Maraging 350 Steel Round Bars
Maraging 350 Steel Round Bars
Maraging 350 Steel Round Bars
Maraging 350 Steel Round Bars

Maraging 350

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Product Introduction

Products Description

Maraging 350 Steel Round Bars have high strength and hardness (tensile strength 2500Mpa, surface hardness 50-54HRC), as well as good toughness and plasticity, making it a key material for manufacturing aerospace equipment. Maraging 350 Steel has been widely used in industries such as aviation, aerospace, and precision molds. Currently, it is used as a material for manufacturing high-precision load-bearing parts such as rocket engine shells, missile shells, and high-speed rotors for uranium isotope centrifuges.

C350 Maraging Steel Composition

Ni	Co	Mo	Ti	Si	Mn	C	S	P	Al	Fe
17.5~18.5	11.5~12.5	4.0~5.0	1.25~1.45	≤ 0.10	≤ 0.10	≤ 0.008	≤ 0.005	≤ 0.005	0.05~0.15	Bal

Physical Properties

Physical Properties	Metric	English
Maraging 350 Steel Density	8.08 g/cc	0.292 lb/in³

After solid solution, low-carbon martensite is formed in Maraging 350 Steel Round Bars, with a hardness of 28~30HRC. After aging treatment, due to the absence of various types of intermetallic precipitation, the hardness can increase to 53HRC. Maraging 350 Steel still has good toughness, toughness, and high fracture toughness under high strength and toughness conditions. At the same time, this type of steel has no cold work hardening, small deformation during aging heat treatment, good welding performance, and can also be nitrided on the surface.

The strength and hardness of Maraging steel C250/C300/C350 steel bars after solid solution and aging heat treatment :

Grade	Solid Solution Temperature/℃	Aging Temperature/℃	HardnessHRC	Tensile Strength/MPa
18Ni(250)	815	482	50~52	1850
18Ni(300)	816	482	53	2060
18Ni(350)	816	510	57~60	2490