Molytun

Buy tungsten heavy metal (DensM)

High-density tungsten heavy alloys for balancing, radiation shielding and vibration damping.

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Tungsten heavy metals (DensM) are sintered alloys with very high density. They are used for balancing weights, radiation shielding, vibration damping and applications where a lot of mass is needed in a small space. Machinable and easy to work. Common grades are W90NiFe and W92.5NiFe (in stock as DensM 170 and DensM 175); higher densities such as W95NiFe and W97NiFe (DensM 180 and DensM 185) and the non-magnetic WNiCu variant are available on request. Our DensM grades are named by density (DensM170, DensM175, DensM180, DensM185); in the market, tungsten heavy metals of this class are also sold under trade names such as Densimet® or Triamet®.

Tungsten heavy alloy grades (WNiFe / WNiCu)

≈ 17.0 g/cm³ · 90 % W · magnetic · ASTM B777 Cl. 1 · in stock
W90NiFe (DensM 170)
≈ 17.5 g/cm³ · 92.5 % W · magnetic · Cl. 2 · in stock
W92.5NiFe (DensM 175)
≈ 18.0 g/cm³ · 95 % W · magnetic · Cl. 3 · on request
W95NiFe (DensM 180)
≈ 18.5 g/cm³ · 97 % W · magnetic · Cl. 4 · on request
W97NiFe (DensM 185)
≈ 17.0 g/cm³ · Ni-Cu matrix, e.g. W90NiCu · on request
WNiCu (non-magnetic)
machinable: turning, milling, drilling
Machining

Available sizes

72 sizes available — net prices for business customers.

DimensionGradeWeightAvailabilityPrice (net)Item no.Link
Ø 4,5 mm · 300 mm langDensM17080 gIn stock28,80 €D45300-1
Ø 6,2 mm · 400 mm langDensM170210 gIn stock75,60 €D6400-1
Ø 6,2 mm · 400 mm langDensM175210 gIn stock77,70 €D6400-2
Ø 7,2 mm · 400 mm langDensM175290 gIn stock107,30 €D7400-2
Ø 8,2 mm · 400 mm langDensM170360 gIn stock129,60 €D8400-1
Ø 8,2 mm · 400 mm langDensM175370 gPre-order · 5 wks136,90 €D8400-2
Ø 9,2 mm · 400 mm langDensM175470 gIn stock173,90 €D9400-2
Ø 10,2 mm · 500 mm langDensM170690 gIn stock210,45 €D10500-1
Ø 10,2 mm · 500 mm langDensM175720 gIn stock223,20 €D10500-2
Ø 10,3 mm · 270 mm langDensM170380 gIn stock115,90 €D10270-1
Ø 10,3 mm · 680 mm langDensM170960 gIn stock292,80 €D10680-1
Ø 11,2 mm · 500 mm langDensM170840 gIn stock256,20 €D11500-1
Ø 11,2 mm · 500 mm langDensM175860 gIn stock266,60 €D11500-2
Ø 12,2 mm · 500 mm langDensM170990 gIn stock301,95 €D12500-1
Ø 12,2 mm · 500 mm langDensM1751,02 kgPre-order · 5 wks316,20 €D12500-2
Ø 12,2 mm · 650 mm langDensM1701,29 kgIn stock393,45 €D12650-1
Ø 12,3 mm · 65 mm langDensM170131 gIn stock39,96 €D1265-1
Ø 12,3 mm · 370 mm langDensM170750 gIn stock228,75 €D12370-1
Ø 13,2 mm · 650 mm langDensM1701,51 kgIn stock460,55 €D13650-1
Ø 13,2 mm · 650 mm langDensM1751,56 kgIn stock483,60 €D13650-2

Frequently asked questions about tungsten heavy metal

Which tungsten heavy alloy grades does Molytun offer?

We supply the common WNiFe grades to ASTM B777: W90NiFe (approx. 90 % tungsten, ~17.0 g/cm³) and W92.5NiFe (approx. 92.5 % W, ~17.5 g/cm³) from stock as DensM 170 and DensM 175. Higher densities such as W95NiFe (~18.0 g/cm³) and W97NiFe (~18.5 g/cm³) and the non-magnetic WNiCu variant (e.g. W90NiCu) are available on request.

What is the difference between WNiFe and WNiCu?

WNiFe (nickel-iron matrix) is mechanically stronger and more economical, but magnetic. WNiCu (nickel-copper matrix) is non-magnetic and therefore the right choice when magnetism interferes — e.g. in measurement and sensor technology. Both reach comparable densities.

Why tungsten heavy metal instead of lead?

DensM is significantly denser than lead, non-toxic and machinable — ideal where maximum mass or shielding is required in a small space.

Can DensM be machined?

Yes, tungsten heavy metal can be machined (turning, milling, drilling).

Which DensM grade corresponds to Densimet® or Triamet®?

Densimet® (Plansee) and Triamet® (Wolfram Industrie) are trade names for tungsten heavy metals of the same material class (WNiFe or WNiCu to ASTM B777). Ordered by density: DensM175 sits in the class of Densimet® D176 / Densimet 176 (≈ 17.6 g/cm³), while DensM180 and DensM185 cover the higher densities. These brands belong to their respective owners; we supply equivalent WNiFe/WNiCu materials to ASTM B777.