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Ductile Cast Iron Butterfly Valve Body

Ductile Cast Iron Butterfly Valve Body

Material: Ductile Iron GGG45, EN-GJS-450
Process: Sand Casting + CNC Machining
Weight: 21 kg
Application: Butterfly Valve Parts

RMC can pour ductile cast 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

 Ductile Iron Grade from Different Countries
No. China Japan U.S.A. ISO German France Russia гост U.K. BS
GB JIS ASTM UNS DIN W-Nr. NF
1 FCD350-22 - - 350-22 - - - Bч35 350/22
2 QT400-15 FCD400-15 - - 400-15 GGG-40 0.7040  EN-GJS-400-15 Bч40 370/17
3 QT400-18 FCD400-18 60-40-18 F32800 400-18 - - EN-GJS-400-18 - 400/18
4 QT450-10 FCD450-10 65-45-12 F33100 450-10 - - EN-GJS-450-10 Bч45 450/10
5 QT500-7 FCD500-7 80-55-6 F33800 500-7 GGG-50 0.7050  EN-GJS-500-7 Bч50 500/7
6 QT600-3 FCD600-3 80-55-06 100-70-03 F3300 F34800 600-3 GGG-60 0.7060  EN-GJS-600-3 Bч60 600/3
7 QT700-2 FCD700-2 100-70-03 F34800 700-2 GGG-70 0.7070  EN-GJS-700-2 Bч70 700/2
8 QT800-2 FCD800-2 120-90-02 F36200 800-2 GGG-80 0.7080  EN-GJS-800-2 Bч80 800/2
8 QT900-2 120-90-02 F36200 800-2 GGG-80 0.7080  EN-GJS-900-2 Bч100 900/2


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


Mechanical Properties of Ductile (Nodular) Cast Iron 
Item according to DIN EN 1563 Measure Unit EN-GJS-350-22-LT EN-GJS-400-18-LT EN-GJS-400-18 EN-GJS-500-7 EN-GJS-600-3 EN-GJS-700-2 EN-GJS-800-2
EN-JS 1015 EN-JS 1025 EN-JS 1020 EN-JS 1050 EN-JS 1060 EN-JS 1070 EN-JS 1080
Tensile Strength Rm min.MPA 350 400 400 500 600 700 800
2% Yield Strength Rp0.2 min.MPA 220 240 250 320 370 420 2) 480 2)
Elongation A % 22,0 18,0 18,0 7,0 3,0 2,0 2,0
Hardness HB 110-150 120-160 140-190 170-220 200-250 230-280 250-330
Structures mainly ferritic mainly ferritic mainly ferritic ferritic + pearlite ferritic + pearlite mainly pearlite all pearlite
Shear Stress σaB MPa 315 360 360 450 540 630 720
Torsion TtB MPa 315 360 360 450 540 630 720
Modules of elasticity E GPa 170 170 170 175 175 175 175
Poisson number v – 0,280 0,280 0,280 0,280 0,280 0,280 0,280
Compressive Strength σdB MPa 700 700 800 870 1000 1150
Frature Toughness Klc MPa ·m 31 30 30 25 20 15 14
Density g/cm3 7,1 7,1 7,1 7,1 7,2 7,2 7,2