Fcd400 Cast

Updated October 6, 2026

Overview

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The term 'FCD400 cast' refers to a high-ductility spheroidal graphite (ductile) iron grade standardized under JIS G5502. It is recognized for its excellent impact resistance and ferritic matrix, making it a staple in the automotive, construction, and water infrastructure industries.

Material & Product Insights

FCD400 is defined by a minimum tensile strength of 400 MPa and a high elongation of 15–18%, providing the "ductility" that prevents brittle failure under stress.

Equivalent Standards: Common global equivalents include QT400-18 (China), GGG40 (Germany/EN), and ASTM 60-40-18 (USA).
Key Applications: Primarily used for components requiring high toughness, such as exhaust manifolds, brackets, manhole covers, and hydraulic cylinder components.

Market Trends & Industry Outlook

The ductile iron market is experiencing steady growth, with a projected CAGR of 5.0% to 8.2% through 2030–2035.

Infrastructure Boom: Increasing global investments in water handling and urbanization are driving massive demand for ductile iron pipes and valves, a market set to double by 2035.
Automotive Lightweighting: FCD400 is trending as a cost-effective alternative to steel in automotive brackets and engine parts due to its superior machinability and vibration damping.
Supply Chain: Manufacturing is concentrated in East Asian clusters, specifically in Qingdao (China) and Taiwan, with typical bulk pricing for raw castings ranging from $1.25 to $3.50 per kg.

Detailed technical specifications, equivalent grade tables, and current B2B pricing benchmarks are consolidated in the research findings file below.

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Sources & References

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