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CuZn21Si3P

CuZn21Si3P

EN12163 / EN12164 / EN12165

Typical Uses

  • Automotive
  • Industrial
  • Marine
  • Water
  • Plumbing

CW724R (ECO BRASS) has the highest performance among the Lead-Free copper alloys, well known for its excellent machinability and forgeability, perfect stress corrosion cracking and dezincification resistant & has high strength equivalent to stainless steel.

Bar Length : 3000mm-4000mm
Round : 13-60mm
Hexagonal : 15-50mm
Square : Consult Mill
Rectangle : Consult Mill
Product availabillity

CW724R (CuZn21Si3P)

Chemical Composition

(%max, unless shown as range or min)

Cu Al Si Pb P Fe Sn Ni Mn Zn Others Total
Min/Max 75.0-77.0 0.05 2.7-3.5 0.10 0.02-0.10 0.3 0.3 0.2 0.05 Rem 0.2

Standard Temper Designation:

* H02 – Half Hard

Mechanical Properties

(EN12163 / EN12164 / EN12165)

Material Condition Nominal Cross-Sectional Dimension Tensile
Strength
Rm
N/mm2
min.		 0.2% Proof
Strength
Rp0.2
N/mm2
approx.		 Elongation
A
%

min.

 Hardness
HB

approx.
Diameter (mm) Across – Flats (mm)
From Over Up to and
including		 From Over Up to and
including
M All All As Manufactured
R500 6 — 80 35 — 80 500 450 15 —
H130 6 — 80 35 — 80 — — — 130-180
R600 10 — 40 15 — 40 600 (300) 12 —
H150 10 — 40 15 — 40 — — — 150-220
R670 2 — 20 2 — 15 670 (400) 10 —
H170 2 — 20 2 — 15 — — — (170)
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