Energy & Power
Energy & Power sector castings — SICAST Sand Steel Casting portfolio.
Energy & Power castings
Gas Turbine
4 items
Energy & Power
Bearing housing & oil seal castings (gas turbine front & rear)
Cast steel A216 WCB; Aluminium (auxiliary / accessory frames)
Oil system integrity critical. IP55 sealed design. Oil contamination limits per OEM spec.
Energy & Power
Combustor transition piece (cast liner components)
Nickel-based cast alloy (IN718 / IN738 for hot section) – investment cast
⚠ CASTING NOTE: hot gas path parts are precision investment cast nickel alloys – distinct from sand/steel casting. DS and SX blades are OEM-proprietary. Aftermarket repair by HVOF/diffusion brazing.
Energy & Power
Compressor casing sections (axial flow compressor)
Cast steel ASTM A356 Gr8 / A217 C12A (Cr9Mo1) for high-temp; Ti alloys not cast – forged
⚠ FORGING NOTE: rotating blades & discs are forged not cast. Casings are cast. Ti used only as forgings. Cr9Mo1 for high-temp compressor stages.
Energy & Power
Turbine exhaust collector / diffuser housing castings
Cast steel A217 WC9 / HH grade SS (austenitic heat-resistant)
High temperature up to 700°C exhaust. Scale-resistant alloy required. Weld-repairability per applicable procedure.
Heat Recovery & Boiler
4 items
Energy & Power
Boiler feed pump casing (high pressure BFP)
Carbon Steel ASTM A216 WCB (low pressure); Alloy Steel A217 WC6 (HP boiler feed service)
API 610 (OH2 / BB3 type). ASME B73 / EN standards. Inlet: suction conditions up to 180°C. Wall thickness per ASME VIII / EN 13445.
Energy & Power
Condenser waterbox & hotwell castings (steam condensers)
Cast Steel A216 WCB; Ductile Iron GJS-400-18; Naval Brass / CuNi (seawater cooled)
Seawater-cooled condenser in GCC: CuNi 90/10 or titanium tube plates (machined not cast). Hotwell: low carbon steel with FBE lining.
Energy & Power
Economiser / superheater header end-cap castings
Carbon Steel ASTM A216 WCB; Cr-Mo Steel A217 WC6
ASME Section I (power boilers) or EN 12952. Weld end preparation per ASME B16.25. Full MTC EN 10204 3.2.
Energy & Power
Turbine bypass valve body / steam stop valve body
Cast steel ASTM A217 WC9 (Cr-Mo for HP steam); CF8M SS (wet steam stages)
ASME B16.34. EN ISO 15761 (steel valves). Stellite or SS hard-facing on seats. PWHT mandatory for WC9.
Power Generation Auxiliaries
4 items
Energy & Power
Cooling water pump casing (CWP – circulating water system)
Ductile Iron GJS-500-7 (fresh / brackish water); Super Duplex A890 Gr5A (seawater)
API 610 or AWWA. GCC seawater cooling towers: super duplex mandatory. Internal rubber lining or FBE for DI in seawater service.
Energy & Power
Diesel generator / emergency generator housing castings
Grey Cast Iron GJL-250 (crankcase / cylinder block); Cast Steel (support frames)
ISO 3046 (diesel gen sets). GCI cylinder block: EN-GJL-250 with pearlitic microstructure. Machining tolerances for bore and crankshaft journals critical.
Energy & Power
Transformer oil pump / cooler housing castings
Cast Steel A216 WCB; Aluminium alloy (air-cooled ancillaries)
Oil compatibility (mineral oil / synthetic ester). Sealing surfaces to IEC 60296.
Energy & Power
Valve actuator & gearbox housings (power station duty)
Cast Steel A216 WCB; SG Iron GJS-500-7; Aluminium (small actuators)
AUMA / Rotork actuator standards. Weatherproof IP67 minimum for outdoor power station use.
Renewable Energy
3 items
Energy & Power
Wind turbine gearbox housing (main gearbox)
EN-GJS-500-7; EN-GJS-400-18 LT (cold climate)
Gear bore alignment critical for planetary / helical gear sets. Oil tightness test mandatory. Vibration analysis mounting surfaces machined to Ra <3.2µm.
Energy & Power
Wind turbine hub casting
EN-GJS-400-18 LT; EN-GJS-350-22 LT (offshore / cold climate)
Very large complex casting – solidification simulation (MAGMA / ProCAST) essential. Blade pitch bearing seats machined after casting. EN 16124 quality class.
Energy & Power
Wind turbine main frame / machine head frame (nacelle bedplate)
EN-GJS-400-18 LT (low-temperature ductile iron, −20°C impact); GJS-350-22 LT for arctic
EN 1563 / EN 16124. Wall thickness up to 100mm+ – porosity control critical. Ferrite content >80% (LT grades). Surface: epoxy primer + polyurethane topcoat (ISO 12944 C4/C5-M).
Steam Turbine
5 items
Energy & Power
Exhaust hood / diffuser castings (LP turbine exhaust)
Cast steel A216 WCB / A27 Gr70-40; Cast Stainless CF8 (for marine)
Large castings (often 2–4 tonne+). Surface finish on diffuser critical. Welded assembly of split sections common.
Energy & Power
Governor / control valve body (steam admission valves)
Cast steel ASTM A217 WC6 / WC9; SS CF8M for erosive wet steam
ASME B16.34 valve rating. Stellite hard-facing on seating faces. EN 10204 3.2 cert.
Energy & Power
Steam turbine casing (inner / outer, HP & LP cylinders)
Cr-Mo cast steel: ASTM A217 WC9 (Cr2.25Mo1) / WC6 (Cr1.25Mo0.5); ASTM A356 Gr10 for large LP casings
ASME B31.1 / EN 13480. Cr-Mo grades: PWHT mandatory. High-temp tensile & creep rupture data per EN 10302. IBR (Indian) / TÜV / CE marking as applicable. Operating temperature up to 565°C HP.
Energy & Power
Turbine bearing housing (journal & thrust bearing pedestals)
Cast steel A216 WCB; Grey Cast Iron GJL-250 (lower speed auxiliaries)
Oil film journal bearing – surface finish Ra <1.6µm on bores. Alignment bores: H7/H6 tolerance.
Energy & Power
Turbine nozzle / diaphragm castings (fixed vane carrier)
ASTM A217 WC9 / CA15 (13Cr SS) for wet steam stages
Profile accuracy critical for thermodynamic performance. CA15 for corrosion resistance in wet steam LP stages.
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