6.6.4.4.4 For vacuum insulated tanks, the aggregate thickness of the jacket and the shell shall correspond to the minimum thickness prescribed in 6.6.4.4.2, the thickness of the shell itself being not less than the minimum thickness prescribed in 6.6.4.4.3.

6.6.2.4 Minimum shell thickness

6.6.3.4 Minimum shell thickness

6.6.4.4 Minimum shell thickness

Minimum shell thickness (mm reference steel) Bottom opening requir ements

thickness (mm reference steel)

Shells of more than 1.80 m in diameter shall be not less than 6 mm thick in the reference steel or of equivalent thickness in the steel to be used.

Shells of more than 1.80 m in diameter shall be not less than 6 mm thick in the reference steel or of equivalent thickness in the metal to be used.

All parts of the shell shall have a minimum thickness as determined by 6.6.2.4.2 to 6.6.2.4.4.

All parts of the shell shall have a minimum thickness as determined by 6.6.3.4.1 to 6.6.3.4.3.

Attention is drawn to the minimum shell thickness requirements, specified in 6.6.4.4.2 to 6.6.4.4.7.

All parts of the shell shall have a minimum thickness as determined by 6.6.4.4.1 to 6.6.4.4.6.

6.6.4.4.2 Shells of not more than 1.80 m in diameter shall be not less than 5 mm thick in the reference steel or of equivalent thickness in the metal to be used.

Such shells of more than 1.80 m in diameter shall be not less than 4 mm thick in the reference steel or of equivalent thickness in the metal to be used.

6.6.2.4.1 The minimum shell thickness shall be the greater thickness based on

6.6.3.4.1 The minimum shell thickness shall be the greater thickness based on

6.6.4.4.1 The minimum shell thickness shall be the greater thickness based on

Attention is drawn to the minimum shell thickness requirements for these shells specified in 6.6.3.4.

6.6.4.4.3 Shells of vacuum insulated tanks of not more than 1.80 m in diameter shall be not less than 3 mm thick in the reference steel or of equivalent thickness in the metal to be used.

6.6.3.4.5 In no case shall the wall thickness be less than that prescribed in 6.6.3.4.1 to 6.6.3.4.3.

6.6.4.4.7 In no case shall the wall thickness be less than that prescribed in 6.6.4.4.1 to 6.6.3.4.5.

Attention is drawn to the minimum shell thickness requirements for these tanks specified in 6.6.2.4.1 to 6.6.2.4.10.

6.6.2.4.8 In no case shall the wall thickness be less than that prescribed in 6.6.2.4.2, 6.6.2.4.3 and 6.6.2.4.4.

6.6.4.4.5 Shells shall be not less than 3 mm thick regardless of the material of construction.

6.6.3.4.2 The cylindrical portions, ends (heads) and manhole covers of shells of not more than 1.80 m in diameter shall be not less than 5 mm thick in the reference steel or of equivalent thickness in the steel to be used.

The snow lay on the ground, frozen into a thick, hard crust.

Cover open

6.6.2.4.10 There shall be no sudden change of plate thickness at the attachment of the ends (heads) to the cylindrical portion of the shell.

6.6.3.4.7 There shall be no sudden change of plate thickness at the attachment of the ends (heads) to the cylindrical portion of the shell.

6.6.4.4.8 There shall be no sudden change of plate thickness at the attachment of the ends (heads) to the cylindrical portion of the shell.

6.6.3.4.3 The cylindrical portions, ends (heads) and manhole covers of all shells shall be not less than 4 mm thick regardless of the material of construction.

Plasma desktop shell

A solid body.

6.6.2.4.4 The cylindrical portions, ends (heads) and manhole covers of all shells shall be not less than 3 mm thick regardless of the material of construction.

Thickness

Because if you look closely at the beetle's shell, there are lots of little bumps on that shell.

Plasma Desktop Shell

Native desktop shell

The edge of the roof of our building had to be in line with the outer walls.

were thickly crusted, one and all.

were thickly crusted one and all.

Custom desktop shell

Setup Custom Shell

In plate tectonic theory, we knew that if you had plates collide, it made sense they would crush into one another, you would thicken the crust, you'd uplift it.

Thick Outline