Ductile Iron Casting Services

Custom Ductile Iron Castings

At LANGHE, we specialize in producing high-quality custom ductile iron castings tailored to your exact specifications.
We support a wide range of industries—including automotive, agricultural, construction, and industrial machinery—offering flexible production volumes from prototypes to large-scale runs.

Ductile Iron Machining Services

Ductile iron is a tough, wear-resistant metal known for its excellent strength, impact resistance, and machinability. At LangHe, we provide high-performance ductile cast iron casting services tailored to meet the needs of industries such as automotive, agriculture, heavy equipment, and industrial machinery.

Our capabilities include custom ductile iron casting, precision mold design, CNC machining, heat treatment, surface finishing, and quality inspection to ensure reliable, long-lasting components.

With extensive foundry experience and strict quality control, LangHe delivers ductile iron castings that meet demanding mechanical and dimensional requirements—offering both performance and cost efficiency.

LangHe offers high-quality ductile iron casting services using multiple advanced casting methods—including sand casting, shell mold casting, and lost foam casting—to produce custom components with exceptional strength, durability, and dimensional accuracy. Our flexible processes are designed to meet complex design requirements while maintaining consistent quality across small to large production runs.

We work with a broad range of ductile cast iron grades, such as GJS-400-15, GJS-500-7, ASTM 65-45-12, GGG-50, FCD500, and more, to serve industries like automotive, agriculture, heavy equipment, construction, and energy.

Whether you need robust structural castings, wear-resistant parts, or rapid development of prototypes, LangHe ensures every ductile iron casting project is delivered with precision, reliability, and expert technical support.

Ductile Iron CNC Machining Services

LangHe specializes in high-precision CNC machining services for custom ductile cast iron components, utilizing advanced CNC lathes, 3-axis and 5-axis CNC milling machines, as well as grinding, drilling, tapping, and boring operations. Our machining capabilities are tailored to meet the demanding requirements of industries such as automotive, heavy equipment, energy, and industrial machinery.

As a trusted manufacturing partner, LangHe delivers cost-effective and reliable machining solutions for a wide range of components, including housings, brackets, and complex, tight-tolerance parts. Our focus on accuracy, fast lead times, and full-quality assurance ensures every ductile cast iron part is produced to your exact specifications.

Benefits of Using Ductile Iron in Casting

High Strength and Toughness
Excellent Ductility
Superior Wear Resistance
Good Machinability
Cost-Effective Alternative to Steel
Good Fatigue Resistance
Excellent Castability
Vibration Damping
Wide Range of Grades
High Recyclability

Applications of Ductile Cast Iron Casting Parts

Ductile iron castings are widely used across various industries due to their excellent strength, toughness, and wear resistance.

Automotive

Engine components, crankshafts, suspension parts, brake drums, and steering knuckles.

Agriculture

Tractor parts, plowshares, and tillage equipment requiring durability and impact resistance.

Construction Machinery

Hydraulic pump housings, excavator components, and loader arms for heavy-duty use.

Industrial Equipment

Gears, valve bodies, pump housings, and compressor parts that demand high mechanical performance.

Oil & Gas

Flanges, pipe fittings, and valve components designed for high pressure and corrosion resistance.

Mining

Crusher parts, conveyor rollers, and wear-resistant components exposed to harsh environments.

Energy

Turbine housings, windmill components, and other power generation parts requiring strength and fatigue resistance.

Common Ductile Iron Casting Grades

Standard	Grade	Tensile Strength (MPa)	Elongation (%)	Key Characteristics
ISO 1083	EN-GJS-400-15	400	15	Excellent ductility, good machinability
	EN-GJS-450-10	450	10	Balanced strength and elongation
	EN-GJS-500-7	500	7	Higher strength, moderate ductility
	EN-GJS-600-3	600	3	High strength, lower ductility
	EN-GJS-700-2	700	2	Very high strength, limited ductility
	EN-GJS-800-2	800	2	Exceptional strength, used in structural parts
	EN-GJS-900-2	900	2	Ultra-high strength, low elongation
ASTM A536	60-40-18	414	18	High elongation, excellent impact resistance
	65-45-12	448	12	Widely used, good balance of strength and ductility
	70-50-05	482	5	High strength, moderate ductility
	80-55-06	552	6	Strong, tough, used for automotive & heavy-duty
	100-70-03	700	3	High-strength iron, low elongation
DIN 1693	GGG-40	400	18	Equivalent to ASTM 60-40-18
	GGG-50	500	10	General-purpose ductile iron
	GGG-60	600	3	Strong and hard, low ductility
JIS G5502	FCD400	400	18	Japanese equivalent of EN-GJS-400-15
	FCD450	450	10	General-use ductile iron
	FCD500	500	7	Similar to GJS-500-7
	FCD600	600	3	High strength, structural parts
	FCD700	700	2	Extra high strength, used in critical components

Value-Added Services

LangHe offers a range of surface finishes for metal casting parts to improve their appearance, surface roughness, hardness, and chemical resistance. By selecting the right finish, you can enhance your part’s performance, durability, and aesthetics, ensuring it meets both functional and cosmetic requirements.

Anodizing

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Electroplating

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Powder Coating

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Polishing

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Bead Blasting

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Black Oxide Coating

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Why Choose LangHe for Metal Casting Services?

Whether you need a single part, a low-volume prototype, or a mass-production part, LangHe can provide a one-stop ductile cast iron machining solution.

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Custom Ductile Iron Castings

Ductile Iron Machining Services