# Refractory & Rare Metals Source: https://powdchem.com/products/metal-alloy-powders/refractory-rare-metals/ Page type: Material category Metals & alloy powders Refractory and specialty elemental-metal powder inquiries. Build the brief around element, particle architecture and the intended processing environment. [Browse 9 materials]() [Ask about supply]() [Image: Powder material specimens; appearance reference]() ## Choose a material ### Tungsten, molybdenum and rhenium Identify the metal and any powder-production route requirement. Compare particle size, apparent density and compaction criteria for the intended process. #### Tungsten powder Tungsten powder (W) [Selection guide]() [Ask about this material]() W #### Molybdenum powder Molybdenum powder [Selection guide]() [Ask about this material]() Mo #### Rhenium powder Rhenium powder (Re) [Selection guide]() [Ask about this material]() Re ### Titanium, zirconium and hafnium Keep elemental powder distinct from alloy or compound feedstock. Include morphology and required oxygen, nitrogen or hydrogen limits with their analytical methods. #### Titanium powder Titanium powder [Selection guide]() [Ask about this material]() Ti #### Zirconium powder Zirconium powder (Zr) [Selection guide]() [Ask about this material]() Zr #### Hafnium powder Hafnium powder (Hf) [Selection guide]() [Ask about this material]() Hf ### Tantalum, niobium and vanadium Use the exact elemental identity and critical impurity limits. Spherical and irregular powders should be compared against the same process requirements. #### Tantalum powder Tantalum powder [Selection guide]() [Ask about this material]() Ta #### Niobium powder Niobium powder (Nb) [Selection guide]() [Ask about this material]() Nb #### Vanadium powder Vanadium powder [Selection guide]() [Ask about this material]() V ## Material selection guide Start with the material identity and process, then check the details on the proposed datasheet. **Element & impurity limits** Identify the metal and critical interstitial or metallic impurities. An elemental powder and its carbide/oxide are different purchasing items. **Powder profile** Specify particle distribution, spherical/irregular form, flow and apparent density where required by the process. **Processing & supply** Describe compaction, sintering, additive manufacturing or research requirements, and the atmosphere, quantity and destination to be reviewed. ## Before you choose **Does a spherical powder label establish AM suitability?** No. Particle distribution, flow, chemistry and equipment-specific requirements still need to be matched. Include the process and machine powder window in the brief. **What does this directory cover?** Compounds and alloys are linked separately. Any material-specific transport or trade conditions are checked for the actual inquiry. ## What to include in your request A material name or reference datasheet is enough to start. Add any requirements you already know. - Element, assay and critical impurity limits - Particle window, morphology and production route - Flow/density or compaction criteria - Process atmosphere, quantity and destination ### Quantity, samples and documents Nike has no fixed minimum order. Tell us the quantity you need; we’ll check supplier pack sizes and any minimums. We’ll check the proposed grade, sample options, delivery timing and available batch documents. Include any essential COA, TDS or SDS requirements. [How we coordinate documents]() [Samples and testing]() [Send a material request]() ## Applications to explore. [**Coatings & Powder Metallurgy**Metal, alloy and composite powder inquiries for spray, compaction, sintering and additive processes, matched to the equipment and feedstock requirements.]() [**Materials Research**A clearer starting point for comparing research powders, from a recognized formula to a tightly controlled experimental brief.]() ## Related material families. [**Non-Ferrous Metals**10 material directions]() [**Carbide Powders**12 material directions]() [**Silicide Powders**6 material directions]()