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Calculator version 1.1
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OUR STOCK CONCAST

Tolerances and machining allowances

Tubes and solids Allowance Tolerance Allowance Tolerance
  on finished size cast size on finished size cast size
         
  O.D. O.D. I.D. I.D.
0 - 76 mm 1,3 mm + 0 / + 0,6 mm - 1,3 mm - 0 / - 1,1 mm
76 - 114 mm 2,0 mm + 0 / + 0,8 mm - 2,3 mm - 0 / - 1,4 mm
114 - 140 mm 2,7 mm + 0 / + 1,0 mm - 2,5 mm - 0 / - 1,7 mm
140 - 229 mm 4,1 mm + 0 / + 1,3 mm - 3,4 mm - 0 / - 1,9 mm
         
Rectangles Allowance Tolerance Allowance Tolerance
  on finished size cast size on finished size cast size
         
  Thickness Thickness Width Width
0 - 140 mm 1,7 mm + 0 / + 1,0 mm 1,1 mm + 0 / + 1,0 mm
140 - 304 mm 2,2 mm + 0 / + 1,0 mm 1,6 mm + 0 / + 1,3 mm
> 304 mm 4,1 mm + 0 / + 2,5 mm 3,2 mm + 0 / + 2,5 mm
         

Standaardlength
: approx. 3650 mm, 2440 mm and 1220 mm.

The given weights are theoretical.
Standard Concast 954 and Concast 959 are produced oversized to finish machine to nominal size.

Heat treatment

Heat treatment  
Stress Relieving 316 xC (wallthickness/ 25 mm) x 60 min
Solution Anneal 870 / 910 xC for 1 hr / WQ
Tempering 620 / 660 xC for 1 hr / AC
   
Machinability Rating: 60 (C36000, Free Cutting Brass = 100)
   
Joining Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene Not recommended
Carbon shielded arc welding Fair
Gas shielded arc welding Very good
Coated metal arc welding Good

Concast® aluminiumbrons

Chemical composition Cu Fe Ni Al Mn
Concast 954 83,0 min. 3,0 - 5,0 0 - 1,5 10 - 11,5 0 - 0,5
Concast 959 rest 3,0 - 5,0 0 - 0,5 12 - 13,5 0 - 1,5
 
Mechanical properties 954 959
  slechts ter indicatie
Standard ASTM B505 - C95400 ASTM B505 - C95900
Tensile strength 586 N/mm² min. 703 N/mm² (typisch)
0,2% Yield strength 221 N/mm² min. 407 N/mm² (typisch)
Elongation 12% min. 1% (typisch)
Hardness Brinell (3000 kg) 170-190 241 min.
 
Physical properties  
Density 7,45 Kg/dm³ 7,20 Kg/dm³
Coefficient of Thermal Expansion 16,2 10-6 /°C 16,2 10-6 /°C
Magnetic Permeability
(F.S. = 16 KA/m)
1,27  
Thermal conductivity 58,7 W/m.K 42 W/m.K
Electrical conductivity 7,5m/Ω.mm² 6m/Ω.mm²
Specific heat capacity 419 J/kg.K 419 J/kg.K
Modules of Elasticity 107 GPa