| Free Cutting Brass Rods |
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Use: Free Cutting Brass Rod is also known as free machining brass or leaded brass and is mainly used for high speed machining like fasteners, gears, architectural extrusions, automotive engineering parts, etc. as it is corrosion resistance and has excellent machine ability.
• Grade-1 (IS 319/89)
• Grade-2 (IS 319/89)
• BS 2874/86 - Cz121 Pb3
• Cz124 |
|
| Chemical Requirements |
Grade I |
| Copper |
56.0 - 59.0% |
| Lead |
2.0 to 3.50% |
| Iron |
0.35% max. |
| Total Imp. Excl. Iron |
0.70% max. |
| Zinc |
Remainder |
| Physical Properties |
| Condition |
Size |
T.S. MPA |
EL% Min |
| Annealed (O) |
6-25
25-50
50 above |
345
315
285 |
12
17
22 |
| Half-Hard (HB) |
6-12
12-25
25-50
50 above |
405
395
355
325 |
4
6
12
17 |
| Hard (HD) |
6-12
12-25 |
550
490 |
-
4 |
| Fabrication Properties |
| Capacity for being |
|
| Cold worked |
Poor |
| Hot formed |
Fair |
| Machinability Rating |
100% |
| Suitability for soldering |
Excellent |
| Suitability for Brazing |
Good |
| Uses |
| Precision Components, Hardware, Hinges, Lock Bodies, Screws, Nuts & Bolts |
|
|
| Chemical Requirements |
Grade II |
Grade III |
| Copper |
60.0 - 63.0% |
60.0 - 63.0% |
| Lead |
2.50 to 3.70% |
0.50 to 1.50% |
| Iron |
0.35% max |
0.20% max |
| Total Imp. Excl. Iron |
0.50% max |
0.50% max |
| Zinc |
Remainder |
Remainder |
| Physical Properties |
| Condition |
Size |
T.S. T.S. MPA |
EL% Min |
T.S. MPA |
EL% Min |
| Annealed (O) |
6-25
25-50
50 above |
355
305
275 |
15
20
25 |
315
285
255 |
22
27
32 |
| Half-Hard (HB) |
6-12
12-25
25-50
50 above |
395
385
345
315 |
7
10
15
20 |
355n
345
305
285 |
8
12
22
27 |
| Hard (HD) |
6-12
12-25 |
550
485 |
4 |
460
400 |
4 |
| Fabrication Properties |
| Capacity for being |
|
|
| Cold worked |
Poor |
Fair |
| Hot formed |
Fair |
Excellent |
| Machinability Rating |
90% |
80% |
| Suitability for soldering |
Excellent |
Excellent |
| Suitability for Brazing |
Good |
Excellent |
| Uses |
Gr II : Gear, Pinions, Precision, Automobile, Electronic Parts
Gr III : Precision Components Machining with Riveting Operation |
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| Forging Brass Rods |
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Use: It is mainly used for manufacturing forged components and pressing materials like knobs, hardware’s, handles, valve and fuse bodies, brass battery terminal connectors, valve components, defence components etc.
• Cz122
• IS 8737
• IS 3488/80 |
|
| Chemical Requirements |
CuZn42Pb2 |
CuZn40Pb2 |
| Copper |
56.5 - 60.0% |
57.0 - 59.0% |
| Lead |
0.60 to 2.0% |
1.5 to 2.5% |
| Iron |
0.30% max |
0.40% max |
| Total Imp. Excl. Iron |
0.20% max |
0.70% max |
| Zinc |
Remainder |
Remainder |
| Physical Properties |
| Tensile Strength |
380 Mpa Min |
40 kg/mm2 Min. |
| Elongation % |
25% Min |
18% Min. |
| Izod Value |
- |
2.0 KJ min |
| Fabrication Properties |
| Capacity for being |
|
|
| Cold worked |
Poor |
Poor |
| Hot formed |
Excellent |
Excellent |
| Hot forgeability rating |
100% |
100% |
| Machinability Rating |
80% |
80% |
| Suitability for soldering |
Excellent |
Excellent |
| Suitability for Brazing |
Good |
Good |
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| High Tensile Brass Rods |
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Use: High Tensile Brass Rods are also know as Manganese Brass and is used in manufacturing components like welding rods, valves, marine components, pump rods, etc. due to its high strength and resistance to corrosion.
• IS 8737 / AMD-2 |
|
| Chemical Requirements |
HT1 |
HT2 |
| Copper |
56.0 - 60.0% |
56.0 - 61.0% |
| Lead |
0.20 to 1.50% |
0.50 to 1.50% |
| Iron |
0.20 to 1.25% |
0.20 to 1.50% |
| Tin |
0.20 to 1.0% |
1.0% max |
| Aluminum |
0.2% max |
0.30 to 2% |
| Manganese |
0.25 – 2.0% |
0.50-2.0% |
| Total Imp. |
0.50% max |
0.50% max |
| Zinc |
Remainder |
Remainder |
| Physical Properties |
| Condition |
Size |
T.S. MPa |
EL% Min |
T.S. MPa |
EL% Min |
| As manufactured |
All Size |
430 min |
20% |
460 min |
20% |
| Cold-worked & Stress |
10-40 |
480 min |
12% |
520 min |
12% |
| Relieved |
40 above |
|
|
500 min |
15% |
| Fabrication Properties |
| Capacity for being |
|
|
| Cold formed |
Poor |
Fair |
| Hot worked |
Good |
Good |
| Machinability Rating |
30% |
30% |
| Resistance to Corrosion |
Excellent |
Excellent |
| Suitability for soldering |
Excellent |
Fair |
| Uses |
HT1 is suitable for Soldering
Ht2 is suitable for Machining |
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| Lead Free Brass Rods |
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Use: These rod are also known as Reverting Quality Brass Rod and is mainly used in blanking, riveting, bending, hot forging, watch case and belts, etc.
• IS 4413/81
• Cz108 |
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| Chemical Requirements |
CuZn35Pb1 |
CuZn35 |
| Copper |
62.0 - 65.0% |
63.0 - 68.0% |
| Lead |
0.75 to 1.50% |
0.02% max. |
| Iron |
0.10% max |
0.05% max |
| Total Imp. |
0.50% max |
0.30% max |
| Zinc |
Remainder |
Remainder |
| Physical Properties |
| Condition |
T.S. MPa |
EL% Min |
T.S. MPa |
EL% Min |
| Quarter Hard (HA) |
325-390 |
30% |
340-345 |
30% |
| Half-Hard (HB) |
400-490 |
20% |
420-510 |
15% |
| Hard (HD) |
500-685 |
15% |
- |
- |
| Extra Hard (HE) |
695-885 |
5% |
- |
- |
| Fabrication Properties |
| Capacity for being |
|
| Cold forming |
Excellent |
| Machinability Rating |
70% |
| Bending |
Excellent |
| Riveting |
Excellent |
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| Profile and Flat Brass Rods |
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• BS249
• IS: 319 Gr. l & ll
• IS: 8364 Gr. l & ll
• BS: 2874 CZ121Pb3
• CuZn39Pb3 |
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| Shape |
Size |
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Round Rods |
4mm to 100mm |
 |
Brass Bars |
4mm to 100mm |
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Rectangle Bars |
4mm to 60mm |
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Square Rod / Bars |
4mm to 60mm |
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Brass Hollow Rods |
As per requirement |
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