil industry, Petrochemical industry, food, etc
3, forming range (see below excel)
Carbon Steel Hemisphere Normal Size (Diameter )
20mm 250mm 1500mm
30mm 300mm 1800mm
40mm 350mm 2000mm
50mm 400mm 2500mm
60mm 450mm 3000mm
70mm 500mm 4000mm
80mm 600mm 5000mm
90mm 700mm 6000mm
100mm 800mm 7000mm
150mm 900mm 8000mm
180mm 1000mm 9000mm
200mm 1200mm 10000mm

Note that:
A: The below heads was formed by hokkai with one piece plate,
B: Pls check with me if the range is out of the below range, pls contact with me
C, the forming range is not included in petals fabrication way.

4, Order information
Pls provide us with below information
1) Material grade. Including special requirement if have
2) Head Diameter
3) Normal THK or min thick
4) Straight Flange if have
5)others special forming process

O.D. — Outside Diameter
I.D. — Inside Diameter
Thk. — Thickness (nominal or minimum)
O.A.H. — Overall Height
I.H. — Inside Height
S.F. — Straight Flange
R. — Radius
D.R. — Dish Radius
I.K.R. or I.C.R. — Inside Knuckle (or corner) Radius
I.D.D. — Inside Depth of Dish



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