Leaded Brass Wire

Leaded Brass Wire

  • BS249
  • IS:319 Gr. l & ll
  • IS:8364 Gr. l & ll
  • BS:2874 CZ121Pb3
  • CuZn39Pb3
Chemical Requirements Grade I Grade II Grade III
Copper 56.0 – 59.0% 60.0 – 63.0% 60.0 – 63.0%
Lead 2.0 to 3.50% 2.50 – 3.70% 0.50 – 1.50%
Iron 0.35% max 0.35% max 0.20% max
Total Imp. Excl. Iron 0.70% max 0.50% max 0.50% max
Zinc Remainder Remainder Remainder

 

Physical Properties Grade I Grade II Grade III
Condition Size T.S. MPA EL% Min T.S. MPA EL% Min T.S. MPA EL% Min
Annealed (O) 6-25
25-50
50 above
345
315
285
12
17
22
355
305
275
15
20
25
315
285
255
22
27
32
Half-Hard (HB) 6-12
12-25
25-50
50 above
405
395
355
325
4
6
12
17
395
385
345
315
7
10
15
20
355
345
305
285
8
12
22
27
Hard (HD) 6-12
12-25
550
485

4
550
485

4
460
400

4

 

Fabrication Properties Grade I Grade II Grade III
Capacity for being
Cold worked Poor Poor Poor
Hot formed Fair Fair Fair
Machinability Rating 100% 90% 90%
Suitability for soldering Excellent Excellent Excellent
Suitability for Brazing Good Good Good

 

Uses
Precision Components, Hardware, Hinges, Lock Bodies, Screws, Nuts & Bolts
Gr II : Gear, Pinions, Precision, Automobile, Electronic Parts
Gr III : Precision Components Machining with Riveting Operation

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