- High Performance Gray & Ductile Iron Castings -


- METAL PRODUCTS SPECIFICATIONS* -

Material

Specifications** Grade Minimum Tensile Strength Psi Minimum Yield Strength Psi Minimum Elongation % Hardness BHN Heat Treatment Required

Gray iron

ASTM

A-48

class 30

class 35

30,000

35,000

-

-

-

-

171 - 255

187 - 255

-

-

Ductile iron SAE

J434C

D 4018

D 4512

D 5506

D 7003

60,000

65,000

80,000

100,000

40,000

45,000

55,000

70,000

18

12

6

3

170 max.

156 - 217

185 - 255

241 - 302

Annealed

-

-

-

Austempered ductile iron (ADI) ASTM

A-897

1

2

3

4

5

125,000

150,000

175,000

200,000

230,000

80,000

100,000

125,000

155,000

185,000

10

7

4

1

n/a

269 - 321

302 - 363

341 - 444

388 - 477

420 - 500

Quenched

and

Tempered

* The mechanical properties shown in the table above are intended as guidelines. However, since the properties may vary with the location of a given casting, the suitability of a particular metal for a specific use is best determined by laboratory or service tests. Mechanical properties will vary in terms of microstructure, which especially in as-cast conditions, is dependant on section size, chemical composition and foundry processes.

** Poitras Foundry can supply castings compliant with specifications such as ASTM, SAE, DIN or other equivalent international requirements.

- METAL PRODUCTS -

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Last updated
04/04/2006