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Sinterform-Gleitlager-Technik AG Telefon: +41 43 322 32 60
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Gunmetal (Copper-Tin-Zinc cast alloys)
DIN 1705 bzw. DIN EN 1982
 
Alloy  EN 
 number 
 Density 
ca.
    Composition    
 in % of weight 
Properties and use
CuSn5Zn5Pb5-C 

DIN EN 1982
(Rg5)



CC491K  8.7 Cu 83,0 - 87,0
Sn 4,0 - 6,0
Zn 4,0 - 6,0

Pb 4,0 - 6,0
Construction material. The main areas of application are water and steam fitting housings up to 255 °C, pump housings and thin-walled, intricate castings and machined parts for mechanical and apparatus engineering and shipbuilding. Is usually replaced as a bearing material with Cu Sn7 Zn4 Pb7-C today.
 
Important
tempers
Tensile Strength
Rm
N/mm²
Yield Stress
Rp0,2

N/mm²
Elongation
A
%
Hardness
HB
GZ
GC

≥ 250
≥ 250
≥ 110
≥ 110
≥ 13
≥ 13
≥ 65
≥ 65
   Product with information obligations to REACH-Legislation

Comparable Specifications::
CuSn5ZnPb, 2.1096, DIN 1705 (Rg 5)
C83600 UNS
LG2, BS 1400
 

 

Alloy EN 
 number 
 Density 
ca.
    Composition    
 in % of weight 
Properties and use
CuSn7Zn4Pb7-C 

DIN EN 1982
(Rg7)



CC493K  8.8 Cu 81,0 - 86,0
Sn 5,2 - 8,0
Zn 2,0 - 5,0

Pb 5,0 - 8,0
Most common, low-budget gunmetal alloy for plain bearings. Still has good dry-running properties and sufficient wear resistance at medium hardness. Also suitable when unhardened shafts and light edge pressure are used.
Short-chipping material, good machinability, good corrosion resistance (even in seawater), soft solderable and to a limited extent hard solderable. The main areas of application are plain bearings and bearing bushings for general mechanical engineering..
 
Important
tempers
Tensile Strength
Rm
N/mm²
Yield Stress
Rp0,2

N/mm²
Elongation
A
%
Hardness
HB
GZ
GC

≥ 260
≥ 260
≥ 120
≥ 120
≥ 12
≥ 12
≥ 70
≥ 70
   Product with information obligations to REACH-Legislation

Comparable Specifications::
CuSn7ZnPb, 2.1090, DIN 1705 (Rg 7)
C93200 UNS
 

 

 Alloy    
  
 Density 
ca.
    Composition    
 in % of weight 
Properties and use
CuSn10Zn 
(Rg10)
DIN 1705

No longer
included in
DIN EN 1982
norm.
 2.1086  8.7 Cu 86,0 - 89,0
Sn 9,0 - 11,0
Zn 1,0 - 3,0

Pb ≤ 1,5
This hard gunmetal alloy is used for more demanding fittings, plain bearing shells and bushes, also for worm wheels with low sliding speeds. It has only moderate dry-running properties.
 
Important
tempers
Tensile Strength
Rm
N/mm²
Yield Stress
Rp0,2

N/mm²
Elongation
A
%
Hardness
HB
G ≥ 260
≥ 130

≥ 15

≥ 75
   Product with information obligations to REACH-Legislation

Comparable Specifications::
C90500 UNS
G 1, BS 1400
 

 

 We also supply Plain Bearings to DIN 1850.

We supply:
GZ
GC
G resp. GS
GK resp. GM
= Centrifugal casting
= Continuous casting
= Sand casting
= Gravity die casting