CuZn23Al4

High resistance brass. Excellent mechanical characteristics, good erosion resistance under heavy loads, sea corrosion and low temperatures without embrittlement. It does not produce sparks.

Used in shipbuilding, mechanical and chemical industry, for civil engineering equipments, in faucets and bolt industry.

It is suitable for the manufacturing of press nuts, press bearings, rings, guides subjected to shocks and at low speeds of movement under heavy loads, such as power showels, bridge cranes, tangent wheels, etc...

(Identical chemical compound and mechanical characteristics according to the standards NF A 53-703 and GAM-MM12).

 

Main standards and correspondences:

NFA
EN
ARMY
AIR
DIN
ASTM
53 703
-
GAM MM12
9070
1709

B.147-8B
UNI
NBN
ISO
BS
UNS
SAE
1696
-
1338
1400 /HTB2
C86300/86700
430A

 

Chemical compound of cast products (NFA 53-703)
Agent:
Cu
Sn
Pb
Zn
Fe
Ni
Mn
Al
Si
P
Mini :

60

0,20

0,20

20,0

1,5
2,5

2,5

3,0

-

-
Maxi :

66

27,0

 3,0

4,0

5,0

-

-

 

Mechanical characteristics of cast products (NFA 53-703):
Process

Tensile strength traction Rm in MPa

Conventional elastic limit at 0,2 % (indicatif) Rp0,2 in MPa
Stretching after breaking A %

Hardness Brinell HBS

S (sand casting)

C (casting)

500

250

8

160