Nodular Iron Casting

Nodular Iron Casting

Nodular Iron Castings With Good Nodulizing Grade For Industry Components Product Description and Process Nodular Iron Castings With Good Nodulizing Grade For Industry Components Production process includes: green sand casting process pre-coated sand casting process resin sand casting process...

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Nodular Iron Castings With Good Nodulizing Grade For Industry Components

Product Description and Process

Nodular Iron Castings With Good Nodulizing Grade For Industry Components


Production process includes:

green sand casting process

pre-coated sand casting process

resin sand casting process

Weight range: from 50 gram to 2,000 kilograms for ductile iron casting product


Machining process:

CNC machine, machining center, lathe, mill machine, drill machine, etc.


Surface treatment process:

paint coating, electrophoretic paint coating, electrogalvanizing coating, black oxide coating, phosphate treatment,  powder coating, etc.


Product  Material and Uses

Normally production with gray iron HT200, HT250, ductile iron 65-45-12, 60-40-18, 80-55-06, 80-60-03, 100-70-03, etc.

The ductile iron casting products are widely used for Auto-cars, trains, trucks, vehicle components, mining machinery components, agricultural machinery parts, textile machinery parts, construction machinery parts, etc.


What is Ductile Iron Used For? (Applications)

Much of the annual production of ductile iron is in the form of ductile iron pipe, used for water and sewer lines. It competes with polymeric materials such as PVC, HDPE, LDPE and polypropylene, which are all much lighter than steel or ductile iron; being softer and weaker, these require protection from physical damage.

Ductile iron is specifically useful in many automotive components, where strength must surpass that of aluminum but do not necessarily require steel. Other major industrial applications include off-highway diesel trucks, Class 8 trucks, agricultural tractors, and oil well pumps. In wind power industry nodular cast iron is used for hubs and structural parts like machine frames. Nodular cast iron is suitable for large and complex shapes and high (fatigue) loads.

SG iron is used in many grand piano harps (the iron plates to which high-tension piano strings are attached).


Ductile iron is great for use where you need strong metal with wear resistance.

Here is a sample list of things made from or contain ductile iron:

Pipe and pipe fittings (almost 50% of ductile iron sold in the US is for pipe and fittings)

Axles

Connecting rods (like in engines)

Crankshafts

Cylinders

Disc brake calipers

Gears and Gear Boxes

Housings and manifolds

Hydrostatic Barrels

Idler arms

Large Machines

Machine Tooling

Military uses

Piano Harps (the part that holds the strings of a piano)

Spindle supports

Steering knuckles

Suspension system parts

Truck axles

Valves (especially high-pressure valves)

Wheel hubs

Yokes for power transmission

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Common Ductile Iron Grades

While there are many different ductile iron specifications, foundries routinely offer 3 common grades

Physical and Mechanical Properties

ASTM A536,

Grade 60-40-18

ASTM A536,

Grade 65-45-12

ASTM A536,

Grade 80-55-06

Tensile Strength, min, psi

60,000

65,000

80,000

Tensile Strength, min, MPa

414

448

552

Yield Strength, min, psi

40,000

45,000

55,000

Yield Strength, min, MPa

276

310

379

Elongation in 2 in. or 50 mm, min %

18

12

6

Density lb/in3

0.256

0.256

0.256

Density g/cm3

7.1

7.1

7.1

Melting Temperature (Degrees F)

2,100 – 2,190

2,100 – 2,190

2,100 – 2,190

Melting Temperature (Degrees C)

1,150 - 1,200

1,150 - 1,200

1,150 - 1,200

Compressive Strength Ksi

429

429

429

Compressive Strength MPa

2960

2960

2960

UNS

F32800

F33100

F33800


GB/T 1348 1998 (China)

Grade

Tensile strength

σb≥/MPa

Yield strength

σ0.2≥/MPa

Elongation

δ5≥(%)

Hardness

HBS

QT400-18

QT400-18-LT*

400

250

18

130~180

QT400-15

400

250

15

130~180

QT450-10

450

310

10

160~210

QT500-7

500

320

7

170~230

QT600-3

600

370

3

190~270

QT700-2

700

420

2

225~305

QT800-2

800

480

2

245~335

QT900-2

900

600

2

280~360

*Low temperature V notch impact tested (-20±2℃) 


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