Additive Manufacturing Powders

What is Additive Manufacturing?

The additive manufacturing process uses metal powders to “print” particles of metal or nonmetallic products that are sintered, or laser fused together to create a component. Additive manufacturing technology has several advantages including: 

  • Ability to create products of unusual and complex shapes
  • Can be used to combine manufacturing and assembly into a single process
  • Produces less waste compared to other manufacturing processes
  • New design for efficiency gains for current and new applications 

Make the future with TruForm proven powders created by Praxair

Look to Praxair Surface Technologies, one of the leading metal powder suppliers, for TruForm metal powders, know-how, information resources, and supply to turn your AM dreams into reality. With more than 2,500 engineers, technologists and metal powder experts in more than 12 countries, Praxair is committed to innovative processes and to also expanding new technologies to continue to maintain excellence as a leader in the metal powder industry. Praxair offers a full line of cobalt, copper, iron, nickel, and titanium metal powders. 

TruForm powders jar and canisterOur TruForm high-quality, gas atomized metal powders are specifically designed for additive manufacturing to support every part you make with capacity, quality, and experience.

  • Used by leading OEMs across the AM industry

  • Broad product portfolio as well as custom alloys and particle sizing available 

  • Large lot size created of aerospace-grade materials

Engineered for all AM processes and applications

  • Direct metal deposition (DED)

  • Direct metal laser sintering (DMLS)

  • Electron beam melting (EBM)

  • Laser metal deposition (LMD)

  • Metal injection molding (MIM)

  • Selective laser melting (SLM)

TruForm Additive Manufacturing Powders

Powder Characteristics

Our cobalt, iron, nickel, and titanium metal powders for additive manufacturing flow easily and deposit evenly. The result? Successive layers with consistent density and uniform build rates. Ultimately, this helps products meet the mechanical, performance, and final part specifications of 3D printed parts.

particle size distribution

Particle Size Distribution

Powders are available in a wide variety of particle size distributions and can be customized for your applications.

TruForm Metal Powders Quality Control Testing

Quality Control Testing

Our in-house metallurgy QC testing lab allows us to test for multiple variables including full chemistry, flow analysis, density, morphology, and particle size. We supply certificates of analysis detailing all quality tests and offer 100% lot inspection. The Praxair AM Quality Lab is registered as an ISO-9001: 2008, Nadcap AS7101, and AS9100 facility.

questions for your Metal am powder supplier

8 Questions for your Additive Manufacturing metal powder suppliers

AM Metal Powders Buyers Guide

Whether your organization is working in prototypes or mass production of metal AM parts, here are eight important qualities to consider in any AM metal powders supplier. We'll also share how Praxair Surface Technologies is positioned in each of these areas to help your operation meet the demands of metal AM.

AM Metal Powders Buyers Guide(488KB)

Can your metal powder supplier pour thousands of pounds in one melt? We have the capacity to produce lot sizes that are thousands of lbs., while maintaining a high yield percentage in both coarse and fine grain particles.

Can your supplier tailor their powders to your projects? Praxair Surface Technologies manufactures both large and small lots, delivering powders in quantities as low as 10 lbs. We make metal powders optimized for all additive platforms and can also customize composition and sizing to your precise parameters. Praxair stocks standard products in large inventories for fast delivery. Customized products can be delivered in as little as a few weeks, not months.

Does your supplier specialize in only a few compositions? As your metal AM expertise grows, so may your needs for different materials. We manufacture and supply cobalt, copper, iron, nickel, and titanium powders at a mass-production scale.

What technology does your supplier use to manufacture its powders? Praxair Surface Technologies only produces metal powders using vacuum induction melting with argon gas atomization. We also built the world's largest titanium gas atomizer for high-volume production, which added to our existing large-scale production of cobalt, iron, and nickel powders. Our close-coupled atomization technology delivers up to 10x more yield vs. older methods.

Does your supplier have a proven track record in metal powder manufacturing safety? Like most manufacturing, AM metal powder production can be dangerous if not done correctly. We regularly consult with customers to help them improve and refine their safety procedures, building from best practices we've developed over decades of metal powder manufacturing. 

Does your supplier carry the necessary certifications for your end-use? Praxair works with aerospace-grade raw materials which undergo thorough testing in our onsite lab. We carry AS 9100, ISO 9001, and Nadcap certifications.

Does your supplier implement formal process improvement methodologies? We employ Six Sigma, Lean Manufacturing, 5S, and other continuous improvement methodologies to keep our processes up-to-speed with the metal AM industry and devise process improvement products specific to metal AM.

Is your supplier committed to keeping pace with metal AM growth? We have been an industry leader and innovator since 1946. Our parent company, Linde plc serves more than a million customers worldwide and has annual sales of $28 billion. With this backing, Praxair Surface Technologies has made substantial, ongoing investments in metal AM.

metal powders for additive manufacturing

Vacuum induction melt argon gas metal powders

manufacturing process for additive powders

Vacuum induction melting and inert gas atomization is one of the most common processing methods for high performance metal powders such as iron, high alloy steels, precious metals, nickel-based alloys, cobalt, chromium and other special alloy powders. During this process, metals are melted using electromagnetic induction until the desired chemical composition has been achieved. The material is then poured into a tundish which flows into the atomization nozzle system, which is subject to high pressure, inert-gas jet and then atomized. The molten metal and gas jet form a fine spray of mirco-droplets that solidifies in the atomization tower, forming a fine powder. 

Praxair Surface Technologies has been producing atomized powders for more than 50 years. We pour more than 4 million pounds of powder each year in batches ranging from 100 to 5,000 pounds.

Processing Steps for metal powders

The process steps involved in the production of TruForm metal powders are 1) batching raw materials (such as iron, cobalt, nickel, titanium), 2) vacuum melting, 3) pouring the molten metal, 4) converting the molten metal into droplets via atomization, 5) collecting the solidified particles, 6) size classification of powder, 7) blending to ensure lot homogeneity, 8) thorough quality inspection, and 9) packaging. 

Sizing Process

Through our screening and air classification processes, Praxair is able to produce large capacity custom powder sizing. We've optimized our powder production by utilizing automation and industry-standard operating methodologies such as Six Sigma and Lean. Our metal powders are appropriate for use in powder bed and powder fed technologies. 

Blending Process

Our robust blending procedures ensure uniform composition and properties, which assure consistency and eliminate segregation. At Praxair, we produce lots in excess of 5,000 lbs. that are subjected to our stringent quality control procedures for each lot. 

metal powders for additive manufacturing

Tru2Spec Precision Powder Formulation

Precision AM metal powders
designed for your innovative applications

Tru2Spec™ precision powder formulation, only from Praxair, enables you to create a custom AM metal powder that meets the exact specifications of your most demanding applications. No more guessing if an off-the shelf powder will hit the spec and meet your requirements. 

TruForm Metal Powders - Tru2Spec Brochure 

How Tru2Spec™ works

1. Evaluate your custom powder before it's ever produced 

  • Collect application specifications such as operating environment, desired powder characteristics, and part production method
  • Develop powder formulations

  • Create detailed powder profile and analysis such as chemistry profile, flowability measures and certifications specific to your requirement

2. Test powder performance in trial-sized batches

  • Produce small lots for customer testing, verification and potential printing
  • Refine powder formulations based on trial tests and conduct quality assessments to create larger project

3. Produce approved powder for commercial use

  • Produce custom powder in lot sizes from 5 kg to 2,500 kg in a few weeks

Contact Praxair for more information on how we can provide the best products for your metal powder needs.


Cobalt Metal Powders




TruForm™ 188 



TruForm™ 509 (Co-222)


CO-222 (138KB)

TruForm™ CoCr (Co-538)


CO-538 (138KB)

Iron Metal Powders




TruForm™ 15-5 (Fe-347)


FE-347 (132KB)

TruForm™ 17-4 (Fe-276)


FE-276 (132KB)

TruForm™ 316 (Fe-271)


FE-271 (132KB)

TruForm™ MS (Fe-339)


FE-339 (132KB)

Nickel Metal Powders




TruForm™ 142 (Ni-365)


NI-365 (132KB)

TruForm™ 230 (Ni-1287) 


NI-1287 (132KB)

TruForm™ 247 (Ni-335)


NI-335 (132KB)

TruForm™ 617 (Ni-1066)


NI-1066 (132KB)

TruForm™ 625 (Ni-328)


NI-328 (132KB)

TruForm™ 718 (Ni-202)


NI-202 (144KB) 

TruForm™ 738 (Ni-284)


NI-284 (132KB)

TruForm™ 914 (Ni-914)

Ni 99.00 min

NI-914 (113KB)

TruForm™ 939 (Ni-238) 


NI-238 (132KB)

TruForm™ HX (Ni-111)


NI-111 (132 KB)

*Made under license for Haynes International 

Hastelloy and Haynes are registered trademarks of Haynes International; Inconel is a registered trademark of Special Metals Corporation; MAR-M is a registered trademark of Martin Marietta; Rene is a trademark of GE Corporation

Titanium Metal Powders

 TruForm™ 64-5 (Ti-105) Ti-6Al-4V (Grade 5)   TI-105 (155KB)
 TruForm™ 64-23 (Ti-123) Ti-6Al-4V (Grade 23) TI-123 (155KB) 
 TruForm™ 4822 (Ti-4822)  Ti-48Al-2Nb-2Cr Tl-4822 (136KB) 
 TruForm™ 6242 (Ti-301) Ti-6Al-2Sn-4Zr-2Mo  N/A