WOLFRAM HARDMETAL
REFRACTORY METALS & ALLOYS
Fast delivery across critical alloys including Inconel, Invar, Kovar, Mu-Metal and refractory metals.
Wolfram Hardmetal has a robust metal supply chain ensuring consistent material availability.With global sourcing networks, circular recovery streams and transparent logistics, we help protect production from disruption and price volatility.
Premium supply of nickel alloys, cobalt alloys, Invar, Kovar, magnetic alloys and refractory metals for aerospace, energy, electronics and precision engineering. Fast sourcing, certified materials, mill traceability.
Nickel & Superalloys
Inconel 625 (Alloy 625)
High nickel corrosion-resistant superalloy. Uses: aerospace exhausts, chemical service, heat exchangers.
Inconel 718 (Alloy 718)
High-strength nickel alloy. Uses: jet turbines, cryogenic hardware, high-temp fasteners.
Nickel 270
Ultra-high purity nickel. Uses: batteries, catalyst coatings, thin-film deposition.
Magnetic & Glass-Sealing Alloys
Mu-Metal / HyMu 80
80% Ni magnetic shield alloy. Uses: EMI shielding, sensors, transformers.
NiFe 48 / Alloy 48
Glass sealing alloy. Uses: electronics headers, lead frames, feedthroughs.
Alloy 52 / NILO 50
High-nickel seal alloy. Uses: ceramic seals, relay parts, IC packaging.
Alloy 42 / NILO 42
Low-expansion Ni-Fe. Uses: IC lead frames, precision electrics.
Alloy 46 / NILO 46
Glass-seal alloy. Uses: electronics sealing, CRT stems.
ASTM A753 Type 4 – Alloy 79
High permeability magnetic alloy. Uses: shielding, cores, low-loss transformers.
ASTM A753 Type 1
Radiometal 4550 – Ni-Fe magnetic. Uses: solenoids, laminations, meter cores.
ASTM A753 Type 2 – Alloy 50
Soft magnetic Ni-Fe. Uses: relays, actuators, EM components.
Low-Expansion & Dimensional Stability Alloys
Invar 36 (Invar 361, NILO 364)
36% Ni ultra-low expansion. Uses: aerospace tooling, cryogenics, metrology frames.
Ultra 36
Low-expansion Ni-Fe. Uses: thermo-stable precision parts.
Super Invar 32-51
Ultra-stable alloy for optics & metrology. Uses: optical benches, high-stability structures.
ASTM F-15 / Kovar (NILO K)
29% Ni 17% Co sealing alloy. Uses: semiconductor feedthroughs, hermetic packages.
Refractory Metals & High-Temperature Alloys
Molybdenum (Mo)
High-temp structural metal. Uses: furnace parts, aerospace heat shields, sputter targets.
Tungsten (W)
Ultra-dense, heat-resistant. Uses: radiation shielding, aerospace thrusters, counterweights.
Tantalum (Ta)
Corrosion-proof refractory. Uses: chemical plant parts, capacitors, medical implants.
Niobium (Nb / Columbium)
Superconducting & high-temp. Uses: nuclear & aerospace alloys, superconductors.
Rhenium (Re)
Extreme-temp oxidation resistant. Uses: turbine blades, thermocouples, propulsion components.
WOLFRAM HARDMETAL
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Specialist supply of exotic metals & industrial alloys – Inconel, Invar, Kovar, Mu-Metal, NiFe, Alloy 52, TZM, Tungsten, Tantalum, Niobium, Rhenium and more.
Trusted by aerospace, defence, energy, semiconductor and precision engineering sectors. Short lead times. Scrap buyback & recycling streams available.
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