AS 1832-2007 pdf free download

AS 1832-2007 pdf free download.Malleable cast iron.
All agreements between the manufacturer and the purchaser shall be made by the time of acceptance of the order.
6 Manufacture
The method of manufacture of malleable cast iron, as well as its chemical composition and heat treatment, shall be left to the discretion of the manufacturer, who shall ensure compliance with the property requirements given in this International Standard for the grade required in the order.
For malleable cast iron to be used in special applications, the chemical composition and any special heat treatment may be the subject of an agreement between the manufacturer and the purchaser at the time of acceptance of the order,
To optimize the impact resistance of all grades specified in Tables 1 and 2, the phosphorus content should not exceed 0,10 %.
7 Mechanical properties
7.1 Tensile strength and elongation
When tested in accordance with 9.1, the values of tensile strength (Rm) and percentage elongation after fracture (434) shall be in accordance with the requirements specified in Tables 1 and 2.
NOTE For definitions of Rm and 434. see ISO 6892.
7.2 0,2 % Proof strength
When requested by the purchaser and agreed at the time of acceptance of the order. 0,2 % proof strength (R1,02) shall be determined in accordance with 9.2, and 0,2 % proof strength values shall be in accordance with the requirements specified in Tables I and 2.
NOTE For the definition of R2, see ISO 6892.
7.3 Brlnell hardness
When requested by the purchaser and agreed at the time of acceptance of the order, Brinell hardness (HBW)
shall be determined in accordance with 9.3. Evaluation of the test results may be based on the informative
hardness values listed in Tables 1 and 2.
NOTE For definition of HBW, see ISO 6506-1.
8.5 Test pieces for Brinell hardness test
The Banell hardness test may be carried out using a tensile test piece or a casting, provided that the material has not been affected by any prior testing.
If the test is to be carried out on a tensile test piece, then this shall be performed on one of the shanks, either on a prepared surface or on a cross-section.
If the test is to be carried out on one casting, then this shall be performed on one or several points, as defined and agreed between the manufacturer and the purchaser at the time of acceptance of the order.
9 Test methods
9.1 Tensile test
The tensile test for the determination of tensile strength and elongation shall be carried out in accordance with
ISO 6892, but using an unmachined tensile test piece produced in accordance with 8.3 and 8.4.
9.2 0,2 % Proof strength test
The determination of the 0,2 % proof strength shall be required only when agreed by the manufacturer and the purchaser by the time of the acceptance of the order. In this case, the test shall be carried out In accordance with ISO 6892, but using an unmachined tensile test piece produced in accordance with 8.3 and 8.4.
For the determination of proof strength, the rate of increase of stress in the elastic range shall not exceed 20 NImm2 per second. When the strain rate can be controlled, a rate of 1 %Imin shall be set and maintained throughout the test so that 1 % strain is reached between 30 s and 60 s.
9.3 Brinell hardness test
Determination of the Brinell hardness shall be required only when agreed by the manufacturer and the purchaser by the time of acceptance of the order.
In this case, the test shall be carried out in accordance with ISO 6506-1, preferably with the largest compatible ball diameter in line with this International Standard.
If the test is performed on one or several points on a casting, the result can be obtained from a single determination or from a statistical method.AS 1832-2007 pdf free download.