| 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, 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
• Product types: Structural connectors, mounting bases, pivot connectors, support brackets, retaining components and customized building hardware
• Part weight: 2 g–550 g, subject to product geometry and approved drawing requirements
• Casting accuracy: Tolerance grade T4–CT7
• Surface roughness: Ra 1.6–Ra 6.3, depending on casting, machining and finishing requirements
• Minimum wall thickness: 2 mm standard; 1 mm available for limited local areas subject to process review
• Fillet requirements: Minimum outer radius ≥ 0.3 mm; minimum internal fillet ≥ 0.5 mm
• Machinable features: Mounting holes, threaded holes, pivot holes, locating surfaces, connection slots and critical structural interfaces
• Machining capability: CNC turning, milling, drilling, boring, tapping, grinding and deburring
• Heat treatment: Annealing, quenching, normalizing, carburizing and solution treatment according to material and strength requirements
• Surface treatment: Shot blasting, zinc coating, black oxide, painting, powder coating, passivation and customized corrosion-resistant finishing
• Inspection standard: Material composition, hole positions, thread specifications, critical connection dimensions, assembly fit and appearance inspected according to approved drawings
• Production support: Prototype development, trial orders, small-batch production and stable volume production available
• Applied standards: ASTM, BS, DIN, JIS, ISO and customer-specified technical requirements | Material | Carbon steel / alloy steel / stainless steel, customized according to approved drawings and structural load requirements |
