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Product Introduction
Product Introduction
321 spherical stainless steel alloy powder is an austenitic stainless steel specifically engineered for advanced manufacturing technologies such as 3D printing and laser sintering, as well as for coating and powder metallurgy applications. Its spherical morphology, achieved through state-of-the-art atomization techniques, ensures excellent flowability, uniform particle distribution, and outstanding bulk density. Yet 321 is more than just its shape—it also boasts exceptional oxidation resistance and corrosion resistance, even under high-temperature conditions, making it ideally suited for demanding and harsh environments.
| Chemical composition |
Fe |
Cr |
Ni |
Ti |
C |
Yes |
Mn |
P |
S |
| Bal. |
17.0-19.0 |
9.0-12.0 |
0.30-0.80 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.030 |
| Physical properties |
D10(μm) |
D50(μm) |
D90(μm) |
Loose packing density (g/cm³) |
Tap density (g/cm³) |
Flowability (s/50g) |
| 10-20 |
25-35 |
≤60 |
≥4.3 |
≥5.1 |
≤25 |
Application areas
Aerospace: In the aerospace industry, 321 stainless steel powder is used to manufacture engine components, fasteners, heat exchangers, and high‑temperature, high‑pressure piping, owing to its ability to maintain excellent mechanical properties and corrosion resistance at elevated temperatures.
Petrochemicals: In the petroleum and chemical industries, 321 stainless steel is used to fabricate equipment such as high-temperature‑ and corrosion‑resistant pipelines, valves, reactors, and heat exchangers, thereby meeting the demands of harsh process conditions.
Automotive Industry: In the automotive industry, 321 stainless steel is used to manufacture components such as exhaust systems and catalytic converters, as it maintains stability at high temperatures and effectively reduces environmental pollution.
Medical devices: Due to its excellent biocompatibility and corrosion resistance, 321 stainless steel is also used in the manufacture of medical devices such as surgical instruments and implants.
321 stainless steel
Category:
Brand: Asia Materials
Category: Special Steel Alloy
Product Name: 321 Stainless Steel
European and American grades: /
Specifications and model numbers: 0–20 μm, 15–45 μm, 15–53 μm, 45–105 μm, 53–150 μm
Reference standard: /
Appearance: Spherical
Oxygen content: ≤500 ppm
For more product details, please contact our product experts. We look forward to your call.
Product Introduction
Product Introduction
321 spherical stainless steel alloy powder is an austenitic stainless steel specifically engineered for advanced manufacturing technologies such as 3D printing and laser sintering, as well as for coating and powder metallurgy applications. Its spherical morphology, achieved through state-of-the-art atomization techniques, ensures excellent flowability, uniform particle distribution, and outstanding bulk density. Yet 321 is more than just its shape—it also boasts exceptional oxidation resistance and corrosion resistance, even under high-temperature conditions, making it ideally suited for demanding and harsh environments.
| Chemical composition |
Fe |
Cr |
Ni |
Ti |
C |
Yes |
Mn |
P |
S |
| Bal. |
17.0-19.0 |
9.0-12.0 |
0.30-0.80 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.030 |
| Physical properties |
D10(μm) |
D50(μm) |
D90(μm) |
Loose packing density (g/cm³) |
Tap density (g/cm³) |
Flowability (s/50g) |
| 10-20 |
25-35 |
≤60 |
≥4.3 |
≥5.1 |
≤25 |
Application areas
Aerospace: In the aerospace industry, 321 stainless steel powder is used to manufacture engine components, fasteners, heat exchangers, and high‑temperature, high‑pressure piping, owing to its ability to maintain excellent mechanical properties and corrosion resistance at elevated temperatures.
Petrochemicals: In the petroleum and chemical industries, 321 stainless steel is used to fabricate equipment such as high-temperature‑ and corrosion‑resistant pipelines, valves, reactors, and heat exchangers, thereby meeting the demands of harsh process conditions.
Automotive Industry: In the automotive industry, 321 stainless steel is used to manufacture components such as exhaust systems and catalytic converters, as it maintains stability at high temperatures and effectively reduces environmental pollution.
Medical devices: Due to its excellent biocompatibility and corrosion resistance, 321 stainless steel is also used in the manufacture of medical devices such as surgical instruments and implants.
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