Case of austenitic manganese steel castings

9.1 castings, must be cast accurately in accordance with the model or drawings to work provided by the purchaser or mutually agreed upon with the addition of these letters] numbers and marks that can be specified.
9.2 the purchaser must specify the tolerances on all important dimensions. On other dimensions, tolerances specified in IS 4897 are applicable.

NOTE – For the sake of information, it is indicated that, to ensure a proper fit, it is often necessary to maintain the tolerances on the dimensions exiernal on the negative side and the internal dimensions on the positive side in the case of austenitic manganese steel castings.

The elements not specified in table 1 should not normally be added to steel and all reasonable precautions must be taken to avoid contamination of scrap metal, etc., to keep them as low as possible. 8.4.2 analysis and reporting of the analysis in the test for residual elements certificate should be made only to the specified (‘ by the buyer in the investigation and order.) However, c [~ e manufacturer must ensure that the residual elements are within the limits, when these limits are set by the buyer in the investigation and the agenda. 9 manufacture and arrival


Advantages of steel castings

1. Wider Design Flexibility

This form features the maximized free selection upon shapes and sizes of these kind castings, especially some complicated shapes and hollow forms. Furthermore, steel castings can be produced, depending on the unique crafts of core castings. Besides that, it can be easily molded, reshaped and made into finished products per corresponding drawings quickly.

2. Good Flexibility and Variability of Metallurgical Manufacture

For it, you can select different chemical compositions and organizational structures to meet requirements of different projects. Different heat treatment processes can be applied through its mechanical properties and these properties can be used in great scope for upgrading its welding capacity and applicability.

3. Improved Whole Structure Strength

Because of its high reliability, exclusive design for reducing weight and short delivery time, the competitive advantages on price and economy will be improved.

4. Large-scale Weight Variation

Generally speaking, one small size steel castings is only 10 grams, but one large size one is likely to reach tens or hundreds of tons.

Compared with forged steel components:

The mechanical properties of one steel castings, which are located in different directions, have few change. So the point has more advantage than forged steel. Thus, designers can adopt steel castings to make those components with complicated shapes and non stress concentrations by making use of the above advantages.

Nevertheless, the performances of vibration absorption, wear resistance and maneuvering in steel castings are inferior to the ones of iron castings. And the costs are much higher than the ones of iron castings.