Cast Iron with nodular graphite (GGG) is an iron carbon casting material having the carbon component present as graphite which exists almost exclusively in a largely nodular form. Ductile iron is most popular metal material. www.castingquality.com
Reference Casting Standards:
DIN 1693 part 1: Cast Iron with Nodular Graphite Unalloyed and Low Alloy Grades.
DIN 1693 Part 2: Cast Iron with Nodular Graphite Unalloyed and Low Alloy Grades Properties in Cast on Test Piece
Ductile Iron castings can be produced in Casting Quality Industrial by:
- Sand Casting
- Shell Casting
- Lost Form Casting
- Centrifugal casting
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- Sand Casting
Casting Quality focus on Metal Parts industry, we provide professional service in Metal Casting field.
Sand Casting is a popular metal form method, are suitable for all materiel, such as grey iron, ductile iron, malleable iron, carbon steel, stainless steel, aluminum and bronze.
- Investment Casting
also named as precision lost wax casting, mainly suitalbe for carbon steel and stainless steel parts. We also provide grey iron and ductile iron and aluminum and bronze parts by investment casting. It can achieve the best appearance with good tolerance
- Shell Casting
Shell casting method is a good option to replace investment casting and sand casting. the quality is better than sand casting parts, suitable for bulk production.
- CNC Machining
CNC Milling, CNC turning with 5 xix CNC center, we provide precision machining for all castings based on customers design drawings.
- CAD Design
Mechanical Design service based on customers requirement, our software is Solidworks and AutoCAD.
- Tools/Mold Design
Mould design and production will be served for metal casting ad plastic injection industry. Based on our more than 10 years experience, we supply professional molds for our customers in Europe and North American.
Ductile iron standard grades in DIN 1693 Part 1: www.castingquality.com
| Grade | Guaranteed Properties from separately parts | Reference data | |||
| Symbol | Material Number | Tensile Strength, N/mm2, min | 0,2% proof Strength, N/mm2, min | Elongation %, min | Structure |
| GGG-40 | 0.7040 | 400 | 250 | 15 | Predominantly Ferritic |
| GGG-50 | 0.7050 | 500 | 320 | 7 | Ferritic/Pearlitic |
| GGG-60 | 0.7060 | 600 | 380 | 3 | Pearlitic/Ferritic |
| GGG-70 | 0.7070 | 700 | 440 | 2 | Predominantly pearlitic |
| GGG-80 | 0.7080 | 800 | 500 | 2 | Pearlitic |
Ductile Iron Grades with guaranteed impact values in DIN 1693 Part 1: www.castingquality.com
| Grade | Guaranteed Properties from separately parts | Impact Value (J) | ||||
| Symbol | Material Number | Tensile Strength, N/mm2, min | 0,2% proof Strength, N/mm2, min | Elongation %, min | Average from 3 pc | Individual Value |
| GGG-35.3 | 0.7033 | 350 | 220 | 22 | 14 at -40︒C | 11 at -40︒C |
| GGG-40.3 | 0.7043 | 400 | 250 | 18 | 14 at -40︒C | 11 at -40︒C |
Properties in cast-on test pieces, in DIN 1693 Part 2:
| Grade in DIN1693 part 1 | Ruling Wall thickness of the casting, mm | Thickness of Cast-on test piece, mm | Guaranteed Properties from separately parts | Reference data | |||
| Symbol | Material Number | Tensile Strength, N/mm2, min | 0,2% proof Strength, N/mm2, min | Elongation %, min | Structure | ||
| GGG-40.3 | 0.7043 | 30-60 | 40 | 390 | 250 | 15 | Predominantly Ferritic |
| >60-200 | 70 | 370 | 240 | 15 | |||
| GGG-40 | 0.7040 | 30-60 | 40 | 390 | 250 | 15 | Predominantly Ferritic |
| >60-200 | 70 | 370 | 240 | 12 | |||
| GGG-50 | 0.7050 | 30-60 | 40 | 450 | 300 | 7 | Ferritic Pearlitic |
| >60-200 | 70 | 420 | 290 | 5 | |||
| GGG-60 | 0.7060 | 30-60 | 40 | 600 | 360 | 2 | Pearlitic Ferritic |
| >60-200 | 70 | 550 | 340 | 1 | |||
| GGG-70 | 0.7070 | 30-60 | 40 | 700 | 400 | 2 | Predominantly pearlitic |
| >60-200 | 70 | 650 | 380 | 1 | |||
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Note: GGG 40.3 also have impact requirement:
| Grade in DIN1693 part 1 | Ruling Wall thickness of the casting, mm | Thickness of Cast-on test piece, mm | Impact Value at -20︒C | ||
| Symbol | Material Number | Average from 3 pieces | Individual Value | ||
| GGG-40.3 | 0.7043 | 30-60 | 40 | 14 J | 11 J |
| >60-200 | 70 | 12 J | 9 J | ||
No any requirement about chemistry in all Standards, but we will suggest the chemistry as our experience in Casting industry:
| DIN Grade | Chinese Grade | C | Si | Mn | P ≤ | S≤ | Mg | RE | Others |
| GGG40 | QT400-15 | 3.5-3.6 | 3.0-3.2 | 0.5 | 0.07 | 0.02 | 0.04 | 0.02 | – |
| GGG50 | QT500-7 | 3.6-3.8 | 2.5-2.9 | 0.6 | 0.08 | 0.025 | 0.03-0.05 | 0.03-0.05 | – |
| GGG60 | QT600-3 | 3.6-3.5 | 2.0-2.4 | 0.5-0.7 | 0.08 | 0.025 | 0.035-0.05 | 0.025-0.045 | – |
| GGG70 | QT700-2 | 3.7-4.0 | 2.3-2.6 | 0.5-0.8 | 0.08 | 0.02 | 0.035-0.065 | 0.035-0.065 | Mo 0.15-0.4
Cu 0.4-0.8 |
| GGG80 | QT800-2 | 3.7-4.0 | 2.5 | 0.5 | 0.07 | 0.03 | – | – | Mo 0.039
Cu 0.82 |
Ductile Iron Heat treatment process: www.castingquality.com
Generally ductile iron will be supplied in casting condition if no special requirement. But to improve iron property, the heat treatment process can be chosen based on different microstructure and final application, such as Annealing, Tempering, Quenching and Normalizing. Pls contact with Casting Quality for details.
Ductile Iron Typical Casting Application
- GGG40: good weld able property and machining property; it’s the popular iron for machinery, valve, truck, railway, gearbox, flywheels etc.
- GGG50: better strength, mostly used in engineer, , railway, motor etc.
- GGG60: little better abrasive property.
- GGG70/GGG80: high strength and abrasive property. It will be used in high strength application.
Similar Ductile Iron Casting Grades: www.castingquality.com
| Index | Country | Ductile Iron Grade | |||||||
| 1 | China | QT400-15 | QT400-18 | QT450-10 | QT500-7 | QT600-3 | QT700-2 | QT800-2 | QT900-2 |
| 2 | Japanese | FCD400 | — | FCD450 | FCD500 | FCD600 | FCD700 | FCD800 | — |
| 3 | USA | 60-40-18 | 65-45-12 | 70-50-05 | 80-60-03 | 100-70-03 | 120-90-02 | — | |
| 4 | Russia | BЧ40 | — | BЧ45 | BЧ50 | BЧ60 | BЧ70 | BЧ80 | BЧ100 |
| 5 | Germany | GGG40 | — | — | GGG50 | GGG60 | GGG70 | GGG80 | — |
| 6 | Italy | GS370-17 | GS400-12 | GS500-7 | GS600-2 | GS700-2 | GS800-2 | — | |
| 7 | France | FGS400-15 | FGS400-18 | FGS450-10 | FGS500-7 | FGS600-3 | FGS700-2 | FGS800-2 | FGS900-2 |
| 8 | England | 400/18 | 450/10 | 500/7 | 600/3 | 700/2 | 800/2 | 900/2 | |
| 9 | Poland | ZS3817 | ZS4012 | ZS4505/5002 | ZS6002 | ZS7002 | ZS8002 | ZS9002 | |
| 10 | India | SG370/17 | SG400/12 | SG500/7 | SG600/3 | SG700/2 | SG800/2 | — | |
| 11 | Romania | — | — | — | — | FGN70-3 | — | — | |
| 12 | Spanish | FGE38-17 | FGE42-12 | FGE50-7 | FGE60-2 | FGE70-2 | FGE80-2 | — | |
| 13 | Belgium | FNG38-17 | FNG42-12 | FNG50-7 | FNG60-2 | FNG70-2 | FNG80-2 | — | |
| 14 | Australia | 300-17 | 400-12 | 500-7 | 600-3 | 700-2 | 800-2 | — | |
| 15 | Sweden | 0717-02 | — | 0727-02 | 0732-03 | 0737-01 | 0864-03 | — | |
| 16 | Hungary | GǒV38 | GǒV40 | GǒV50 | GǒV60 | GǒV70 | — | — | |
| 17 | Bulgaria | 400-12 | 380-17 | 450-5 | 500-2 | 600-2 | 700-2 | 800-2 | 900-2 |
| 18 | ISO | 400-15 | 400-18 | 450-10 | 500-7 | 600-3 | 700-2 | 800-2 | 900-2 |
| 19 | COPANT | — | FMNP45007 | FMNP55005 | FMNP65003 | FMNP70002 | — | — | |
| 20 | Finland | GRP400 | — | GRP500 | GRP600 | GRP700 | GRP800 | — | |
| 21 | Holland | GN38 | GN42 | GN50 | GN60 | GN70 | — | — | |
| 22 | Luxemburg | FNG38-17 | FNG42-12 | FNG50-7 | FNG60-2 | FNG70-2 | FNG80-2 | — | |
| 23 | Austria | SG38 | SG42 | SG50 | SG60 | SG70 | — | — | |
| 24 | Europa-Norm | En-GJS-400-15 | En-GJS-400-18 | En-GJS-450-10 | En-GJS-500-7 | En-GJS-600-3 | En-GJS-700-2 | En-GJS-800-2 | En-GJS-900-2 |
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