Products

Fabrications

Steloy Castings operates in conjunction with competent partners to supply the required assemblies. Fabrications currently include different configurations of heater coils (reformer, cracking, catalyst) and harps and collectors, using the cast components (static castings and centrifugally cast tubes/pipes) produced by Steloy Castings.

Related wrought components (as indicated in Tables 4 and 6 of API 560) are acquired from approved suppliers.

Machining of cast components is conducted by Steloy Castings. This includes pull boring of cast tube inner surfaces, machining of outer surfaces of cast tube, and machining of weld preps on static castings as well as cast tube.

The following specifications and standards are applicable to the fabrication and testing of fabricated assemblies:

API 560

Fired heaters for general refinery service

API 530

Calculation of heater tube thickness in petroleum refineries

ANSI/AWS

D1.1 Structural welding code

ASME B31.3

Chemical plant and petroleum refinery piping

ASME Section I, II, VIII

Boiler and pressure vessel code

ASME Section V

Non destructive examination

ASME Section IX

Welding and brazing qualifications

MSS SP53

Quality standard for steel castings and forgings for valves, flanges and fittings and other piping components

Magnetic particle examination method

MSS SP55

Quality standard for steel castings for valves, flanges and fittings and other piping components visual method

MSS SP93

Quality standard for steel castings and forgings for valves, flanges and fittings and other piping components. Liquid penetrant examination method

For welding

Since API 560 Section 13 indicates specific norms pertaining to shop fabrication, coil fabrication (in particular) is conducted in accordance with the following:

Coils are fabricated in accordance with the applicable provisions of ASME B31.3 for piping, Chapter V

Welding processes applied will include one or more of the following:

– SMAW

– GTAW (manual or automatic)

– GMAW (spray transfer)

– FCAW (with external shielding gas)

– General conditions listed in API 560   section 13.3

For inspection examination and testing

– Weld inspection and examination: API 560 section 14.2

– Pressure testing: API 560 section 14.5.1

– Positive Materials identification (PMI): API 560 section 14.5.4

For preparation for shipment

API 560 section 13.6