| Phosphor
Bronze |
|
| This is an
alloy of Copper and Tin to which is added a small quantity of Phosphorus. It is produced
with tin percentage varying between 2 to 7.5%. It used where springness is required in
components. It is also used in manufacture of wire meshed and wire cloth. One of its
important application is in rotary equipments as bushes. The following grades of Phosphor Bronze are manufactured by SAI Industires and its associate companies: 1. Grade 1 |
 |
| Data Sheet:
|
|
Grade 1 |
Grade 2 |
Grade 3 |
||||
| Low Tin Phosphor Bronze | 5% Tin Phosphor Bronze | 7% Tin Phosphor | ||||
| Specifications | ||||||
| Sheet & Strips | BS/2870/PB 102 | BS/2870/PB 103 | ||||
| Tubes | BS 2871/PB 102 | - |
||||
| Rods |
|
BS/2874/PB 104 |
- |
|||
| Wires |
|
BS/2873/PB 102 |
BS/2873/PB 103 |
|||
| Chemical Composition(%) | ||||||
| Phosphorus | 0.02 to 0.40 | 0.02 to 0.40 | 0.02 to 0.40 | |||
| Tin | 3.5 to 4.5 | 4.5 to 5.5 | 6.5 to 7.5 | |||
| Copper | Remainder | Remainder | Remainder | |||
| Mechanical Properties | UTS N/mm2 |
UTS N/mm2 |
UTS N/mm2 |
|||
(A) |
(H) |
(A) |
(H) |
(A) |
(H) |
|
| Sheets & Strips | 340 |
630 |
370 |
650 |
||
| Rods | 340 |
540 |
||||
| Wires | 280 |
695 |
360 |
950 |
390 |
1000 |
| Tubes | 340 |
620 |
||||
Elongation |
Elongation |
Elongation |
||||
(A) |
(H) |
(A) |
(H) |
(A) |
(H) |
|
| Sheets & Strips | 60% | 8% | 65% | 14% | ||
| Rods | 55% | 20% | ||||
| Wires | 55% | 2% | 50% | 55% | ||
| Tubes | 60% | 10% | ||||
Hardness (VPN) |
Hardness (VPN) |
Hardness (VPN) |
||||
(A) |
(H) |
(A) |
(H) |
(A) |
(H) |
|
| Sheets & Strips | 76 |
170 |
80 |
190 | 85 | 215 |
| Rods | 76 |
165 |
80 | 170 | ||
Product Range
|
|
| Strips | 4 mm to 80 mm width 0.4 mm to 5 mm thick |
| Rods | 1.20 mm to 16 mm dia. |
| Wires | 0.2 mm to 9 mm dia. |
| Tubes | 10 mm to 50 mm dia 2 mm to 9 mm thick |
