17-4PH
Features:
1. Ultra-high strength After aging treatment, tensile strength ≥1310 MPa, hardness HRC ≥40, excellent impact toughness, stable performance at low temperatures down to 300°C, and outstanding fatigue resistance. 2. Corrosion resistance Resistant to atmospheric, seawater, and weak acid corrosion; suitable for chemical and marine environments. Passivation or plating further enhances corrosion resistance. 3. Processing adaptability High sphericity (≥95%), low oxygen content (≤0.1%), excellent fluidity, suitable for 3D printing of complex structures, small heat treatment deformation, and support for precision machining and surface polishing.
Application:
MIM (metal injection molding)
HIP (heat and other static pressure)
PM (powder metallurgy)
Packing:
Precision grinding, intelligent manufacturing technology, integrated solutions
Aluminum foil bag, iron drum, plastic drum, woven bag, pallet, customized packaging
Date of delivery:
Precision grinding, intelligent manufacturing technology, integrated solutions
3-15 days
key word:
Model: 17-4PH
【GradeCode】
- S51740、05Cr17Ni4Cu4Nb、0Cr17Ni4Cu4Nb(GB/T)
-S17400、630(ASTM)
-SUS630(JIS)
-X5CrNiCuNb16-4(ISO)
-X5CrNiCuNb16-4、1.4542(EN)
Chemical composition(wt%)
Plate Number | Chemical Composition (wt%) | |||||||||
Cr | Ni | Cu | Nb | Others≯ | Fe | |||||
C | Si | Mn | P | S | ||||||
17-4PH | 15.0-17.5 | 3.0-5.0 | 3.0-5.0 | 0.15-0.45 | 0.07 | 1.0 | 1.0 | 0.04 | 0.03 | Bal. |
Physical indicators
Powder Specification Particle Size |
Tapping Density (g/cm³) Tapping Density |
HallFlowRate(s/50g) Hall flow rate |
Oxygen Content (ppm) |
Particle Size Distribution (μm) Particle Size Distribution |
||
D10 |
D50 |
D90 |
||||
53-150μm |
4.5-4.8 |
≤25 |
300-500 |
56-66 |
90-102 |
135-155 |
15-45μm |
4.4-4.8 |
≤25 |
300-500 |
16-20 |
27-32 |
47-51 |
15-53μm |
4.4-4.9 |
≤25 |
300-500 |
17-22 |
30-34 |
48-55 |
20-60μm |
4.3-4.9 |
≤25 |
300-500 |
20-25 |
32-37 |
51-61 |
-500mesh |
4.5-4.8 |
/ |
500-1000 |
3.5-4.5 |
11.5-12.5 |
22-26 |
Application areas

Aerospace
High -strength, can endure extreme environments, and also has good corrosion resistance and fatigue life. It is used to manufacture aircraft engine parts, missile components, satellite structures and other parts.

Chemical Processing
It has good corrosion resistance to liquid and gas for chemicals and is used to make equipment such as containers, pipelines, and valves.

Auto Industry
High strength is good for improving the safety and reliability for the car.

Petroleum and Natural Gas Mining
Can endure high pressure, high temperature, and high corrosion environment.

Medical Instruments
Good bio-compatibility, and can resist various forms of corrosion.

Steam Turbine Blades and Axis
Martensite precipitation hardening stainless steel with high yield strength and fatigue strength as well as good corrosion resistance and process performance.
Recommend products
1. Excellent Corrosion Resistance: High molybdenum (Mo) content enhances resistance to pitting and crevice corrosion, suitable for harsh environments such as marine and chemical applications. 2. Biocompatibility: Certified for biocompatibility according to ISO 10993, suitable for manufacturing medical devices and implantable devices. 3. High Purity and Low Impurities: Oxygen content ≤0.1%, carbon content ≤0.03%, reducing printing defects and ensuring the density and strength of finished products. 4. Excellent Processing Performance: High sphericity (≥95%), good fluidity (Hall flow rate ≤25 s/50g), suitable for additive manufacturing processes such as SLM and EBM.
View Details1. Corrosion Resistance: Resistant to weak acids, alkalis, chlorides, and organic media corrosion. Its intergranular corrosion resistance is superior to 304 stainless steel. It exhibits good oxidation resistance and is suitable for humid and high-temperature steam environments. 2. Processing Adaptability: High sphericity (≥95%), low oxygen content (≤0.1%), and excellent fluidity reduce additive manufacturing defects. Excellent weldability, no annealing required after welding, and no tendency for hot cracking. 3. Environmental and Hygiene: Lead-free and cadmium-free, compliant with FDA and RoHS standards, suitable for food contact applications.
View Details1. Ultra-high strength: Tensile strength ≥1900 MPa and hardness ≥50 HRC after aging treatment, suitable for high-load scenarios. 2. Excellent machinability: High sphericity (≥95%), low oxygen content (≤0.1%), suitable for 3D printing and complex structure forming. 3. High-temperature resistance: Good high-temperature stability, suitable for mold hot-working parts and high-temperature environment parts. 4. Heat treatment friendly: Can be rapidly strengthened by aging treatment (480-500℃) to improve mechanical properties.
View Details1. Excellent ductility in the annealed state 2. Excellent weldability 3. High fatigue strength 4. Good corrosion resistance 5. Excellent printability and surface finish 6. Good thermal and electrical conductivity, non-magnetic, low-temperature resistant 7. Non-magnetic
View Details