High Tensile Brass are alloys of Copper and Zinc. HT2 is a duplex or alpha/beta alloy. Brass alloy HT2 is a versatile high strength, hot workable, machinable engineering alloy sometimes referred to as a Manganese Bronze or High Tensile Brass.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 56.00 | 61.00 |
| Pb | 0.50 | 1.50 |
| Sn | – | 1.00 |
| Fe | 0.20 | 1.50 |
| Al | 0.30 | 2.00 |
| Mn | 0.50 | 2.00 |
| Total Others | – | 0.50 |
| Zn | Remainder |
Mechanical Properties According To IS320 HT2 (As Per Temper HBSR)
| Range (mm) | From | To | UTS Min (MPa) | PS Min (MPa) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 10 | 40 | 520 | – | 12 | – | – |
| 40 | 75 | 500 | – | 15 | – | – |
| Hex (A/F) | 40 | 70 | 500 | – | 15 | – | – |
| Square (A/F) | 40 | 60 | 500 | – | 15 | – | – |
| Rectangle (Thickness) | 10 | 40 | 520 | – | 12 | – | – |
| 40 | 50 | 500 | – | 15 | – | – |
| Physical Properties |
| Melting Point | 865°C |
| Density | 8.63g/cm3 |
| Electrical Conductivity | 0.09 x 10 -6Ω.m |
| Thermal Conductivity | 88.3W/m.K |
| Modulus of Elasticity | 96.5 GPa |
| FABRICATION PROPERTIES |
| Capacity for being Cold formed | Poor |
| Capacity for being Hot worked | Good |
| Machinability Ration | 30% |
| Resistance to Corrosion | Excellent |
| Suitability for soldering | Excellent |
TYPICAL USES
- Gas valves and fittings
- Fasteners
- Pump trim
- Gears
- Locks
- Heavy-duty electrical connectors
- Transmission components
- Marine hardware
- Safety tools and decorative metalwork
