Cast Iron Parts for Vehiicles

Cast Iron Parts for Vehiicles

OEM Casting For Railway Parts Manufacturer Cast Iron Foundry Product Description and Process OEM Casting For Railway Parts Manufacturer Cast Iron Foundry Production process: green sand casting process pre-coated sand casting process resin sand casting process Weight range: from 50 gram to 2,000...

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OEM Casting For Railway Parts Manufacturer Cast Iron Foundry

Product Description and Process

OEM Casting For Railway Parts Manufacturer Cast Iron Foundry


Production process:

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 are the Benefits of Ductile Iron?

Ductile iron castings are very strong compared to regular cast iron (gray iron).  The tensile strength of cast iron is 20,000 – 60,000 psi while ductile iron starts at 60,000 psi and can go to 120,000 psi.  The yield strength for ductile iron is generally 40,000 – 90,000 psi but the yield strength of cast iron is so low it is considered not measurable.

Let us put strength in a different way.  We have seen gray iron parts break when they hit the ground after falling ten feet.  With a ductile iron casting, you can hit the part all day long with an eight-pound sledge hammer and it is not likely to crack.

What causes the problem for gray iron is those graphite flakes which encourage fractures along the flakes, while the nodules in ductile iron work at keeping the iron together.  Given the exact same scenario of the same part made from the two different metals, while the brittle gray iron wants to crack, the ductile iron wants to bend.

Ductile iron also has what is called excellent wear resistance because of the graphite in the iron.  When you have something rubbing against ductile iron, the ductile iron wears away much slower than many other metals.  The wear resistance is partly from the graphite structures that can act like a dry lubricant on the iron.

Ductile iron also dissipates (gets rid of) heat very well and can be machined fairly easily, though ductile iron is harder to work with than regular gray cast iron.  Ductile cast iron dampens vibration and sound much better than steel would making ductile iron a good match for use on large machines.


Ductile Iron Grade Chart

ASTM A536 1993 (USA)

Grade

Tensile Strength

σ≥/Mpa

Yield Strength

σ≥/Mpa

Elongatio

nδ≥(%)

ANSI/ASTM

UNS

60-40-18

F32800

414

276

18

65-45-12

F33100

448

310

12

80-55-06

F33800

552

379

6.0

100-70-03

F34800

689

483

3.0

120-90-02

F36200

827

621

2.0

Special Purpose

///

60-42-10

/

415

290

10

70-50-05

/

485

345

5.0

80-60-03

/

555

415

3.0


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