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  5. Free Cutting Brass Rods  
 
 

         

 
     
 

Free Cutting Brass Rods

As per BS 2874-CZ 124

 

CHEMICAL PEQUIREMENTS

 

                Copper                                                  ..                 ..                 ..    60.0 to 63.0%

                Lead                                                     ..                 ..                 ..    2.5 to 3.7%

                Zinc                                                      ..                 ..                 ..    Balance

 

PHISICAL PROPERTIES

 

                Tensile strength                                    ..                 ..                  ..    28 kgs./mm2-min.

                Elongation                                            ..                 ..                       ..    12% min.

 

          

FABRICATION PROPERTIES

                Capacity for being cold worked             ..                ..                   ..    Poor

                Capacity for being hot formed               ..                ..                  ..    Fair

                Machine ability rating (Free cutting brass-100)               ..                  ..    100

                Suitability for Solding                            ..                ..                  ..    Excellent

                Brazing                                               ..                ..                  ..    Good

USES

 

Hardware, Gears, Pinions, Automatic High Speed Screw Machine Parts.

 

As per IS: 319, (BS: 249) BS 2874-CZ 121

         

CHEMICAL PEQUIREMENTS

 

                Copper                                                  ..                 ..                 ..    55.0 to 60.0%

                Lead                                                     ..                 ..                 ..    2.0 to 3.5%

                Zinc                                                      ..                 ..                 ..    Balance

 

PHISICAL PROPERTIES

 

                Tensile strength                                    ..                 ..                 ..    39 kgs/mm2-min.

                                                                                                                                 (25 Tons/Sq. in.)

                Elongation                                            ..                 ..                 ..    15%-min.

 

          

FABRICATION PROPERTIES

                Capacity for being cold worked             ..                 ..                 ..    Poor

                Capacity for being hot formed                ..                 ..                 ..    Fair

                Machine ability rating (Free cutting brass-100)                ..                 ..    90

                Suitability for Solding                          ..                 ..                 ..    Excellent

                Brazing                                              ..                 ..                 ..    Good

USES

 

                Architectural Extrusions, Thresholds, Butts, Hinges, Lock bodies, Screws, Nuts and Bolds.

 
 
 

 

 
 
 

1  High Conductivity Free Machining
    Copper Rods

 

2  Copper-Nickel-Alloy Rods

 

3  Copper Rods & Tubes for General
    Engineering Purposes

 

4  Nickel Silver Alloy Rods

 

5  Free Cutting Brass Rods

 

6  Brass Tubes 63/37

 

7  Manganese Brass Rods

 

8  Aluminium Brass Rods

 

9   Aluminium Silicon Bronze Rods

 

10 High Conductivity Electrolytic Copper      Rods and Tubes

 

11 British Standard Specifications for the      Principal

 

12 Non-Ferrous Casting Alloys

 

13 Aluminium Casting, Alloys for General      Engineering Purposes (Related      specification and trade name)

 

14 Table of sizes, weights & Lengths of       copper wire

 

15  Wrought Alloys and related British       and American Specifications

 

 
 

 

 
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