Maraging Steel Grades C250 C300 C350
Maraging Steel Grades C250, C300, C350 (Available in Bar, Plate, and Forged Forms)
Material Composition
Maraging steel is a family of low-carbon, high-nickel alloys strengthened through a unique age-hardening process. Key elements include:
Nickel (18-25%): Provides exceptional toughness and ductility.
Cobalt, Molybdenum, Titanium: Enhance strength and hardness during aging.
Carbon (<0.03%): Minimizes carbide formation for superior dimensional stability.
International Standards
Compliant with:
ASTM A564 (Standard Specification for Maraging Steels)
AMS 6504 (C250), AMS 6505 (C300), AMS 6506 (C350)
Custom certifications (ISO, EN, JIS) available upon request.
After quenching and tempering mechanical property:
|
σb MPa |
|
δ5 % |
Ψ % |
AKv J |
KIC |
HRC |
|
|
≥2255 |
≥2155 |
≥7 |
≥38 |
≥7 |
Actual test |
≥50 |
We also can produce Maraging c300=ams 6514 steel and maraging c250 steel=asm 6512.Please find chemical analyse difference below
| Element | Grade 200 | Grade 250 | Grade 300 | Grade 350 |
|---|---|---|---|---|
| Iron | balance | balance | balance | balance |
| Nickel | 17.0–19.0 | 17.0–19.0 | 18.0–19.0 | 18.0–19.0 |
| Cobalt | 8.0–9.0 | 7.0–8.5 | 8.5–9.5 | 11.5–12.5 |
| Molybdenum | 3.0–3.5 | 4.6–5.2 | 4.6–5.2 | 4.6–5.2 |
| Titanium | 0.15–0.25 | 0.3–0.5 | 0.5–0.8 | 1.3–1.6 |
| Aluminium | 0.05–0.15 | 0.05–0.15 | 0.05–0.15 | 0.05–0.15 |
| Tensile strength, MPa (ksi) | 1,379 (200) | 1,724 (250) | 2,068 (300) | 2,413 (350) |
Maraging steel chemical composition:
|
Grade |
Tensile Strength (ksi) |
Yield Strength (ksi) |
Elongation (%) |
Hardness (HRC) |
Primary Applications |
|
C250 |
250+ |
240+ |
10-12 |
45-47 |
Aerospace components, precision tools |
|
C300 |
300+ |
285+ |
8-10 |
48-50 |
Defense structures, die-casting molds |
|
C350 |
350+ |
330+ |
6-8 |
50-52 |
High-stress fasteners, rocket components |
Manufacturing Excellence
1. Premium Production Process •Vacuum Induction Melting (VIM): Ensures ultra-clean steel with minimal impurities (sulfur <0.001%, phosphorus <0.002%). •Age-Hardening Expertise: Controlled heat treatment in our ISO 9001-certified furnaces to achieve uniform mechanical properties throughout the material.
2. Customization Options •Form & Size: Bars (diameter 10mm-300mm), plates (thickness 5mm-150mm), and forgings (custom shapes). •Heat Treatment States: As-melted, pre-aged, or fully heat-treated to your specifications. •Testing & Certification: Comprehensive reports including mechanical properties, ultrasonic testing (UT), and chemical analysis.
Application
Aerospace & Defense
Aircraft Components: Landing gear, wing fittings, missile casings (C300/C350 for critical load-bearing parts).
Military Equipment: Armor plating, precision-guided weapon systems, and high-pressure hydraulic components.
Industrial Manufacturing
Mold & Die Making: C250/C300 for injection molds, extrusion dies, and stamping tools requiring high wear resistance and dimensional accuracy.
Heavy Machinery: High-stress gears, shafts, and fasteners in mining, oil & gas, and construction equipment.
Advanced Technology
Robotics & Automation: Lightweight robotic arms and precision bearings for high-speed, high-load applications.
Energy Sector: Turbine components, subsea connectors, and hydrogen storage system parts (resistant to hydrogen embrittlement).
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