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Alloy 1581 (5181) is a deformable, non-heat-treatable Al-Mg-Sc alloy containing up to 0.03% Sc, providing greater strength than alloys 5083 and 1561.
It provides improved corrosion resistance and exceptionally high weld strength. (The alloy of choice for many Naval Architects).
Certified by both the Russian Maritime and River Register of Shipping.
It provides improved corrosion resistance and exceptionally high weld strength. (The alloy of choice for many Naval Architects).
Certified by both the Russian Maritime and River Register of Shipping.
Products
Slabs
Billets
Benefits
Yield strength
compared to alloy 1561
+ 17 %
Reduction in Al hull weight
* when Welded large-sized lightweight panels are used together
up to
-
10 %*
Guaranteed mechanical properties of flat-rolled products from alloy 1581 (5181)
Temper
Thickness, mm
Mechanical properties
UTS, MPa
YS, MPa
El, %
O/H112
1,5-6,0
345
205
15
6,0-10,5
350
200
15
10,5-50,0
340
190
13
H116/H321
4
390
280
13
10
370
255
12
Guaranteed mechanical properties of profiles made from alloy 1581 (5181)
Temper
Thickness, mm
Mechanical properties
UTS, MPa
YS, MPa
El, %
O
All thicknesses
355
215
12
Mechanical properties of welded joints
Property
FSW
MIG/TIG
σ joints/σ base metal
>0,95
>0,9
Corrosion resistance
Test
Standard
Standard requirements
Value
NAMLT
ASTM G67
<15 mg/cm2
2 mg/cm2
ASSET
ASTM G66
Not lower than PB
РВ
Implemented solutions based on alloy 1581 (5181)
A hydrofoil vessel based on hovercraft technology
Reduction in weight
7,2 %
** compared to a standard ship superstructure solution, which uses alloy 1561 and Welded large-sized lightweight panels
A 4.7-metre speedboat
Reduction in weight
12%
*** compared to a similar structure made from alloy 5083
Source: www.seatech.ru;
www.broboats.ru
**** the image is for informational purposes only.
RUSAL’s Products
Al-Sc product
Slabs
Billets
Wire rod
Powder, 3D printing
Foil
1ХХХ
-
-
-
-
-
5ХХХ
yes
yes
-
-
-
7ХХХ
-
-
-
-
-
8ХХХ
-
-
-
-
-
The products meet the requirements of Russian and international standards, as well as customer specifications.
Contacts:
Aleksandr Krokhin,
Head of Department of Casting Technology and New Product Development
tel.: +7 (495) 720-51-70
Irina Gavrilova,
Head of Sales Department, Russia and the CIS countries
tel.: +7 (495) 720-51-70