WL NI-770 Ams4777 AMDRY770 Nickel Base Powder Furnace Brazing Gas Atomization Mild Filler Metal Mild Steels
Product Description
The WL-Ni 770 series of braze filler metals are spherical, inert gas atomized, nickel braze alloys containing silicon and chrome.
This alloy offers excellent strength and oxidation resistance at temperatures up to 982 °C (1800 °F). The lower viscosity of the molten alloy allows successful brazing of gaps up to 0.12 mm (0.005 in).
WL Ni-770 filler metals are used in furnace brazing of aircraft and aerospace components, commercial products such as food processing equipment and heat exchangers. Components with joints that are exposed to high stresses in service benefit from brazing with WL Ni-770 filler metals. The lower chromium content makes these filler metals good choices for nuclear applications.
CLASSIFICATION: AWS A5.8 BNi 2, 140F
Equivalent:AMDRY 770/AMS4777
Chemical Composition(%)
| Nominal Composition | Ni | Cr | B | Si | Fe |
| | Bal | 7 | 3 | 4.5 | 3 |
Typical Deposit Characteristics
| Manufacture | Gas Atomization |
| Morphology | Spheroidal |
| Melting point | 999 °C (1830 °F) |
| Gap Size | 0.08 – 0.12 mm (0.003 – 0.005 in) |
| Viscosity | Medium |
| Ductillity | Good |
Particle size (µm)
Granularity:-106+45μm
Other sizes can be produced by customers’ requirement.
Packing Details
Each bottle 5kg/bottles, 4 bottles pack in one carton,
then put cartons onto pallet or Box. OEM packing & label or customized packing methods available.
Applications
Usually used as a brazed filler metal for:
Joining tool steels, mild steels, stainless steels and nickel-based superalloy components. Service conditions up to 982 °C (1800 °F).
Creates joints with good oxidation and corrosion resistance.
The braze filler metal works well in a wide variety of brazing atmospheres, making it very versatile for many different applications.
Type we could offer
| Trademark | Nominal Composition(%) | HRC | Application |
| B | C | Cr | Fe | Mo | Si | W | Ni | Others |
| WLNi-63 | 3.0 | 0.6 | 15.0 | 4.0 | | 4.5 | | Bal. | | 58-61 | Excellent abrasion and corrosion resistance. |
| WLNi-62 | 3.2 | 0.7 | 15.5 | 4.0 | | 4.2 | | Bal. | | 56-64 | shafts, sleeves, pump plungers, sucker rod couplings, bed knives, camshafts, bushings, mill guides, mixer blades, seal rings, brick manufacturing equipment, and conveyor screws. |
| WLNi-705 | 1.5 | 2.2 | 7.0 | 2.0 | | 2.3 | 48.1 | Bal. | | 56-63 | protection from severe sliding abrasion. Used on screw conveyors and augers |
| WLNi-750 | 1.6 | 3.0 | 6.8 | 2.0 | | 1.5 | 48.0 | Bal. | Co: 6.0 | 57-63 | A tough nickel-chromium-tungsten matrix alloy is used to hold extremely hard tungsten-carbide particles. Best used for the most severe abrasive conditions. Finished by grinding. |
| WLNi-225 | 0.8 | | | | | 2.3 | | Bal. | P:2.0 | 13-17 | For glass container mould protection and restoration. Also used for rebuilding automotive parts (clutch components). |
| WLNi-226 | 0.8 | | | | | 2.2 | | Bal. | P:1.9 | 16-21 | Blow heads, edges and repairs blow-blow plungers, guide rings, baffles |
| WLNi-227 | 1.1 | | | | | 2.8 | | Bal. | P:2.1 | 22-27 | For glass container mould protection and restoration. Also used for rebuilding automotive parts (clutch components). |
| WLNi-234 | 1.0 | 0.15 | 4.0 | | 3.0 | 2.8 | | Bal. | P:2.1 | 32-36 | For glass container mould protection and restoration. |
| WLNi-4 | 2.1 | 0.4 | 10.0 | 2.8 | | 2.4 | | Bal. | | 35-40 | Aircraft gas turbines, steam turbine power plants, turbochargers and valves in reciprocating engines, prosthetic devices, heat treating equipment, pollution control equipment, coal gasification and liquefaction systems, and components in pulp and paper mills. |
| WLNi-7631-60F | 1.16 | 2.58 | 6.08 | 1.80 | | 1.82 | 57.66 | Bal. | | | Aircraft gas turbines, steam turbine power plants, turbochargers and valves in reciprocating engines, prosthetic devices, heat treating equipment, pollution control equipment, coal gasification and liquefaction systems, and components in pulp and paper mills. |
| WLNi-42 | 2.0 | 0.4 | 10.0 | 2.5 | | 3.0 | | Bal. | | 35-40 | Less hardness and slightly less abrasion and corrosion resistance. |
| WLNi-22 | 1.0 | 0.1 | 0.05 | 0.03 | | 3.0 | | Bal. | | 28-33 | Bottle moulds, cast iron parts |
| WLNi-22-KW | 1.0 | 0.1 | 0.05 | 0.03 | | 3.0 | | Bal. | P:2.0 | 28-32 | Aircraft gas turbines, steam turbine power plants, turbochargers and valves in reciprocating engines, prosthetic devices, heat treating equipment, pollution control equipment, coal gasification and liquefaction systems, and components in pulp and paper mills. |
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WL NI-770 Ams4777 AMDRY770 Nickel Base Powder Furnace Brazing Gas Atomization Mild Filler Metal Mild Steels Images
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