MATERIALS AND FINISHES
     
  All the materials used in producing Cooke Brothers hinges comply with or exceed current British/European manufacturing standards.  
     
Table 1    
Materials    
  Hinge Flap Hinge Pin
  Grade Standards Grade Standards
Stainless Steel
      303 BS 970
  304 BS 1449 Part2 1983 304 BS 1554
  304 2A (2A brigt finish upto 2mm thick) 304 BS 1554
  304 2B (2B dull finish 2.64mm and above) 304 BS 1554
  316 # BS 1449 part 2 316 BS 1554
Mild Steel
  CR4 BS 1449 part 1 B.D.M.S BS 1052 / BS 970
  HR4 BS 1449 part 1 B.D.M.S  
  CS4 BS 1449 part 1annealed and re-rolled B.D.M.S  
  CS4 Pre-plated material B.D.M.S  
  CR4 # Zinc pre-plated B.D.M.S  
  CR4 # Galvanized pre-plated B.D.M.S BS 1052-zinc CT
         
Brass
  CZ108 BS EN 1652/BS2870 CZ 108 BS EN 12166 / BS 2873
Aluminium
  3103 BS EN485-515-573 6063 BS EN 1301 / BS 1475
     
# To special order only  
   
  Specification of hinge pin always matches hinge flap material unless otherwise stated.  
     
  The standard ranges of finishes available are shown in the dimension tables, non-standard finishes are available to special order subject to availability and quantity.  
     
Table 2    
Finish Abbreviations Mild Steel Stainless steel Brass Aluminium  
Self colour (mill finish) SC  
Pre-plated steel (Brass) EB †      
Pre-plated steel (Nickel) NP †      
Pre-painted (Bronze) BRZ †      
Bronze Electrophoretic BRZE      
Chrome-plated CP † •††    
Bright polished POL  
Satin Polished SPOL   * * *  
Zinc-plated Zn8 & yellow passivate ZP & cp *      
Zinc-plated Zn8 & yellow passivate ZP & yp *      
Electro Brass plated EBP *      
Pre-coated steel - Zinc ZTEC *      
Pre-coated steel - Galvanized GALV *      
Electro paint - black EP * *    
Powder coat PC * *    
Anodised Silver ANOS       *
     
Finishes available on stocked range where indicated on Data Sheets  
*
Optional finishes available as specials and subject to quantity  
Available where listed  
††
CS4 Annealedd and re-rolled  
     
MATERIALS AND FINISHES