aluminium in commercial vehicles - European Aluminium Association

86 EUROPEAN ALUMINIUM ASSOCIATION ALUMINIUM IN COMMERCIAL VEHICLES CHAPTER VI
9. Special design issues
9.1. Tanks for the
transport of dangerous
goods - ADR
Tanks for the transport of dangerous
goods have to be built
according to the rules defined in
the following agreement and
standards:
• ADR: Agreement for the transport
of Dangerous goods by Road1 • EN 13094 “Tanks for the
transport of dangerous goods -
Metallic tanks with a working
pressure not exceeding 0.5 bar -
Design and construction”
• EN 14025 “Tanks for the
transport of dangerous goods -
Metallic pressure tanks - Design
and construction”
In particular, tank shell thickness
(e) is determined by the follow-
ing equivalence formula, where
e is the minimum shell thickness
0
for mild steel and R and A, the
m
tensile strength and elongation
of the metal chosen.
e = e × 464
0
3
√(R × A) m 2
For tanks protected against damage:
Furthermore, absolute minimum
shell thicknesses are fixed
depending on the type of tank,
the shell dimension and the
material used.
• For shells with circular cross-section ≤ 1.80 m:
e = 3 mm
0
e cannot be lower than 4,00 mm for aluminium alloys2 • For shells with circular cross-section > 1.80 m
e = 4 mm
0
e cannot be lower than 5,00 mm for aluminium alloys
For other tanks:
e = 5 mm for shells with circular cross-section ≤ 1.80 m
0
e = 6 mm for shells with circular cross-section > 1.80 m
0
1. See ADR - Annex A – Part 6 – Chapter 6.8:
http://www.unece.org/trans/danger/danger.htm
2. Whatever the result of the equivalence formula is.
Aluminium road tankers (Schrader)