ASTM A536 Standard for Ductile Iron
ASTM
has five standards for
ductile Iron.
ASTM A536 is the most frequently used,
covering the general engineering grades
of ductile Iron castings.
The purpose
of this standard is providing an
standard physical properties data for
ductile Iron castings, which will be
helpful to the ductile iron casting
buyers and manufacturers. The
specification for properties can ensure
the castings could be used for normal
application. The use of standard
specifications simplifies the purchase
of castings from multiple suppliers
because it defines a standard casting
whose properties meet the designer's
needs, regardless of where, or how the
castings were produced.
Specifications should be chosen
carefully for the casting application.
This is also a reference data, not a
compulsive requirements for some
application. Meeting the application
should be the final standard for the
iron castings. Needless restriction to
the materials will cause the complicated
casting processes and increased
production costs for iron foundries. The
requirements should be best suited to
its purpose.
Once the
specification has been selected, the
foundries must ensure that all castings
delivered meet or exceed the
specification.
The
following physical properties are the
main content of ASTM A536.
The degree and physical
properties of ductile iron
Degree |
Tensile Strength
σ≥/Mpa |
Yield Strength
σ≥/Mpa |
Elongation
δ≥(%) |
ANSI/ASTM |
UNS |
60-40-18
65-45-12
80-55-06
100-70-03
120-90-02 |
F32800
F33100
F33800
F34800
F36200 |
414
448
552
689
827 |
276
310
379
483
621 |
18
12
6.0
3.0
2.0 |
Special Purpose |
|
|
|
|
60-42-10
70-50-05
80-60-03 |
|
415
485
555 |
290
345
415 |
10
5.0
3.0 |
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