Investment Casting Threaded Elbow
What is an Investment Casting Threaded Elbow?
A Threaded Elbow is a precision-machined pipe fitting cast using the investment casting process, designed to change the direction of flow in a pipeline—typically at 90° or 45° angles. These elbows come with internal (female) threads and are used in piping systems where welding is not feasible or where disassembly may be required.
Ideal for sanitary, marine, food-grade, and compact industrial systems, investment cast threaded elbows are known for their smooth surface finish, leak resistance, and tight dimensional tolerances.
Key Features
- Precision Casting – Clean, accurate geometry with minimal machining.
- Directional Flow Control – Available in 90° and 45° angles.
- Threaded Female Ends – Enables quick, leak-proof, non-welded connections.
- Corrosion Resistant Materials – Ideal for marine and chemical fluid handling.
- Manufactured to Global Standards – Compliant with ASME, ISO, and DIN.
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Details |
|---|---|
| Sizes | ⅛" to 4" (DN6 – DN100) |
| Thread Types | NPT, BSP, BSPT, ISO Metric |
| Angle Options | 90° and 45° |
| Material Options | SS 304, SS 316, CF8, CF8M, Duplex |
| Standards | ASME B16.11, ISO 4144, MSS-SP-95 |
| Manufacturing | Investment Casting, CNC Finished |
| Property | Typical Value |
|---|---|
| Tensile Strength | 485 – 750 MPa |
| Yield Strength | 205 – 450 MPa |
| Elongation | 20% – 30% |
| Hardness | 125 – 250 HB |
| Temperature Range | -46°C to +600°C |
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 (for 316/CF8M) |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
| Standard | Equivalent Grades |
|---|---|
| ASTM | A351 CF8 / CF8M, A743 / A744 |
| ASME | B16.11 |
| MSS-SP | SP-95 |
| DIN | 2950 / 2955 |
| ISO | ISO 4144 / ISO 8062 |
| Elbow Type | Size (inches) | Weight per 100 pcs (kg) |
|---|---|---|
| 90° Threaded Elbow | 1" | 12.80 |
| 90° Threaded Elbow | 2" | 19.50 |
| 45° Threaded Elbow | 1" | 10.10 |
Applications of Investment Casting Threaded Elbows
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What’s the advantage of using a threaded elbow over a welded elbow?
Threaded elbows are easy to install and dismantle without welding, making them ideal for modular systems or frequent maintenance.
Do you provide both 90° and 45° elbows?
Yes. We offer both angles in various sizes and thread types.
Are these elbows suitable for corrosive environments?
Absolutely. Stainless steel and duplex options offer exceptional corrosion resistance.
Can elbows be supplied with pressure and quality certificates?
Yes. We provide MTCs, third-party inspections, and test reports on request.
