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Maraging 250（18Ni-250）
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Maraging 250（18Ni-250）
PRODUCT DETAILS
✅I. Overview of Basic Information
Type: Maraging Steel | Description |
| Material Name: | Maraging 250 (18Ni-250) |
| UNS Number: | K92890 |
| Standards: | AMS 6512, ASTM A538, MIL-S-46850 |
| Key Features: | Ultra-high strength + toughness + weldability + minimal deformation after heat treatment |
✅II. Chemical composition (wt%)
| Ni（镍） | 17.0–19.0% |
| Co(钴） | 7.0–8.5% |
| Mo (钼） | 4.6–5.2% |
| Ti(钛） | 0.3–0.6% |
| Al(铝） | ≤ 0.10% |
| C (碳） | ≤ 0.03% |
| Fe (铁） | BAL |
✅III. Mechanical properties (after heat treatment)
Ultrasonic Tensile Strength (UTS) ≥ 1725 MPa (250 ksi)
Yield Strength (0.2%) ≥ 1650 MPa
Elongation ≥ 8%
Impact Toughness (Charpy V-notch) ≥ 50 J (Room Temperature)
Hardness (HRC) 50–54
Modulus of Elasticity ~200 GPa
Density 8.0 g/cm³
✅IV. Heat Treatment System
Process Parameters
Solution Annealing: 820–850°C, hold for 1 hour, air cool
Aging: 480–500°C, 3–6 hours, air cool
Features: No quenching required, aging hardening, minimal heat treatment deformation, suitable for precision molds and structural parts
V. Advantages and Characteristics
✅ Extremely high strength (tensile strength > 1700 MPa)
✅ Minimal deformation during heat treatment, suitable for precision machining
✅ Excellent weldability, with post-treatment recovery capabilities
✅ Excellent magnetic properties (low or adjustable)
✅ No need for carbide strengthening, excellent embrittlement resistance
✅ Can still be machined in the aged state
VI. 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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After comparing several companies, I finally chose this one, and I was not disappointed! The steel surface is smooth and flawless, the weight is sufficient, the customs declaration information is clear and standardized, and the cooperation experience is perfect!
Customer Reviews
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!
Customer Reviews
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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