Maraging Steel Bar and Rod

Starc Metals is your go-to manufacturer and supplier of Maraging Steel Bars and Rods right here in Canberra, Australia. We specialize in high-strength, nickel-based alloy steels that are crafted for outstanding toughness, hardness, and dimensional stability. Our maraging steel products are designed to meet the demands of applications that require impressive strength-to-weight ratios and excellent resistance to crack propagation. At Starc Metals, we pride ourselves on precision engineering, top-notch surface finishes, and consistent metallurgical quality, making our materials perfect for aerospace, tooling, defense, and high-performance industrial uses where strength and durability are non-negotiable.

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What is Maraging Steel Bar and Rod?

When it comes to the composition of our Maraging Steel Bars and Rods, they typically feature iron as the base, with 18–25% nickel, plus cobalt, molybdenum, titanium, and trace amounts of aluminum. This special blend allows the alloy to be hardened through age precipitation instead of carbon, achieving ultra-high tensile strengths of up to 2000 MPa after heat treatment. Maraging steel also boasts excellent ductility, fracture toughness, and dimensional stability during heat processing. Plus, it offers remarkable resistance to stress corrosion and deformation, making it ideal for high-precision applications.

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Maraging Steel Bar and Rod Specification

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)

Chemical Compositions of Maraging Steel Bar

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

Maraging Steel Bar Mechanical Properties

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

Maraging Steel Bar Equivalent Grades

STANDARD	UNS	Material No	AMS	ASTM	Mil-S	BS	DTD	MSRR
Maraging Steel	K92890, K93120, S35000	–	6512	A538	46850D	S162	5212	6551

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Maraging Steel Bar and Rod Types

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Frequently Asked Questions (FAQ)

What sizes are available for Maraging Steel Rod?

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).

Can Maraging Steel Bar Be Welded?

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.

What Sizes and Finishes Are Available for Maraging SteelRod?

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 Bar and Rod Uses

You’ll find Maraging Steel Bars and Rods in a variety of applications, from aerospace components and missile casings to aircraft landing gear and high-performance shafts, all thanks to their superior strength and fatigue resistance. They’re also a popular choice in tooling applications like die-casting molds, extrusion dies, and high-strength fasteners. The alloy’s ability to maintain mechanical integrity under high stress and temperature conditions makes it a top pick for critical engineering structures. With exceptional reliability and performance, Maraging Steel Bars and Rods from Starc Metals provide the precision, strength, and durability needed for advanced industrial and aerospace applications.

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