Section 1: Product Overview
Haynes pipe fittings are cobalt-nickel-chromium alloy fittings specifically engineered for extreme high-temperature applications with exceptional oxidation resistance and thermal stability. Our Haynes fittings meet AMS 5605, AMS 5608, and ASME B16.9 standards, making them the premier choice for aerospace, gas turbines, industrial furnaces, and thermal processing equipment.
As a leading Haynes fitting manufacturer, we provide Haynes 188, 230, and 282 grades in various fitting types.
Section 2: Key Features
- Excellent high-temperature oxidation resistance up to 1200°C
- Outstanding thermal fatigue resistance
- Superior creep rupture strength
- Good hot corrosion resistance
- Excellent fabricability and weldability
- AMS certified manufacturing process
- Complete material test reports (MTR) provided
Section 3: Available Grades Overview
| Grade | AMS No. | Key Feature | Main Applications |
|---|
| Haynes 188 | 5605 | High temp stability | Combustion liners, gas turbines |
| Haynes 230 | 5608 | Highest oxidation | Furnace hardware |
| Haynes 282 | 5728 | Precipitation hardening | Turbine discs, blades |
Section 4: Chemical Composition (All Grades)
| Element | 188 | 230 | 282 |
|---|
| Ni (Nickel) | 20.0-24.0 | Balance | Balance |
| Co (Cobalt) | Balance | 5.0 max | 10.0-20.0 |
| Cr (Chromium) | 20.0-24.0 | 20.0-24.0 | 19.0-21.0 |
| W (Tungsten) | 13.0-16.0 | 12.0-15.0 | – |
| Mo (Molybdenum) | – | 1.0-3.0 | 8.0-10.0 |
| Fe (Iron) | ≤3.0 | ≤3.0 | ≤1.5 |
| C (Carbon) | 0.05-0.15 | ≤0.10 | 0.05-0.10 |
Section 5: Mechanical Properties (All Grades)
| Property | 188 | 230 | 282 |
|---|
| Tensile Strength | ≥785 MPa | ≥690 MPa | ≥895 MPa |
| Yield Strength | ≥310 MPa | ≥275 MPa | ≥420 MPa |
| Elongation | ≥35% | ≥40% | ≥20% |
Section 6: Fitting Types & Specifications
Available Fitting Types
| Type | Description | Angle/Type |
|---|
| Elbow | Pipe bend | 90°, 45°, 180° |
| Tee | Branch connection | Equal, Reducing |
| Reducer | Size change | Concentric, Eccentric |
| Cap | Pipe end closure | – |
Size Range
| Parameter | Range |
|---|
| Diameter | 1/2″ (DN15) – 24″ (DN600) |
| Wall Thickness | Sch5s, Sch10s, Sch40s, Sch80s, Sch160 |
Section 7: Applications by Grade
| Grade | Recommended Applications |
|---|
| 188 | Gas turbine combustion liners, afterburner components, heat exchangers |
| 230 | Furnace furniture, catalyst supports, heat treating trays |
| 282 | Turbine discs, blades, industrial furnace components |
Section 8: Why Choose Us
- ISO 9001:2015 certified manufacturer
- Mill test certificates provided
- Competitive pricing direct from factory
- Quick lead times – typically 2-3 weeks
- Full fitting types – Elbows, Tees, Reducers, Caps
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