MN-101

A -10 micron designation is a top size. It means the full distribution passes below 10 microns, with no stated average and no stated lower bound. An APS figure describes something different. It gives the average of the distribution, with material falling on both sides of that number.

The two conventions answer different questions. A top size indicates the largest particle that will be present, which matters when oversize material would foul a screen, a nozzle, or a thin deposited layer. An average indicates where the bulk of the material sits, which matters for reaction rate and packing behavior. Buyers comparing grades specified in different units can use the particle size conversion calculator on this site to cross-reference microns against mesh.

The manganese metal powder range spans a wide band of both purity and particle size, so the two need to be considered together rather than separately.

• MN-101 is supplied at -10 micron and 99.5% minimum purity.
• MN-100 is 99.95% minimum at 2 micron APS.
• MN-103 is 99.9% at -325 mesh, placing it below roughly 45 microns.
• MN-104-S is 99.5% minimum at 150 to 50 microns in a spherical form.
• MN-110 is 99.9% at -35+100 mesh, or roughly 150 to 500 microns.
• MN-120 is 99.9% supplied as 1 inch and down.

MN-101 sits at the fine end of that range at standard commercial purity. It is the grade to specify when a process requires sub-10-micron material without requiring the trace-element control of a 99.9% or 99.95% product.

Purity is best specified against what a process is actually sensitive to rather than maximized by default. Higher-purity manganese grades exist because some applications are affected by trace elements, and in such cases, the specification has to reflect that.

A large share of manganese applications are not sensitive in that way. In pyrotechnics, welding consumables, grinding wheels, diamond tooling, powder metallurgy, and alloy additions, performance is governed by particle size, distribution, and reactivity rather than by the final fraction of a percent of purity. MN-101 at a minimum of 99.5% is specified for that class of work. Where a process specification calls for tighter trace-element control, MN-100 at a minimum of 99.95% meets that requirement.

Yes. Manganese is stocked in several powder grades, as 1-inch-and-down lump under MN-120, and as a sputtering target under MN-180, with a minimum purity of 99.95%. A spherical powder grade, MN-104-S, is available in the 150 to 50 micron range for processes where particle shape affects flow and packing.

Manganese compounds are also stocked, including manganese dioxide and manganese carbonate. Where a project calls for a particle size, form, or packaging not listed, Atlantic Equipment Engineers supplies materials to custom specifications on request.

Available for purchase by the pound with a minimum order requirement of 1 pound, MN-101 displays pricing for its smallest unit size directly on this page upon logging in. Larger production volumes are quoted on request. Buyers who need a quantity, packaging arrangement, or documentation package outside the listed options should contact the sales team directly rather than ordering from the page.

MN-101 is stocked for immediate shipment. It is classified as a hazardous material for transport under UN 3089, metal powder, flammable, n.o.s., Class 4.1, so it is shipped under hazmat rules via LTL freight or FedEx. That classification attaches to the material itself and applies regardless of order size. Because the material is held in stock, lead time is usually determined by carrier hazmat handling rather than by availability.