Ductile Iron Pipe and Fittings
Material Properties
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Materials - Fittings
Fittings manufactured from Ductile Iron (minimum grade 400MPa / 12% elongation) with a maximum hardness of 250 Hardness Brinell (HB).
Materials - Pipe
Fittings manufactured from Ductile Iron - Grade 420MPa / 10% elongation with a maximum hardness
of 230 Hardness Brinell (HB).
Allowable Pressure Ratings
Allowable pressure ratings table for fittings used within a PN20 or PN35 pipeline with integral joints.
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DN
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Allowable Operating Pressure – Mpa
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Allowable Maximum Operating Pressure – Mpa
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Allowable Site Test Pressure - MPa
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100 – 750
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3.5
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4.2
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4.38
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100 – 750
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2.0
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2.4
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2.50
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Allowable pressure ratings table for fittings used within a PN35 pipeline with flange joints.
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Flange to AS4087
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DN
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Allowable perating Pressure - MPa
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Allowable Max. Operating Pressure – MPa
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Allowable Site Test Pressure - MPa
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PN16
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100 – 750
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1.6
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1.92
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2.0
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PN35
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100 – 750
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3.5
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4.2
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4.38
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Effect on Potable Water
Products in contact with potable water have been tested and comply with the requirements of AS/NZS4020 for products in contact with drinking water.
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Material Properties