Tube Sheets, Brackets & Fittings
Steloy Foundries has established itself as one of only a handful of suppliers worldwide that can cast tube sheets up to 2 tons or 5 metres in length, allowing designers the freedom to maximise tubes in the ever decreasing spaces within the petrochemical industry.
Produced in accordance with a number of ASTM specifications, static castings for the petrochemical industry can be divided into two main applications: return bends and tube supports. Materials for return bends (and other components in the same grouping such as Y-pieces, elbows and plug headers) are listed in Table 5 of API 560. Tube supports, for which major materials are listed in Table 8 of API 560, include tube sheets, side wall supports, tube hangers and brackets.
Static castings are subject to the requirements indicated by the applicable specifications and also to specific quality assurance requirements prescribed by the customer. These may include radiographic and liquid penetrant examination, inspection of dimensional tolerances and surface finish, and mechanical and stress rupture testing.
Tube Supports
Tube supports include the following static components:
The alloys in which these components are produced have been indicated in the table below and also include a number of alloys not listed in API 560.
All these statically cast products are normally subjected to the requirements indicated by the applicable (Static) Cast Specifications, but also adhere to specific quality assurance requirements prescribed by the client, including:
Mechanical testing, if required, can be conducted at room temperature (as cast or after ageing) or at high-temperature. Stress rupture tests, as a quality assurance measure, are often also required (e.g. ASTM A447 type II).