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Ductile Iron Castings
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80-55-6 Sand Casting Municipal Covers

80-55-6 Sand Casting Municipal Covers

80-55-6 Sand Casting Municipal Covers

OEM Municipal Engineering Manhole Cover

Material: Ductile Cast Iron  GGG50, QT500, EN-GJS-500-7

Casting Process: Sand Casting + Paint

Unit Weight: 200 kg

Application: Construction and public

Quality:High Precision

Quantity: No Min Order

Foundry: OEM or ODM Service

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Ductile Iron Manhole Covers usually use as covers of ditches, pipeline trenches, underground channels, ventilation shaft, light well, and inspection well etc. at sidewalk, driveway, courtyard or buildings.

OEM & ODM Cast Iron Manhole Covers for Municipal Engineering from Hengchang Foundry

Hengchang is the leading producer of gray, ductile iron in China, melting more than 6000 tons per year, with more than 15 years experience. We produce different profile of manhole covers, most of products are produced by ductile iron.

Ductile iron, also known as ductile cast iron, nodular cast iron, spheroidal graphite iron, spheroidal graphite cast iron and SG iron, is a type of graphite-rich cast iron discovered in 1943 by Keith Millis .While most varieties of cast iron are weak in tension and brittle, ductile iron has much more impact and fatigue resistance, due to its nodular graphite inclusions.

Ductile iron is not a single material but part of a group of materials which can be produced with a wide range of properties through control of their microstructure. The common defining characteristic of this group of materials is the shape of the graphite. In ductile irons, graphite is in the form of nodules rather than flakes as in grey iron. Whereas sharp graphite flakes create stress concentration points within the metal matrix, rounded nodules inhibit the creation of cracks, thus providing the enhanced ductility that gives the alloy its name. Nodule formation is achieved by adding nodulizing elements, most commonly magnesium (magnesium boils at 1100 °C and iron melts at 1500 °C) and, less often now, cerium(usually in the form of mischmetal. Tellurium has also been used. Yttrium , often a component of mischmetal, has also been studied as a possible nodulizer.

 

Comparison-Equivalent Grades of Ductile Iron


Ductile Iron Tensile Requirements


Product details

Material Gray iron ,ductile iron, brass, carbon steel, copper, aluminum, alloy steel, etc
standard ASTM, ASME,DIN, EN, BS, JIS, ANSI, AS,GB etc.
process Green sand casting ,resin sand casting, shell molding casting,vacuum casting, continuous concast, machining
Weight range 0.5-2,000kg
Surface treatment painting, polishing, heat treatment, annealing or galvanization etc.
Size and design As per the customer's drawings, samples and requirements
Machining complete machining such as CN machining,CNC lathe,CNC milling,drilling etc.
Packing As per customers' requirements
Inspection in-house or the third Party

Grey & ductile iron casting:

- weight: 0.5-2000KG

- technology: Green sand, resin sand, vacuum casting, shell molding

- production line: DISA line, auto molding line, manual molding machine

- application: Pump, valve, automobile, agriculture, municipal, sports, metallurgy other mechanical field 

 

Vacuum moulding line:

- available material: grey iron, ductile iron and alloy steel

- flask dimension:  1,000 mm × 800 mm × 500 mm

- weight scope: 0.5-100kgs

 

Resin Sand moulding line:

- available material: grey iron, ductile iron and steel

- flask dimension: 4200*4200*2000mm

- weight scope: 10-2000kgs

 

Moulding Autoline:

- available material: grey iron, ductile iron

- flask dimension:

- 508*609*250mm

- 350*450*150mm

- 400*500*180mm 

- weight scope:0.2-50kgs

 

Our Advantages in Sand Casting Field:

• Over 15 years of experience in sand casting, shell molding casting and machining technology.
• Dimensionally accurate cores for complex internal contours.
• Strictly control the raw materials.
• Quality management throughout the production process and maximum process reliability.

Available Grade of Ductile Iron in our Foundry: QT400-15, QT400-18, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2, 60-40-18, 65-45-12, 80-55-6, 80-55-06, 100-70-03

 

Hengchang is producing various ductile iron casting products for overseas customers in Japan, USA, Canada, Germany, Danmark, Russia and Dubai.

Zhangzhou Hengchang Machinery Co.,Ltd Production Process

 Ductile Iron Municipal Covers

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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