| |
| Basic
Properties - Mechanical Properties |
| BS B25 |
| 0.2% Proof
Stress (N/mm2 )[ksi] minimum |
430 [62.3] |
| Ultimate Tensile Strength
(N/mm2) [ksi] minimum |
580 [84.1] |
| Elongation (%) minimum |
18 |
| Hardness (HBN) |
159-207 |
|
| DTD 498 |
| 0.1% Proof Stress
(N/mm2 )[ksi] minimum |
417 [60.4] |
| Ultimate Tensile Strength
(N/mm2) [ksi] minimum |
587 [85.1] |
| Elongation (%) minimum |
15 |
| Hardness (HBN) |
159-207 |
|
| DTD 504 (Cold Drawn) |
| 0.1% Proof Stress (N/mm2
)[ksi] minimum |
572 [82.9] |
| Ultimate Tensile Strength
(N/mm2) [ksi] minimum |
649 [94.1] |
| Elongation (%) minimum |
10 |
| Hardness (HBN) |
174-210 |
| Magnetic Permeability |
<1.001 |
| Electrical Conductivity |
<38% IACS |
| |
|
 |
High Strength |
| |
|
|
Combination of high strength with good electrical
and thermal conductivity |
| |
|
|
Excellent bearing and anti-friction properties, particularly
when operated against hardened steel |
| |
|
|
Excellent corrosion resistance in marine environments |
| |
|
|
Very low magnetic permeability - less than 1.001 |
| |
|
|
No loss of impact strength down to -196°C |
| |
|
|
Spark resistance |
| |
|
|
Good elevated temperature properties |
| |
|
|
Ease of machining |
| |
|
|
Good marine fouling resistance |
| Elements |
Al |
Cu |
Fe |
Ni |
Si |
Total Impurities |
| Minimum |
|
REMAINDER |
|
2.0 |
0.4 |
|
| Maximum |
0.02 |
|
0.01 |
3.5 |
0.8 |
0.30 |
| Density (Kg.m-1) |
8870 |
| Magnetic Permeability |
<1.001 |
| Young’s Modulus (N/mm2) |
284 x 103 |
| Modulus of Rigidity (N/mm2) |
106 x 103 |
| Poisson’s Ratio |
0.39 |
| Specific Heat, 20°C (J.Kg-1.°K-1) |
419 |
| Electrical conductivity, 20°C (m.Ω-1.mm-2) |
2.85 |
| Thermal conductivity, 20°C (W.m-1.°K-1) |
190 |
| Thermal conductivity, 200°C (W.m-1.°K-1) |
211 |
| Thermal conductivity, 400°C (W.m-1.°K-1) |
232 |
| Electrical resistivity, 20°C (µ.Ω.m) |
0.043 |
| Electrical conductivity at 20°C |
40% IACS |
| Mean coefficient of thermal expansion, 20-400°C (°K-1) |
16.0 x 10-6 |
| Coefficient of static friction against mild steel |
0.45-0.5 |
| Coefficient of dynamic friction against mild steel |
0.26 (dry), 0.33 (wet) |
| |
|
|
MSA-MDS-4FA-BAR |
| |
|
|
BS B25 1991 |
| |
|
|
DTD 498 |
| |
|
|
DTD 504 |
| |
|
|
BS 4577A Type 3/2 |
| |
| Aerospace: |
| Aero engine bearing cages, Aircraft undercarriage components,
Heavily loaded bearings, Motor shafts in helicopters, Components
in head-up display units, Electrical connectors |
| |
 |
| |
| Defence Applications: |
| Bolting for ships and submarines, Mine detection equipment,
Flanges, Swash plate pump components |
| |
|
| |
| Automotive: |
| Valve guides & seats, Small end bushes, Camshaft bushes,
Brake caliper pads, Fuel pump components |
| |
|
| |
| Manufacturing Industry: |
| Resistance welding electrodes, Plastic moulding dies, Electrical
forging dies, Die grips on upsetting machines |
| |
|
| |
| Hydraulic & Mechanical Engineering: |
| Valve bodies, Slipper pads, Thrust pads, Gears, Piston crowns,
Mechanical seals, Clutch plates in marine engines, Bushes in
subsea valves, Electrical contacts, Hose connectors |
| Operation |
Cutting Speed m/min
(ft/min) |
Feed Rate
mm/rev
(in/rev) |
Depth of cut mm
(in) |
| Drilling |
15-40 [50-130] |
0.075-0.5 [0.003-0.02] |
|
| Turning - Roughing |
30-60 [100-200] |
0.25 [0.01] |
2 (0.08) |
| Turning - Finishing |
120-180 [400-600] |
0.12 [0.005] |
0.3 (0.01) |
| Tips |
Carbide tipped using water-soluble
lubricant
A chip breaker may be found necessary for efficient
operation |
| Alloy Comparisons |
Nickel-Aluminium
Bronze |
Aluminium-Silicon
Bronze |
70/30
Copper-Nickel |
HIDUREL
5 |
| Strength (0.2% Proof Stress, N/mm2) minimum |
247 |
220 |
115 |
430 |
| Impact Energy (J) |
23 |
33 |
54 |
27 |
| Electrical Conductivity (%IACS) |
8 |
9 |
5 |
40 |
| Bearing Properties |
Inferior |
Inferior |
Poor |
Good |
|
| Back
to Top |
| |
Disclaimer
Data in this publication is provided solely for the purposes of distribution
of information. Langley Alloys cannot make guarantees with respect to subject
matter or accuracy of this information. Langley Alloys specifically disclaims
all guarantees, expressed, implied or otherwise, including without limitation,
all warranties of merchantability and fitness for a particular purpose. This
publication may include technical inaccuracies or typographical errors. If
errors are found, please make a notification via e-mail to: info@langleyalloys.com |
|
