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AS 1830 for Grey Cast Iron

AS 1830 is an Australia standard for materials of grey cast iron. It is useful for iron casting buyers and suppliers. However, this standard is not as common as ISO and ASTM standards, so we listed some main information of this standard as followings, and provided the cross-references with other popular standards. Hope this could be useful for those iron foundries in China, such as our Dandong Foundry.

This standard is originated as AS B26 - 1942 and AS B89 - 1942. Previous edition is AS 1830 - 2002. The fourth edition is published in 2007.

This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee MT-001, Iron and Steel, to supersede AS 1830 - 2002, Grey cast iron.

Characteristic

Material Designation

T150 T200 T220 T250 T260 T300 T350
ISO 185/JL/150 ISO 185/JL/200 ISO 185/JL/225 ISO 185/JL/250 ISO 185/JL/275 ISO 185/JL/300 ISO 185/JL/350
Tensile Strength (N/mm2) 150 to 250 200 to 300 225  to 325 250 to 350 275 to 375 300 to 400 350 to 450
Hardness Reference (HB) 150 to 200 170 to 220 180 to 230 190 to 240 200 to 250 210 to 260 230 to 280
Density (kg/dm3) 7.10 7.15 7.15 7.20 7.20 7.25 7.30

Grey flake cast irons are the most used of the general purpose engineering irons. They are relatively inexpensive and easy to produce. They are readily machined and the machined surfaces are resistant to sliding wear.

They have high thermal conductivity, low modulus of elasticity and an ability to withstand thermal shock. This makes the material suitable for castings subjected to local or repeated stressing.

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