CW714R
CW714R, classified as naval brass, is prominently utilized in the fabrication of machine hardware, screw machine products, and valve stems. This particular variant of naval brass, denoted as CW714R, stands out as an optimal choice for applications involving hot forging, pressing, and machining. Notably, it boasts elevated ductility, making it a favorable option, and it excels in terms of both electrical and thermal conductivity. Moreover, CW714R naval brass exhibits commendable resistance to creep and impressively high impact strength.
CHEMICAL COMPOSITION
Elements | Min (%) | Max (%) |
Cu | 59.00 | 61.00 |
Pb | 0.40 | 1.00 |
Sn | 0.50 | 1.00 |
Fe | – | 0.10 |
Ni | 0.00 | 0.30 |
Total Others | – | 0.20 |
Zn | Remainder |
MECHANICAL PROPERTIES ACCORDING TO EN12164 (AS PER TEMPER R410)
Range (mm) | From | To | UTS Min (N/mm²) | PS Min (N/mm²) | Elongation Min (%) | Hardness Min (HV) | Hardness Max |
Round (Dia) | 2 | 50 | 410 | 250 | 18 | 125 | – |
Hex (A/F) | 3 | 40 | 410 | 250 | 18 | 125 | – |
Square (A/F) | 3 | 40 | 410 | 250 | 18 | 125 | – |
Rectangle (Thickness) | 3 | 50 | 410 | 250 | 18 | 125 | – |
PHYSICAL PROPERTIES | |
Melting Point – Liquidus°F | 1650 |
Melting Point – Solidus°F | 1630 |
Density lb/cu in. at 68°F | 0.305 |
Specific Gravity | 8.44 |
Electrical Conductivity % IACS at 68°F | 26 |
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F | 67 |
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) | 11.8 |
Specific Heat Capacity Btu/ lb /°F at 68°F | 0.09 |
Modulus of Elasticity in Tension ksi | 15000 |
Modulus of Rigidity ksi | 5600 |
FABRICATION PROPERTIES | |
Technique | Suitability |
Soldering | Excellent |
Brazing | Good |
Oxyacetylene Welding | Not Recommended |
Gas Shielded Arc Welding | Not Recommended |
Coated Metal Arc Welding | Not Recommended |
Spot Weld | Not Recommended |
Seam Weld | Not Recommended |
Butt Weld | Fair |
Capacity for Being Cold Worked | Poor |
Capacity for Being Hot Formed | Good |
Forgeability Rating | 90 |
Machinability Rating | 70 |