IN625 Powder: The Ultimate Guide for 2025

Overview

IN625 powder, also known as Inconel 625, is a nickel-based superalloy renowned for its exceptional corrosion resistance, high-temperature strength, and excellent weldability. It is widely used in aerospace, marine, chemical processing, and additive manufacturing (3D printing) for high-performance components that require durability in extreme environments.

In this guide, we’ll explore:

• Best IN625 powder for 3D printing
• How to choose the right IN625 powder
• Top suppliers of IN625 powder
• Properties and industrial applications
• Production methods and cost analysis
• Comparing gas-atomized vs. water-atomized IN625 powder

Best IN625 Powder for 3D Printing in 2025

Why IN625 Powder is Ideal for Additive Manufacturing?

• Outstanding corrosion and oxidation resistance, even at high temperatures
• High tensile strength and toughness, making it suitable for demanding applications
• Excellent weldability, reducing the risk of cracking during printing
• Superior fatigue and creep resistance, ideal for aerospace and marine applications

Key Factors for Selecting IN625 Powder for 3D Printing

• High sphericity for better flowability
• Controlled particle size distribution for consistent layer formation
• Low oxygen & impurity levels to prevent defects
• Superior mechanical properties post-processing

Comparison for Different 3D Printing Technologies

For high-performance industrial applications, Met3DP’s gas-atomized IN625 powder is the preferred choice. Learn more about Met3DP’s high-quality metal powders.

How to Choose the Right IN625 Powder

Selecting the ideal IN625 powder requires considering factors such as particle size distribution, powder morphology, atomization process, and application requirements.

1. Particle Size Distribution (PSD)

• Fine powders (15-45µm) → Best for Laser Powder Bed Fusion (LPBF)
• Medium powders (45-105µm) → Suitable for EBM & Binder Jetting
• Coarse powders (50-150µm) → Used in Direct Energy Deposition (DED)

2. Powder Morphology

• Spherical Powder → Best for 3D printing due to superior flowability
• Irregular Powder → Suitable for Binder Jetting & Sintering

3. Atomization Process

• Gas-Atomized Powder → High purity, excellent flowability, best for 3D printing
• Water-Atomized Powder → More affordable, irregular shape, best for sintering & MIM

Comparison of Different Types

For high-precision 3D printing, Met3DP’s gas-atomized IN625 powder is the best choice. Contact Met3DP for more details.

Top Suppliers in 2025

Several global manufacturers produce high-quality IN625 powder, but not all powders meet the stringent additive manufacturing requirements.

Leading Suppliers and Their Offerings

Among these, Met3DP stands out due to its cutting-edge atomization technology and consistent powder quality. Explore Met3DP’s IN625 product range.

Properties of IN625 Powder

Key Physical and Chemical Properties

These outstanding properties make it the material of choice for high-temperature structural components, aerospace parts, and marine applications.

Production Methods

The production method of it plays a crucial role in determining its particle shape, purity, flowability, and mechanical performance. The right production technique ensures that the powder meets the strict requirements of additive manufacturing (AM), metal injection molding (MIM), and sintering.

Main Production Methods

1. Gas Atomization

How It Works:

• High-pressure inert gas (argon or nitrogen) rapidly cools molten IN625, forming fine spherical particles.

Advantages:
✔ High sphericity, making it ideal for 3D printing
✔ Low oxygen content, reducing oxidation risks
✔ Consistent particle size distribution, improving packing density

Best for: LPBF, DED, and EBM 3D printing

2. Water Atomization

How It Works:

• High-pressure water jets break molten IN625 into fine particles, resulting in irregular-shaped powders.

Advantages:
✔ Lower cost than gas-atomized powders
✔ Higher surface area, making it suitable for sintering and MIM

Disadvantages:
✖ Poor flowability for additive manufacturing
✖ Higher oxygen content, which may require additional processing

Best for: MIM, sintering, and thermal spray coatings

3. Plasma Rotating Electrode Process (PREP)

How It Works:

• A rotating IN625 electrode is melted in a plasma environment, forming highly spherical, ultra-pure powders.

Advantages:
✔ Perfect spherical shape, excellent for high-end AM
✔ Ultra-high purity, suitable for aerospace and medical applications
✔ Superior flowability

Disadvantages:
✖ Expensive
✖ Limited production volume

Best for: Aerospace, industrial gas turbines, and precision engineering

For high-performance 3D printing applications, Met3DP’s gas-atomized IN625 powder is the top choice. Explore Met3DP’s powder production solutions.

Cost Analysis

The cost of IN625 powder is influenced by factors such as production method, particle shape, purity, and market demand.

Factors Affecting Cost

1. Production Method – PREP powders are the most expensive, while water-atomized powders are the most affordable.
2. Particle Shape – Spherical powders (better for AM) are more expensive than irregular powders.
3. Purity Level – Higher purity = Higher cost.
4. Market Demand – Increased demand from aerospace, power plants, and marine industries can impact pricing.

Estimated Price Ranges for Different Types

For cost-effective, high-quality IN625 powder, Met3DP provides optimized solutions tailored to industry needs. Contact Met3DP for pricing and availability.

Gas Atomized vs. Water Atomized vs. PREP: Which is Better?

Choosing it depends on your application requirements.

Comparison of Different Atomization Methods

For additive manufacturing, gas-atomized IN625 powder is the best option, offering high purity, flowability, and printability.

FAQ

Q1: What is the best IN625 powder for 3D printing?

Gas-atomized spherical IN625 powder is best for LPBF, EBM, and DED due to its excellent flowability and low oxygen content.

Q2: How does IN625 perform at high temperatures?

It maintains excellent mechanical strength and oxidation resistance up to 1100°C, making it ideal for jet engines, heat exchangers, and marine components.

Q3: Can IN625 be used for metal injection molding (MIM)?

Yes, water-atomized IN625 powder is commonly used in MIM and sintering.

Q4: Where can I buy high-quality IN625 powder?

Met3DP is a leading supplier of gas-atomized IN625 powder, optimized for 3D printing and high-performance applications. Contact Met3DP today!

Conclusion

It is widely used in high-temperature and corrosion-resistant applications, including aerospace, marine, and chemical processing. Selecting the right powder type, production method, and supplier is essential for ensuring optimal performance and reliability.

Why Choose Met3DP’s IN625 Powder?

✅ Industry-leading gas atomization technology
✅ High-purity spherical powders for additive manufacturing
✅ Reliable supply chain & global distribution

For high-performance IN625 powder, Met3DP provides cutting-edge solutions tailored to demanding applications.

Want to learn more or get a quote? Contact Met3DP today!