Abrasion Resistant Cast Iron

Abrasion Resistant Cast Iron

Abrasion Resistant Cast Iron Parts ADI Castings Batch Production Supply Product Description and Process Abrasion Resistant Cast Iron Parts ADI Castings Batch Production Supply Production process: Green sand casting process Weight range: from 0.5 kilograms to 500 kilograms Heat Treatment Process:...

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Abrasion Resistant Cast Iron Parts ADI Castings Batch Production Supply

Product Description and Process

Abrasion Resistant Cast Iron Parts ADI Castings Batch Production Supply

Production process: Green sand casting process

Weight range: from 0.5 kilograms to 500 kilograms

Heat Treatment Process: isothermal quenching (isothermal hardening) (salt bath treatment)

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 ductile iron, and then do the isothermal quenching treatment

The ADI casting products are widely used for wear resistant industry parts.


What are some Benefits of Austempered Ductile Iron Castings?

•Up to 40% less cost than hardened steel forgings.

•Lower operating noise levels.

•10% less weight than steel.

•Better wear than case hardened steel.

•Excellent resistance to crack propagation.

•Good impact strength to -120ºF.

•Work hardening.


Is Machining of Austempered Ductile Iron Difficult?

Machining of A.D.I. is generally speaking, possible, using normal machining techniques. Only the tapping of small diameter holes (especially dead end) and scraping of the softest type is very difficult due to work hardening. It is however common practice to machine to near final size and then heat treat. This is possible because the heat treatment is considered “soft”, and the consequent volume changes are small, and predictable with volume expansion of between only 0.2% – 0.4%.


Standard ADI Grades (USA) ASTM 897-90 (ASTM 897M-90)

Grade

Tensile Strength

(min)

Yield Strength

(min)

Elongation%

Impac tEnergy *

Typical Hardness BHN

KsiNmm2KsiNmm2Ft-lbs
Joules

1

125

850

80

550

10

75

100

269-321

2

150

1050

100

700

7

60

80

302-363

3

175

1200

125

850

4

45

60

341-444

4

200

1400

155

1100

1

25

35

388-477

5

230

1600

185

1300

-

-

-

444-555

* Un-notched charpy bars tested @ 22'C (+/-4'C)

Refer to relevant Standard for full details


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