Cr17Ni5Cu4Nb Stainless Steel Powder: High-Performance Precipitation-Hardening Alloy
Overview:
Cr17Ni5Cu4Nb stainless steel powder is a precipitation-hardening alloy known for its exceptional strength, toughness, and corrosion resistance. Its unique composition, which includes copper and niobium, ensures excellent mechanical properties and durability in harsh environments. The spherical powder form is ideal for advanced manufacturing processes such as additive manufacturing and powder metallurgy.
What is Cr17Ni5Cu4Nb Stainless Steel Powder?
Cr17Ni5Cu4Nb is a martensitic stainless steel alloy with chromium, nickel, copper, and niobium. These elements combine to provide high strength, excellent corrosion resistance, and good weldability. Its ability to undergo precipitation-hardening heat treatments makes it versatile for applications requiring durability and precision.
Composition:
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 15.0-17.5 |
| Nickel (Ni) | 3.0-5.0 |
| Copper (Cu) | 3.0-5.0 |
| Niobium (Nb) | 0.15-0.45 |
| Manganese (Mn) | ≤1.00 |
| Silicon (Si) | ≤1.00 |
| Carbon (C) | ≤0.07 |
| Phosphorus (P) | ≤0.04 |
| Sulfur (S) | ≤0.03 |
| Iron (Fe) | Balance |
Features:
High Strength: Exceptional mechanical properties after precipitation-hardening treatments.
Corrosion Resistance: Performs well in marine and chemical environments.
Spherical Powder Form: Ensures superior flowability and consistency for manufacturing.
Applications:
| Industry | Application |
|---|---|
| Aerospace | Structural components and fasteners |
| Medical | Surgical instruments and orthopedic devices |
| Marine | Propellers and corrosion-resistant components |
Specifications:
| Property | Value |
|---|---|
| Particle Size | Customizable for specific applications |
| Density | ~7.75 g/cm³ |
| Tensile Strength | ~1310 MPa (after heat treatment) |
| Yield Strength | ~1170 MPa (after heat treatment) |
| Hardness | ~38-45 HRC (depending on treatment) |
Advantages:
Versatility: Suitable for a wide range of industrial applications.
Durability: High resistance to corrosion, wear, and mechanical stress.
Processing Efficiency: Spherical powder ensures minimal waste and high precision.
Limitations:
Cost: Higher material cost due to alloying elements.
Heat Treatment Sensitivity: Requires precise control for optimal properties.
FAQs:
| Question | Answer |
|---|---|
| What industries use Cr17Ni5Cu4Nb stainless steel powder? | Aerospace, medical, and marine industries. |
| How does niobium improve this alloy? | Niobium enhances strength and corrosion resistance through precipitation hardening. |
| Why is the spherical powder form advantageous? | It ensures better flowability, precision, and reduced waste in manufacturing. |