UBA Positive list 4MS

Our alloys

From December 1, 2013, the German Federal Agency for the Environment (UBA) standards published in April 2013, will come into force in Germany: this will specify the positive list of alloys for the production of components destined for coming into contact with drinking water.
After a 2-year transition period this regulation will become compulsory as from December 1, 2015.

Having timeously received the UBA agency’s provision, Forelli Pietro srl has already adapted its production in full compliance with said standard, already supplying all its clients with materials conforming to and anticipating these future compulsory rules.

Chemical Composition %

Alloy designation Cu Pb Al Si Fe Sn Ni Mn As Zn
CB770S 62 – 64 0,2 – 1,6 0,5 – 0,7 0,02 max 0,3 max 0,3 max 0,2 max 0,1 max 0,04 – 0,14 resto

 

Alloy designation Cu Sn Pb Zn Ni Fe Sb S P Mn
CB499K 84 – 88 4 – 6 0,2 – 3 4 – 6 0,1 – 0,6 0,30 max 0,10 max 0,04 max 0,04 max 0,02 max

Physical properties

Commercial designation Density Kg/dm³ Electrical conductivity % IACS Machinability rating % (free-machining brass = 100) Linear shrinkage % Optimum casting range °C Lower melting point °C
CB770S 8,41 22 70 1,8 – 1,9 960 – 1040 900
CB499K 8,7 12 – 14 80 1,4 – 1,7 1100 – 1250 855

Mechanical properties

Commercial designation Tensile strenght R N/mm² Yield strenght Rr (0,2) N/mm² Elongation A % Hardness Brinell HB
CB770S 380 – 420 230 – 280 28 – 35 85 – 100
CB499K 200 – 240 90 – 110 13 – 19 60 – 75

We have a large stock of alloys that allow us to respond promptly to the requests of all our customers.

Contact us

Our alloys

Brasses

Low Lead
Brasses

Special high
strenght Brasses

Aluminium
Bronzes

Tin Bronzes

UBA Positive
List 4MS