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Smith Fittings is a reputable manufacturer and supplier located in Canberra, Australia, focusing on top-notch **Maraging Steel 250/300/350 Sheets and Plates**. These ultra-high-strength steels are designed for remarkable toughness, hardness, and dimensional stability. At Smith Fittings, precision manufacturing and rigorous quality control are paramount, ensuring that their products meet international standards for aerospace, defense, and industrial uses. Renowned for their exceptional mechanical properties and performance in extreme conditions, Maraging Steel 250/300/350 plates from Smith Fittings offer unparalleled reliability, machinability, and fatigue resistance, making them perfect for demanding structural and tooling applications.
**Maraging Steel 250/300/350 Sheets and Plates** are primarily made up of nickel, cobalt, molybdenum, titanium, and trace amounts of aluminum. What sets these steels apart is their low carbon content and the precipitation-hardening characteristics they gain through aging treatment. They boast **ultimate tensile strengths ranging from 1725 MPa to 2410 MPa**, along with impressive ductility and impact resistance. Maraging 250 strikes a balance between strength and toughness, Maraging 300 provides increased hardness, and Maraging 350 achieves maximum tensile strength. Their fine-grained martensitic structure guarantees excellent weldability and dimensional stability post-heat treatment.
| Specification : | ASTM A538, AMS 6512, Mil-S-46850D, BS S162, DTD 5212, MSRR 6551, MAT 102, MIA 101 |
| Standard : | AMS, AMS, API |
| Size : | 20mm x 1200 x 500 |
| Specialize sheets : | Shim, Perforated Sheet, B. Q. Profile. |
| Finish : | Cold rolled sheet (CR), 2D, Hot rolled plate (HR), 2B, BA NO(8), SATIN (Met with Plastic Coated) |
| Hardness : | Quarter Hard, Soft, Hard, Half Hard, Spring Hard etc. |
| Grade : | Maraging Steel 250/ 300 / 350 (UNS-K92890, K93120, S35000) |
| Weight% | C | Si | Mn | S | P | Co | Ni | Mo | Ti | Al | Fe |
| Maraging 300 | 0.03 max | 0.10 max | 0.10 max | 0.010 max | 0.010 max | 8.0-9.5 | 18.0-19.0 | 4.6-5.2 | 0.55-0.80 | 0.05-0.15 | Bal |
| Material | 0.2 % Yield Strength ksi | Ultimate Tensile Strength ksi | Elongation in 4D(%) | Reduction of Area % | Hardness Rc |
| Maraging 300, Solution Annealed 1500° F (816°C), 1hr, AC | 120 | 150 | 16 | 70 | 30 |
| Solution Annealed Plus Aged 900 ° F (482°C), 3 hrs AC | 280 | 290 | 8 | 40 | 52 |
| STANDARD | UNS | Material No | AMS | ASTM | Mil-S | BS | DTD | MSRR |
| Maraging Steel | K92890, K93120, S35000 | – | 6512 | A538 | 46850D | S162 | 5212 | 6551 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Marraging steel 250/300/350 sheets and plates provide exceptional strength and toughness, making them ideal for aerospace, equipment, and defense applications They provide excellent machinability in the annealed state and exhibit excellent resistance to cracking and fatigue. Their low-carbon design ensures maximum distortion when heat treated, while the high nickel content increases corrosion resistance. Steel inserts are easily welded together, offering versatility in construction. These materials retain their mechanical properties even at elevated temperatures, providing reliability in harsh environments. Its durability and longevity make it cost-effective for critical applications..
**Maraging Steel 250/300/350 Sheets and Plates** find extensive applications in **aerospace components, defense equipment, tooling, nuclear applications, missile casings, and high-performance shafts**. Their outstanding strength-to-weight ratio, fatigue resistance, and dimensional stability make them ideal for critical applications that endure extreme pressure and temperature. These steels are also utilized in **molds, dies, and industrial machinery** where precision and reliability are essential. The combination of remarkable mechanical strength, weldability, and machinability ensures a long service life and high performance across advanced engineering and high-stress environments.
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