Ductile Cast Iron Parts

Ductile Cast Iron Parts

Material: Ductile Iron (QT450)
Process: Green Sand Casting
Weight: 21 kg
Application: Valve Parts

As a ductile cast iron parts manufacturer and foundry, RMC can pour iron castings using our No-bake process up to ten tons finished weight in gray iron castings and ductile iron castings, and up to five tons in steel castings and stainless steel castings.

Description

As a ductile cast iron parts manufacturer and foundry, RMC can pour iron castings using our No-bake process up to ten tons finished weight in gray iron castings and ductile iron castings, and up to five tons in steel castings and stainless steel castings. RMC can produce casting parts in a wide variety of materials, including grey iron, ductile iron, stainless steel, carbon steel, wear-resistant steel, and heat-resistant steel based on different standards from China and overseas.


▶ Capabilities of Sand Casting moulded by hand:
• Max Size: 1,500 mm × 1000 mm × 500 mm
• Weight Range: 0.5 kg - 500 kg
• Annual Capacity: 5,000 tons - 6,000 tons
• Tolerances: On Request.

▶ Capabilities of Sand Casting by Automatic Molding Machines:
• Max Size: 1,000 mm × 800 mm × 500 mm
• Weight Range: 0.5 kg - 500 kg
• Annual Capacity: 8,000 tons - 10,000 tons
• Tolerances: On Request.

▶ Main Production Procedure
• Patterns & Tooling Design → Making Patterns → Moulding Process → Chemical Composition Analysis → Melting & Pouring → Cleaning, Grinding & Shot Blasting → Post Processing or Packing for Shipment

▶ Post-Casting Process
• Deburring & Cleaning
• Shot Blasting / Sand Peening
• Heat Treatment: Normalization, Quench, Tempering, Carburization, Nitriding
• Surface Treatment: Andonized, Hot Dip Zinc, Polishing, Painting,
• Machining: Turning, Milling, Lathing, Drilling, Honing, Grinding,

▶ General Commerial Terms
• Main workflow: Inquiry & Quotation → Confirming Details / Cost Reduction Proposals → Tooling Development → Trial Casting → Samples Approval → Trial Order → Mass Production → Continuous Order Proceeding
• Leadtime: Est. 15-25 days for tooling development. Est. 20 days for mass production.
• Payment Terms: To be negotiated.
• Payment methods: T/T, L/C, West Union, Paypal.


The following is the comparison of the ductile iron from different standards.


Ductile Iron Comparison Chemical Composition(%) Matrix Structure
GB/T 1348-1988 ISO 1083:1987(E) ASTM A536-84(2004) EN 1563:-1997 JIS G5502-2001 ГОСТ7293 C Si Mn P S Mg RE others
QT400-18 400-18 60-40-18① F32800 GJS-400-18 JS1020 FCD400-18 вч40 3.6-3.8 2.3-2.7 <0.5 <0.08 <0.025 0.03-0.05 0.02-0.03 Annealed Ferrite
QT400-15 400-15 60-42-10 F32900 GJS-400-15 JS1030 FCD400-15 вч40 3.5-3.6 3.0-3.2 <0.5 <0.07 <0.02 0.04 0.02 Annealed Ferrite
QT450-10 450-10 65-45-12 F33100 GJS-450-10 JS1040 FCD450-10 вч45 3.4-3.9 2.7-3.0 0.2-0.5 <0.07 <0.03 0.06-0.1 0.03-0.1 Annealed Ferrite
QT500-7 500-7 70-50-05 GJS-500-7 JS1050 FCD500-7 вч50 3.6-3.8 2.5-2.9 <0.6 <0.08 <0.025 0.03-0.05 0.03-0.05 Pearlite + Ferrite
QT600-3 600-3 80-60-03② F34100 GJS-600-3 JS1060 FCD600-3 вч60 3.6-3.8 2.0-2.4 0.5-0.7 <0.08 <0.025 0.035-0.05 0.025-0.045 Normalized Pearlite
QT700-2 700-2 100-70-03 F34800 GJS-700-2 JS1070 FCD700-2 вч70 3.7-4.0 2.3-2.6 0.5-0.8 <0.08 <0.02 0.035-0.065 0.035-0.065 Mo0.15-0.4 Cu0.4-0.8 Mix Microstructure
QT800-2 800-2 - GJS-800-2 JS1080 FCD800-2 вч80 3.7-4.0 <2.5 <0.5 <0.07 <0.03 Mo0.39 Cu0.82 Mix Microstructure
QT900-2 900-2 120-90-02 F36200 GJS-900-2 JS1090 - вч90 3.5-3.7 2.7-3.0 <0.5 <0.08 <0.025 0.03-0.05 0.025-0.045 Mo0.15-0.25 Cu0.5-0.7 Lower Bainite
① from ASTM A716-2003. ② from ASTM A476/A476M-2000。

The Sand Casting Facilities at RMC:


sand casting facilities