Cast iron tensile strength yield stress brinell hardness elongation grade 420 12 to bs 2789 1973 6040 to astma536 1972 400 250 160 18 british standard 2789 british standard 2789 qutonesyes, british standard 2789 this british standard 2789 pdf file is free to download register an account to download. All bsi british standards available online in electronic and print formats. To take the uk as an example one of the earlier standards used was bs 2789. Australia as 1831 400 250 12 great britain bs 2789 2789 sng 27 12 usa astm a536 65 45 12 description. As an s g iron it is available in diameters and a limited range of flat sections. Spheroidal graphite cast iron 42012 novacast alloy specifications. Extremely hard cr carbides in a martensitic matrix at a bulk hardness. Ultrasonic inspection by manual methods depends on the skill of the.
The properties of 11 grades of sg iron are given in bs 2789. Available as both filler wire and manual electrodes. Meehanite type ws almanite is a martensitic iron with free carbon in the. West yorkshire steel are suppliers of this spheroidal graphite iron sg iron specification as continuously cast bar. This material grade is not common material grade of sg cast iron, so normally, we will use astm a536 6545 12 to replace it. Grade and mechanical properties and additional conditions of nodular cast iron. Grade st1 sg iron ductile continuous cast iron related specifications. The main characteristic of the ductile iron grades is a spheroidal shaped graphite structure. Occasionally referenced as a ductile iron grade bs2789 grade 42012 is a spheroidal graphite iron that possesses strength, impact. The access covers and frames described herein were designed to satisfy etisalat requirements, as outlined in their tender specifications ms 1c and ms 114b, and comply with british. A source of confusion is the large number of production standards that have grown up across the world to enable buyers to specify a particular grade. This meehanite type was introduced in the uk to accommodate a grade.
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