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Gray Iron Casting Series 3
JHshukong
Setting new standards for gray iron performance, our High-Strength High-Precision Gray Iron Casting Series 3 delivers exceptional tensile strength and dimensional accuracy for heavy equipment components. Cast from ASTM A48 Grade 60-70 and EN-GJL-350, these parts combine the cost-effectiveness of gray iron with near-ductile iron strength, ideal for load-bearing applications in construction, mining, and agriculture.
Enhanced Mechanical Properties
Strength Leadership:
Tensile strength 60-70ksi (414-483MPa), 30% higher than standard gray iron, with hardness HB 240-280 for wear resistance in heavy loads.
Modulus of rupture ≥50ksi (345MPa), critical for components like crane hooks and excavator arms.
Precision Engineering: CT10-11 tolerance (±0.2-0.4mm for 100mm features) via CNC-machined metal patterns, ensuring tight fits for mating components.
Casting Process Innovation
Low-Pressure Sand Casting: Reduces porosity by 30% compared to conventional methods, achieving density ≥98% and improved fatigue life (10⁶ cycles at 40ksi).
Coreless Technology: 3D-printed sand cores enable complex internal geometries (e.g., hollow sections, thin walls ≥5mm) without core print restrictions.
Surface & Heat Treatment
Machinability: Pre-machined surfaces achieve Ra ≤3.2μm, reducing post-casting processing time by 40% for critical interfaces (e.g., flange faces, bearing seats).
Normalizing Treatment: Refines pearlite structure, increasing tensile strength by 15% and reducing hardness variation ≤10HB across part sections.
Environmental Resistance
Abrasion Resistance: Graphite flakes act as solid lubricants, reducing wear from coarse particulates (e.g., sand, gravel) in mining conveyor systems (abrasion loss ≤30mg/1000 cycles).
Corrosion Protection: Optional epoxy-phenolic coatings (150μm) for saltwater environments, extending service life by 25% in coastal applications.
Construction Machinery:
Excavator boom brackets, loader bucket frames, and crane counterweights, supporting dynamic loads up to 50 tons (ISO 12944 C5-M compliant).
Mining Equipment:
Jaw crusher plates, conveyor rollers, and ore bin liners, resisting abrasion from high-hardness ores (hardness ≥600HB, ASTM G65 Method A).
Agricultural Machinery:
Tractor axle housings, combine harvester frames, and plow shares, withstanding soil corrosion and repetitive stress (SAE J2931 compliant).
Strength-Precision Balance
Unique heat treatment process increases tensile strength by 20% while maintaining CT10 precision, a rarity in gray iron casting (patent pending).
Heavy-Duty Testing
In-house load testing (up to 100 tons) and metallographic analysis ensure compliance with ISO 6892-1 and ASTM A370 standards for heavy equipment.
Design Support
Engineering team provides stress analysis and material substitution recommendations, optimizing part weight by 10% without strength loss.
Global Logistics
Dedicated freight partners for oversized parts (max 3m diameter), with crating solutions compliant with IMO IMDG Code for international shipping.
Setting new standards for gray iron performance, our High-Strength High-Precision Gray Iron Casting Series 3 delivers exceptional tensile strength and dimensional accuracy for heavy equipment components. Cast from ASTM A48 Grade 60-70 and EN-GJL-350, these parts combine the cost-effectiveness of gray iron with near-ductile iron strength, ideal for load-bearing applications in construction, mining, and agriculture.
Enhanced Mechanical Properties
Strength Leadership:
Tensile strength 60-70ksi (414-483MPa), 30% higher than standard gray iron, with hardness HB 240-280 for wear resistance in heavy loads.
Modulus of rupture ≥50ksi (345MPa), critical for components like crane hooks and excavator arms.
Precision Engineering: CT10-11 tolerance (±0.2-0.4mm for 100mm features) via CNC-machined metal patterns, ensuring tight fits for mating components.
Casting Process Innovation
Low-Pressure Sand Casting: Reduces porosity by 30% compared to conventional methods, achieving density ≥98% and improved fatigue life (10⁶ cycles at 40ksi).
Coreless Technology: 3D-printed sand cores enable complex internal geometries (e.g., hollow sections, thin walls ≥5mm) without core print restrictions.
Surface & Heat Treatment
Machinability: Pre-machined surfaces achieve Ra ≤3.2μm, reducing post-casting processing time by 40% for critical interfaces (e.g., flange faces, bearing seats).
Normalizing Treatment: Refines pearlite structure, increasing tensile strength by 15% and reducing hardness variation ≤10HB across part sections.
Environmental Resistance
Abrasion Resistance: Graphite flakes act as solid lubricants, reducing wear from coarse particulates (e.g., sand, gravel) in mining conveyor systems (abrasion loss ≤30mg/1000 cycles).
Corrosion Protection: Optional epoxy-phenolic coatings (150μm) for saltwater environments, extending service life by 25% in coastal applications.
Construction Machinery:
Excavator boom brackets, loader bucket frames, and crane counterweights, supporting dynamic loads up to 50 tons (ISO 12944 C5-M compliant).
Mining Equipment:
Jaw crusher plates, conveyor rollers, and ore bin liners, resisting abrasion from high-hardness ores (hardness ≥600HB, ASTM G65 Method A).
Agricultural Machinery:
Tractor axle housings, combine harvester frames, and plow shares, withstanding soil corrosion and repetitive stress (SAE J2931 compliant).
Strength-Precision Balance
Unique heat treatment process increases tensile strength by 20% while maintaining CT10 precision, a rarity in gray iron casting (patent pending).
Heavy-Duty Testing
In-house load testing (up to 100 tons) and metallographic analysis ensure compliance with ISO 6892-1 and ASTM A370 standards for heavy equipment.
Design Support
Engineering team provides stress analysis and material substitution recommendations, optimizing part weight by 10% without strength loss.
Global Logistics
Dedicated freight partners for oversized parts (max 3m diameter), with crating solutions compliant with IMO IMDG Code for international shipping.
