Product Overview
CAST-STRUC-PRO-350 is a high-performance precision structural casting engineered for mission-critical load-bearing applications in aerospace, energy, and heavy industrial equipment. Manufactured via investment casting from premium AISI 4140 alloy steel, this component delivers exceptional strength-to-weight ratio, fatigue resistance, and dimensional fidelity—achieving tight ±0.3mm tolerance per ISO 8062-CT7 standards. Unlike conventional sand or centrifugal castings, CAST-STRUC-PRO-350 leverages ceramic shell precision molding to produce complex geometries with smooth surface finishes (Ra ≤ 3.2 µm), minimal machining allowances, and superior metallurgical consistency across batch production.
Designed for B2B OEMs and Tier-1 suppliers requiring certified structural integrity, each casting undergoes full material traceability (MTR), non-destructive testing (NDT), and dimensional validation using CMM. Its optimized internal grain structure and controlled heat treatment (quenched & tempered to 28–32 HRC) ensure reliable performance under dynamic stress, thermal cycling, and corrosive environments.
Key Features
- Precision investment casting process for intricate net-shape geometry
- AISI 4140 alloy steel with guaranteed tensile strength ≥ 930 MPa
- Dimensional accuracy: ±0.3mm tolerance class per ISO 8062-CT7
- Full compliance with ASTM A322/A29 and AMS 2759/1 specifications
- Surface finish: Ra ≤ 3.2 µm as-cast; optional shot peening or passivation
- 100% NDT certified (UT + MPI) and CMM-verified dimensional report included
Technical Specifications
| Parameter |
Value |
| Material Grade |
AISI 4140 (UNS G41400) |
| Manufacturing Process |
Investment Casting (Lost-Wax) |
| Tolerance Class |
ISO 8062-CT7 (±0.3mm) |
| Tensile Strength |
≥ 930 MPa |
| Yield Strength (0.2% offset) |
≥ 780 MPa |
| Elongation (50mm) |
≥ 14% |
| Hardness |
28–32 HRC (after Q&T) |
| Surface Roughness (as-cast) |
Ra ≤ 3.2 µm |
| Max. Part Weight |
35 kg |
| Max. Dimension |
850 × 520 × 310 mm |
| Heat Treatment |
Quenched & Tempered (Oil-cooled) |
| Standard Compliance |
ASTM A322, AMS 2759/1, ISO 8062 |
Applications
CAST-STRUC-PRO-350 is widely deployed in structural frameworks demanding high reliability and repeatability—including aircraft landing gear brackets, turbine support housings, hydraulic manifold blocks, robotic arm joints, and offshore oil rig connectors. As a premier solution among precision castings, it enables weight reduction without compromising safety margins—making it ideal for customers sourcing ±0.3mm structural casting components where failure is not an option. Its compatibility with post-casting CNC machining and surface coating (e.g., cadmium plating, zinc-nickel) further extends its utility across defense, renewable energy, and rail transportation sectors.
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