| Params | • Processing mode: Custom silica-sol investment casting according to customer-approved 2D drawings, 3D models or physical samples
• Material options: Carbon steel 1020, 1025 (WCB), 1030, 1040, 1045 and 1050; alloy steel 4140, 4150, 4340, 8620 and GS-25CrMo4; stainless steel 201, 303, 304, 316, 316L, 17-4PH, 410, 420 and 440C
• Casting accuracy: Tolerance grade T4–CT7, subject to pump housing geometry and approved drawing requirements
• Surface roughness: Ra 1.6–Ra 6.3, depending on casting geometry, machining and finishing requirements
• Minimum wall thickness: 2 mm standard; thinner local sections available subject to casting-process review
• Fillet requirements: Minimum outer radius ≥ 0.3 mm; minimum internal fillet ≥ 0.5 mm
• Machinable features: Flange faces, bearing seats, shaft holes, sealing surfaces, threaded ports, mounting holes and internal flow passages
• Machining capability: CNC turning, milling, drilling, boring, threading, grinding and precision sealing-surface machining
• Heat treatment: Annealing, quenching, normalizing, carburizing and solution treatment according to material and mechanical property requirements
• Surface treatment: Shot blasting, pickling, passivation, polishing, black oxide, painting, powder coating and customized surface finishing
• Inspection standard: Material composition, flange dimensions, bearing positions, concentricity, sealing surfaces, mounting holes and appearance inspected according to approved drawings
• Functional testing: Pressure testing or leakage testing can be arranged when specified by the customer
• Production support: Prototype development, trial orders and stable batch production available
• Applied standards: ASTM, ICI, BS, DIN, JIS, ISO and customer-specified technical requirements | Material | Carbon steel / alloy steel / stainless steel, customized according to approved drawings and service conditions |
