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Maraging 350（18Ni-350）
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Maraging 350（18Ni-350）
PRODUCT DETAILS
✅I. Chemical composition (wt%)
| Ni（镍） | 17.0–19.0% |
| Co(钴） | 11.0–13% |
| Mo (钼） | 4.5–5.2% |
| Ti(钛） | 1.2–1.6% |
| Al(铝） | ≤ 0.10% |
| C (碳） | ≤ 0.03% |
| Fe (铁） | BAL |
✅II. Mechanical properties (after heat treatment)
Ultrasonic Tensile Strength (UTS) ≥ 2410 MPa（350 ksi）
Yield Strength (0.2%) ≥ 2280 MPa
Elongation 5–7%
Impact Toughness (Charpy V-notch)20–40 J (Room Temperature)
Hardness (HRC) 54–56 HRC
Density 8.0 g/cm³
✅III. Heat Treatment System
Solution treatment: 820–850°C for 1 hour, air cool.
Aging treatment: 480–500°C for 3–6 hours, air cool.
Maraging steel does not require quenching and is strengthened by the precipitation of intermetallic compounds (e.g., Ni₃Ti).
Ⅳ. Advantages and Characteristics
✅ Ultra-high strength (UTS > 2400 MPa)
✅ Minimal deformation during heat treatment, suitable for precision molds
✅ Weldable, with post-weld heat treatment to restore performance
✅ Excellent workability in the solution state, with extremely high strength after aging
Industry Application Examples
Aerospace: Rocket structures, missile casings, and aircraft load-bearing components
Military: High-pressure casings, tank turrets, and high-strength fasteners
Molds: High-life injection molds, die-casting molds, and stamping molds
3D Printing: SLM powder materials (compliant with DIN 1.2709)
Racing: High-strength drive shafts and racing connectors
✅Ⅴ. Common Supply Conditions
Solution Condition (Easy to Machining)
Aging Condition (Final Heat Treatment)
Supply Forms: Forgings, Round Bars, Plates, Die Blocks, Wire, etc.
Availability: Ultrasonic Testing, Mechanical Property Reports, Dimensional Certificates, etc.
FACTORY APPEARANCE
Our extensive product portfolio is designed to meet diverse industrial needs, including: hot rolled steel plates, cold rolled steel plates, seamless and welded steel pipes, galvanized steel and colour coated products, stainless steel sheets and coils, aluminium and nickel products.
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APPLICATION AREAS
Large venues
Mechanical processing
Steel smelting
Tall Buildings
Gear machining
Automobile manufacturing
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This batch of steel exported to Europe was highly praised by the customer during the factory inspection. He said that the material is uniform and the processing performance is good. He has listed us as a preferred supplier. Thank you!
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The customer service is very professional and familiar with the foreign trade process. They assist throughout the process from quotation to document preparation. Communication is very worry-free. The steel itself is also excellent and very cost-effective!
WHY CHOOSE US
RELIABLE QUALITY
In accordance with international standards, it has strict control and stable performance, and can meet the high requirements of multiple scenarios.
COMPLETE SPECIFICATIONS
A variety of materials and models are available to suit multiple industries, reducing purchases from multiple parties.
PRICE COMPETITIVENESS
With the advantages of scale and supply chain, it has high cost performance and reduces procurement costs.
STABLE SUPPLY
Mature production logistics ensure long-term supply and on-time delivery.
RELATED PRODUCTS
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