Austempered Ductile Iron Process

Austempered Ductile Iron Process

Austempered Ductile Iron Process Production For Different ADI Grade Castings Product Description and Process Austempered Ductile Iron Process Production For Different ADI Grade Castings Production process: Green sand casting process Weight range: from 0.5 kilograms to 500 kilograms Heat...

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Austempered Ductile Iron Process Production For Different ADI Grade Castings

Product Description and Process

Austempered Ductile Iron Process Production For Different ADI Grade Castings

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 is Austempered Ductile Iron (ADI)?
 Austempered ductile iron castings, or more commonly ADI castings, is a ductile iron casting which is processed by a special heat treatment. The austempering process, with  ductile iron’s superior castability, results in a material which can be used to cast complex shapes, with a greater consistency of quality, and often at less cost. The heat treatment requires an interrupted quench, usually into a salt bath, to cool the cast part at a planned rate and long enough to achieve the desired austempered result. The resulting material has a combination of exceptional strength and toughness, meeting and often exceeding those of alloy steels.


AUSTEMPERED DUCTILE  IRON CASTINGS

Grades  110-70-11, 130-90-09, 150-110-07, 175-125-04, 200-155-02 & 230-185-01

ADI offers the design engineer a remarkable combination of strength, toughness, and wear resistance, with high elongation characteristics. Our ADI can be substituted for steel forgings and castings in many applications, with no loss of performance. The following grades and typical properties are in accordance with ASTM A897.

Grade

Tensile* Strength (KSI)

Yield* Strength (KSI)

Elongation*

Typical Impact Energy

(FT-LBS)

Typical Brinell Hardness

0

110

70

11

80

241-302

1

130

90

9

75

269-341

2

150

110

7

60

302-375

3

175

125

4

45

341-444

4

200

155

2

25

388-477

5

230

185

1

15

402-512


ASTM A89

CONVENTIONAL NAME

ASTM A897

TENSILE STRENGHT RM
(N/MM2 MIN)

0.2 PROOF STRESS RP0,2
(N/MM2 MIN)

ELONGATION A4
(% MIN) L0=4XD

BRINELL HARDNESS
HBW

ADI 800

750-500-11

800

500

10

250-310

ADI 900

900-650-09

900

600

8

280-340

ADI 1050

1050-750-07

1050

700

6

320-380

ADI 1200

1200-850-04

1200

850

3

340-420

ADI 1400

1400-1100-02

1400

1100

1

380-480

ADI 1600

1600-1300-01

1600

1300

-

Min. 450


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