Products

BIOBRASS

Environmentally Friendly Lead Free Cutting Brass

  • ENVIRONMENTALLY FRIENDLY
    • No lead, or harmful substances - Suitable for water supply
  • EXCELLENT CUTTING PROPERTIES
    • Featuring silicon and manganese
  • EXCELLENT HOT FORGING ABILITY
    • Wide range of hot-forging temperature - Ideal for unique product designs
  • GOOD MECHANICAL PROPERTIES
    • Higher strength than brass - Ideal for machine parts
  • EXCELLENT DEZINCIFICATION AND CORROSION RESISTANCE
    • Dissolving zinc from the alloy enhances corrosion resistance property

Chemical composition

Cu Zn Si Mn P
wt% 68~73 Rem. 1.5~3.5 0.1~3.0 0.01~0.3

Environmental friendly

Pb Cu Zn others
Standard Max. 0.001(㎎/L) 0.1(㎎/L) 0.3(㎎/L) Taste/Smell/Color/Turbidity/Antimony/Cadmium/ Chrome6+/Selenium/Iron/Mercury
BIOBRASS None 0.007 0.129 Passed

※ Passed KC standard dissolution test (area 100㎠/L)


Physical Properties

Melting Point - Liquidus 878 ℃
Melting Point - Solidus 853 ℃
Density 8.28 g/㎤ at 20 ℃
Electrical Conductivity 8 %IACS at 20 ℃
Thermal Conductivity 37.7 W/m·°K at 20℃

Excellent Cutting Properties

※ Fine chips & proper cutting resistance torque


Fine Cutting Surface

※ C3604 : Free cutting Pb-Brass


Excellent Hot Forging Property


Good Mechanical Properties


Excellent Dezincification Resistance

BIOBRASS C3604(Pb-Brass) C4691(Bi-Brass)
60㎛ 1400㎛ 1260㎛

※ ISO 6509 TEST results - Dezincification depth