Nickel and nickel alloy powders

Nickel powder for diamond tool bonds

Nickel content is the main lever on bond hardness and therefore on diamond retention: too soft and the diamonds pull out, too hard and they polish instead of cutting. Our high-purity nickel is published at 99.6% minimum at -325 mesh, alongside a Ni-Cr-Fe-Si-B self-fluxing alloy and nickel silver from the same line, all in production supply for diamond tool bonds, galvanising and decorative finishing.

See: Nickel grades and variants, Compared with Vale and Oerlikon Metco

Nickel alloy powder grades available

Three: high-purity nickel at 99.6% minimum, a nickel-base self-fluxing alloy in the Ni-Cr-Fe-Si-B family, and nickel silver (Cu-Ni-Zn) for a bright silver-white finish. All are published at -325 mesh under an ISO 9001:2015 system. Vale offers a carbonyl nickel and Oerlikon Metco a self-fluxing alloy range; neither publishes all three in one line.

See: Three nickels, one recipe

Nickel silver powder supplier

Nickel silver, a copper-nickel-zinc powder, is published in our range for bright silver-white aesthetic finishing, at -325 mesh alongside the diamond tool grades. Neither Vale's T123 datasheet nor Oerlikon's self-fluxing datasheet offers a nickel silver grade. We do not publish the Ni, Zn and Cu percentages, which is logged as a gap, so ask for the composition if your finish depends on it.

See: Nickel silver row and logged gaps

Alternative to Vale T123 nickel powder for diamond tools

Vale T123 is the reference carbonyl nickel for this work at above 99.8% purity with a 3.8 to 7.0 µm Fisher size, and Vale states it strengthens and toughens diamond tools. Ours is published at 99.6% minimum at -325 mesh. If your bond recipe is written around carbonyl morphology the two are not interchangeable without trials. If you are formulating a bond and want the nickel plus the rest of the matrix from one house, that is our case.

See: Purity and morphology rows

Self-fluxing NiCrBSi alloy powder for pressed segments

Ours is published as a nickel-base Ni-Cr-Fe-Si-B alloy at -325 mesh, aimed at pressed and sintered bond work. Oerlikon Metco publishes its chemistry element by element, for example Metco 15E at Cr 17.0, B 3.5, Si 4.0, C 1.0, Fe 4.0, but that is a thermal spray datasheet with HVOF and plasma parameters. Same alloy family, different process window; a spray grade should not be assumed to drop into a hot press.

See: Self-fluxing chemistry comparison

Nickel powder purity: what do you publish and how does it compare?

99.6% minimum on the high-purity nickel grade. Vale publishes T123 at above 99.8% typical with cobalt below 0.00005%, iron below 0.003% and sulphur below 0.0002%, plus a published bulk density of 1.8 to 2.6 g/cm³ and a Fisher sub-sieve size band. On purity and traceability Vale is genuinely ahead, and for a specification written around carbonyl nickel it is the correct answer.

See: Vale's purity advantage, stated plainly

Nickel powder for decorative and galvanising work

Aesthetics, galvanising and diamond tools are the three published application areas for this range, with nickel silver providing the bright silver-white finish. Buying the finishing grade and the bond grades from one line means one qualification and one set of paperwork, which matters more in a plant that does both than the headline purity difference between suppliers.

See: Nickel powder applications

Do you publish the composition of your self-fluxing nickel alloy?

Not per element, and it is logged as a gap. We publish the alloy family, Ni-Cr-Fe-Si-B, and the -325 mesh cut. Oerlikon publishes full chemistry per product, which is more than we do and is a fair reason to prefer their datasheet when a coating specification is written to element percentages. Ask for ours against the grade rather than inferring it from the family name.

See: Logged documentation gaps

Nickel powder at -325 mesh for pressed and sintered work

All three grades in this line are published at that cut, which suits fine matrix and pressed work rather than thermal spray. Oerlikon's self-fluxing powders are gas atomised at a nominal -106 +45 µm for spraying, and Vale's carbonyl nickel is a much finer sub-sieve product. If your press is set for a -325 mesh fill, this range maps to it directly.

See: Nickel grades and cut, Particle size rows

Why does nickel matter so much in a diamond segment when it is a small fraction of the mix?

Because it is the fraction that sets bond hardness, and bond hardness sets diamond retention. Too soft and the diamonds pull out before they have cut; too hard and they polish rather than cut. Which is why the useful comparison is not purity alone but whether one supplier can move you across nickel, self-fluxing alloy and the rest of the matrix without changing the variance profile of the whole recipe.

See: Bond control in the matrix line, Nickel as the bond hardness lever

How exposed is nickel powder supply to export restrictions compared with tungsten?

Less acute, because nickel is widely traded. The exposure that does exist is corporate rather than material: Vale is a Canadian producer refining in the UK and Oerlikon is Swiss with global stocking, and both are subject to their own jurisdictions' controls and to sanctions policy. Sourcing from an independent producer with a standing import-substitution mandate keeps the bond recipe out of that argument entirely.

See: Supply exposure discussion, Tungsten, where the exposure is sharper

We currently buy nickel, self-fluxing alloy and finishing powder from three vendors. What does consolidating actually save?

Three qualifications, three sets of packaging and three lead times become one, and the variance in the finished bond becomes one supplier's responsibility. All three grades are published here at the same -325 mesh cut under one quality system. What consolidating does not save you is the trial work: if your recipe was built around a carbonyl nickel morphology, a change of morphology needs testing regardless of who supplies it.

See: Three different nickels, one recipe

Can a spray-grade self-fluxing alloy be used in a pressed segment, or do we need a different powder?

Do not assume it drops in. Oerlikon's self-fluxing range is gas atomised to spheroidal particles at a nominal -106 +45 µm on Metco 15E, sold to be sprayed, with fusing temperature and coating hardness published for that purpose. Ours is -325 mesh aimed at pressed and sintered work. The alloy family is the same, the process window is not, and the sensible route is a trial rather than a substitution on paper.

See: Read what the datasheet is for

What should we ask for that is missing from your nickel datasheet?

Apparent density and Fisher sub-sieve size for the nickel grade, per-element composition for the self-fluxing alloy, and the Ni, Zn and Cu percentages for the nickel silver. All three are logged as gaps rather than quietly omitted. Vale publishes bulk density and sub-sieve size, and Oerlikon publishes full alloy chemistry, so the comparison is easy to run once you have our figures in writing.

See: Gap list against the competitors

Does responsible sourcing documentation differ between these nickel suppliers?

It does, and Vale publishes the most: ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018, Copper Mark Joint Due Diligence Standard, and a carbon intensity figure of 38.3 t CO2e per tonne of nickel. Our grades are made under an ISO 9001:2015 system, and we do not publish carbon or due diligence figures. If sustainability reporting is a tender requirement, weigh that honestly rather than assuming parity.

See: Quality and sourcing rows

What are Nickel and nickel alloy powders?

Nickel and nickel alloy powders are Unstrat's Land (Land Domain) capability: Nickel and nickel alloy powders for diamond tool bond matrices and decorative finishing. The range covers high-purity nickel at 99.6% minimum, a nickel-base self-fluxing alloy (Ni-Cr-Fe-Si-B) and nickel silver (Cu-Ni-Zn), used to control bond hardness and diamond retention in cutting and grinding segments, and to give a bright silver-white finish in aesthetic applications.

How do Nickel and nickel alloy powders work?

Nickel and nickel alloy powders deliver their effect through controls bond hardness and diamond retention in cutting and grinding segments, High-purity nickel at 99.6% minimum and Nickel-base self-fluxing alloy (Ni-Cr-Fe-Si-B), capabilities matched to the requirement and confirmed under briefing rather than published.

Who makes Nickel and nickel alloy powders?

Nickel and nickel alloy powders are built by The Specialty Alloys Producer, whose focus is tungsten heavy alloys & specialty metal powders. Unstrat represents The Specialty Alloys Producer to government and enterprise buyers worldwide as an independent, non-aligned prime vendor.

Why choose Nickel and nickel alloy powders over a major-power alternative?

Nickel and nickel alloy powders are sourced from an independent, non-aligned manufacturer, so they carry no major-power disclosure rules, upgrade-locks or political ramifications. Concretely: High-purity nickel, a self-fluxing Ni-Cr-Fe-Si-B alloy and nickel silver: three bond behaviours from one line. The capability is accountable to you, not to a foreign vendor's government and its release schedule.

How are Nickel and nickel alloy powders procured, and where can it be exported?

The bond-control lever in a diamond segment: nickel grades that set bond hardness and diamond retention in cutting and grinding tools, with a decorative silver-white finish on the side. Every engagement begins with a briefing, and export eligibility is confirmed per market under briefing rather than published. Where controlled capabilities are involved, the classification and end-user-certificate chain is confirmed first. Nickel and nickel alloy powders are then sustained in-region by one accountable team from briefing through long-term operation.