20 Years Experience | 1000+ Brand Partners | Full Customization
We have 20 years of industry experience, have partnered with over 1,000 brands, and support any customization needs.
Technical Specifications
Product Overview
Metallurgical Characteristics
Maraging 300 exhibits a unique martensitic microstructure strengthened by intermetallic precipitates. The low-carbon martensitic matrix provides excellent toughness while Ni3Mo, Ni3Ti, and Fe2Mo precipitates formed during aging contribute to exceptional strength. This combination delivers superior structural performance with minimal distortion during heat treatment.
Heat Treatment Process
MetalZenith employs solution annealing at 820°C followed by air cooling to achieve a soft martensitic structure. Subsequent aging at 480°C for 3 hours promotes optimal precipitation hardening while maintaining dimensional stability. Our controlled atmosphere processing prevents surface oxidation and ensures consistent properties.
Manufacturing Process
Our production utilizes vacuum induction melting followed by vacuum arc remelting to achieve exceptional cleanliness and homogeneity. Controlled forging and rolling operations optimize grain structure, while precision heat treatment ensures uniform precipitation distribution throughout the cross-section.
Structural Quality Testing
Comprehensive testing includes welding performance evaluation using standard structural joint configurations, forming behavior assessment under high-stress conditions, fatigue testing to 10^7 cycles for structural applications, and atmospheric corrosion resistance testing per ASTM standards to ensure long-term structural integrity.
Application Engineering Considerations
For building structures, Maraging 300 provides exceptional strength-to-weight ratios enabling lighter designs. In bridge engineering, its fatigue resistance ensures long service life under cyclic loading. Machinery applications benefit from dimensional stability and machinability, while vehicle manufacturing utilizes its crash energy absorption capabilities. General engineering applications leverage its weldability and consistent properties for critical structural components.
🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 17.0 - 19.0 |
| Cobalt (Co) | 8.5 - 9.5 |
| Molybdenum (Mo) | 4.6 - 5.2 |
| Titanium (Ti) | 0.6 - 0.8 |
| Aluminum (Al) | 0.05 - 0.15 |
| Carbon (C) | ≤ 0.03 |
| Silicon (Si) | ≤ 0.10 |
| Iron (Fe) | Balance |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength (MPa) | ≥ 2750 |
| Tensile Strength (MPa) | 2900 - 3100 |
| Elongation (%) | ≥ 8 |
| Impact Energy at RT (J) | ≥ 20 |
| Hardness (HRC) | 50 - 55 |
| Fatigue Strength (MPa) | ≥ 1200 |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density (g/cm3) | 8.10 |
| Melting Point (°C) | 1413 - 1440 |
| Thermal Conductivity (W/m·K) | 17.4 |
| Thermal Expansion (×10??/K) | 10.1 |
| Elastic Modulus (GPa) | 186 |
| Poisson's Ratio | 0.31 |
📏 Product Specifications
| Specification | Details |
|---|---|
| Available Forms | Plates, Bars, Forgings, Billets, Custom Shapes |
| Thickness Range | 3 - 200mm |
| Width Range | 100 - 2000mm |
| Length Range | 500 - 6000mm |
| Standards Compliance | ASTM A538, AMS 6514, DIN 1.2709 |
| Heat Treatment Condition | Solution Annealed + Aged |
| Surface Finish | Hot Rolled, Cold Finished, Machined |
Let Us Create Success for Your Project
Professional Team, Premium Products, Complete Service - Your Project Success is Our Mission
Our Advantages in Processing Maraging 300 Steel
Precision Vacuum Melting & Aging Process
MetalZenith utilizes advanced vacuum induction melting followed by controlled aging at 480°C to achieve optimal precipitation hardening. Our precise temperature control and atmosphere management ensure consistent ultra-high strength properties and exceptional dimensional stability throughout the material.
Comprehensive Structural Performance Testing
Our quality assurance includes specialized testing for structural applications: advanced welding performance evaluation, forming behavior analysis under high stress, fatigue strength testing up to 10^7 cycles, and accelerated atmospheric corrosion resistance testing to ensure long-term structural integrity.
Custom Structural Solutions & Engineering Support
MetalZenith provides tailored processing solutions including custom heat treatment cycles, precision machining to tight tolerances, and comprehensive technical support for structural design optimization. Our engineering team assists with material selection and application-specific property enhancement.
YOUR TRUSTED STEEL
MANUFACTURING PARTNER
Quick Inquiry
Industries We Serve
Professional steel solutions across major industries
Qualifications & Certifications
