Luois Metals stands out as a reliable manufacturer and supplier of top-notch Maraging Steel Bars and Rods, catering to clients from Houston, USA, all the way to international markets. We take pride in providing advanced steel alloys that are designed for exceptional strength, toughness, and dimensional stability. Maraging steel, a low-carbon, high-nickel alloy, is celebrated for its remarkable mechanical properties and ease of workability. Our bars and rods come in various grades, including 18Ni (250, 300, 350), and are crafted under rigorous quality control standards. Luois Metals is dedicated to supporting vital industries such as aerospace, tooling, automotive, and defense with our reliable and precisely engineered maraging steel products.
The composition of Maraging Steel Bars and Rods primarily includes nickel (17–19%), along with cobalt, molybdenum, titanium, and a very low carbon content. These alloys achieve impressive tensile strength (up to 2,400 MPa) through aging heat treatment instead of carbon hardening, which results in outstanding toughness and minimal distortion during processing. They are highly resistant to stress-corrosion cracking and maintain their strength throughout an extended service life. Maraging steels are magnetic, easily machinable in their annealed state, and provide exceptional dimensional stability. These characteristics make them perfect for applications that demand high strength, durability, and precision under intense stress.
| Standard : | AMS, AMS, API |
| Specification : | ASTM A538, AMS 6512, Mil-S-46850D, BS S162, DTD 5212, MSRR 6551, MAT 102, MIA 101 |
| 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) |
| Grade | C | Mn | Si | Co | Fe | Ni | Mo | Ti | Al |
| Maraging C250 | .03max max | .10max max | .10max max | 7.50 max | Bal | 18.50 min | 4.80 max | .40 max | .10 max |
| Maraging C300 | .03max max | .10max max | .10max max | 9.0 max | Bal | 18.50 min | 4.80 max | .60 max | .10 max |
| Maraging C350 | .03max max | .10max max | .10max max | 12.0 max | Bal | 18.50 min | 4.80 max | 1.40 max | .10 max |
| Grade | Density | Average Coefficient of Thermal Expansion | Modulus of Elasticity |
| Maraging 250 | .289 lbs./cu.in | 5.6 x 10-6 in./ in./ ºF | 5.6 x 10-6 in./ in./ ºF |
| Maraging 300 | .289 lbs./cu.in | .289 lbs./cu.in | 292 lbs./cu.in |
| Maraging 350 | .289 lbs./cu.in | 6.3 x 10-6 in./ in./ ºF | 29.0x 10-6 psi |
| STANDARD | UNS | Material No | AMS | ASTM | Mil-S | BS | DTD | MSRR |
| Maraging Steel | K92890, K93120, S35000 | – | 6512 | A538 | 46850D | S162 | 5212 | 6551 |
Maraging Steel Rods are typically available in sizes ranging from 0.125 inches (3.175 mm) to 12 inches (305 mm) in diameter, with lengths varying from 12 inches (300 mm) to 20 feet (6 meters).
Yes, Maraging steel bars can be welded, but they require careful control of heat input and pre/post-weld heat treatment to avoid compromising the material’s strength and toughness.
Maraging steel rods are typically available in diameters ranging from 0.25 inches to 8 inches. Common finishes include cold drawn, polished, or ground, with standard lengths between 12 and 24 feet.
Maraging Steel Bars and Rods find their place in a diverse range of critical and high-performance applications. In the aerospace sector, they are utilized for landing gear, rocket motor cases, and structural components. The tooling industry depends on maraging steel for die-casting tools, extrusion dies, and injection molds, thanks to its superior wear resistance and machinability. In defense, it plays a crucial role in missile and aircraft components where strength and toughness are paramount. Maraging steel is also employed in various other high-stress applications, showcasing its versatility and reliability.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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