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The body of a gas cartridge is deeply drawn and requires a design grade with low anisotropy.
Pressure resistance is mainly provided by the bottom. The exact resistance provided comes from a combination of the packaging steel’s thickness and hardness.
For the can bodies, the market requires lower strength grades such as TH340. TH340 also exhibits low-earring properties.
For the bottom, higher strength grades such as TH435 are used.
Coating: Tin coating (around E2.0/2.0).
Chromium passivation (P300) can be utilised to optimise lacquer adhesion.