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Standards

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The tables below list the most commonly used ADI standards.

Table 1. The European Standard for Austempered Ductile Irons.
 
Designation: BS EN 1564:1997
Material Designation Tensile strength
Rm N/mm² min.
0.2% proof
stress
Rp0.2 N/mm² min.
Elongation
A (%) min.

  

Brinell
hardness
range
(BHN)
Symbol Number
EN-GJS-800-8 EN-JS1100 800 500 8 260-320
EN-GJS-1000-5 EN-JS1100 1000 700 5 300-360
EN-GJS-1200-2 EN-JS1120 1200 850 2 340-440
EN-GJS-1400-1 EN-JS1130 1400 1100 1 380-480

  

Table 2. Impact resistance (notched).
 
Material Designation Impact resistance value at 23±5°C (J)
Symbol Number Mean value of 3 tests Individual value
EN-GJS-800-8S-RT EN-JS1109 10 9

  

Table 3. The American Standard for Austempered Ductile Iron Castings.
 
Designation: ASTM A897M-03 (published January 2004)
Russell
ADI
Grade
Ultimate
Tensile
Stress
N/mm²
0.2% Proof
Stress
N/mm²
Elongation

 %

Impact
Energy

  

Typical
hardness
Range
HB
1/2 750 500 11 110 241-302
1 900 650 9 100 269-341
2 1050 750 7 80 302-375
3 1200 850 4 60 341-444
4 1400 1100 2 35 388-477
5 1600 1300 1 20 402-512

Un-notched Charpy bars tested at 22 ± 4 °C.

  

Russell Ductile Castings has a long experience of ADI castings and would be pleased to discuss your applications. Our engineering team is able to offer application advice to provide you with the lowest cost solution.
 
Contact Russell Ductile Castings if you would like to discuss what an ADI casting can do for you.