BENTLEY MARINE - Special Aluminum Alloys

Standard in all BENTLEY YACHTS with aluminum hulls and/or superstructures, BENTLEY MARINE Special Aluminum Alloys are up to 40% stronger than ordinary marine alloys 5083 and 5086, 25% stronger than ALUSTAR TM AA5059 and yet, up to 50% lighter.

They were purposely developed for high-speed craft to withstand the most demanding Naval applications with no other analogues in the world.

We now offer such Special Aluminum Alloys to qualified shipyards interested in this technology.

BENTLEY MARINE Series 61 Aluminum Magnesium Alloy System:

The Series 61 is an effective material for high - speed sea-going crafts, such as Hydrofoils and Air Cavity, A-Foil and Unconventional Naturally Ventilated vessels.

Alloy:
* Corrosion-resistant
* Weldable
* Easily deformed
* Thermal - non - strengthened

This special alloy with increased strength has gained over 30 years of military service experience on sea vessels in temperatures ranging from -196ºC to +70ºC under the most complex corrosion conditions.

What we can supply:
Sheets, profiles, tubes, pressed panels - monolith with stiffening ribs.

BM - Series 61 Semi-finished Products	Temper	Properties
BM - Series 61 Semi-finished Products	Temper	Tensile Strength/MPa Rm	Proof Strength/MPa Rp 0.2	Elongation/ d, %
Sheets	0	340	180	15
Profiles	Hot-Pressed	340	210	11
Panels	0	340	190	11

BENTLEY MARINE Series 75 Aluminum Magnesium Alloy System:

Special high-strength alloy with unique fine-grain structure for use in high-stressed welded lightweight structures of high speed vessels.

* The alloy is thermal - non-strengthened.
* The welded joints have equal with base metal strength, don't need weld heat treatment.
* BM Series 75 alloy products have excellent corrosion - resistance against sea water, marine fog and splashes and other complex conditions.

What we can supply:
* Sheets (4-10) x (1200-1500) x 7000 mm pressed profiles with section up to 200 sm2
* Pressed panels - monolith with striffening ribs ("4-6) x 1600 x 6000 mm.

The high strength of semi-finished products provides a structure weight reduction of 1,25 - 1,5 times in comparison with standard aluminum alloys.

BM - Series 75 Semi-finished Products	Temper	Properties
BM - Series 75 Semi-finished Products	Temper	Tensile Strength/MPa Rm	Proof Strength/MPa Rp 0.2	Elongation/ d, %
Sheets Panels Profiles	0	410	300	11
Sheets	H323	480	430	7

Alloy 5083 Semi-finished Products	Temper	Properties
Alloy 5083 Semi-finished Products	Temper	Tensile Strength/MPa Rm	Proof Strength/MPa Rp 0.2	Elongation/ d, %
Sheets	H111	270	115	14
Sheets	H116/H321	305	205	10
Profiles	Hot-Pressed	Not Available	Not Available	Not Available
Panels	0	Not Available	Not Available	Not Available

ALUSTAR Semi-finished Products	Temper	Properties
ALUSTAR Semi-finished Products	Temper	Tensile Strength/MPa Rm	Proof Strength/MPa Rp 0.2	Elongation/ d, %
Sheets	H111	330	160	24
Sheets	H116/H321	360	260	10
Profiles	Hot-Pressed	Not Available	Not Available	Not Available
Panels	0	Not Available	Not Available	Not Available

For more information on BENTLEY MARINE Special Aluminum Alloys, please contact us.