ASTM A860 WPHY 80
ASTM A860 WPHY 80 Pipe Fittings
ASTM A860 WPHY 80 Pipe Fittings are high-strength, low-alloy steel fittings designed for high-pressure applications in industries such as oil, gas, and petrochemical processing. “WPHY” stands for Wrought Pipe High Yield, signifying their superior mechanical strength and toughness. These fittings are used for connecting seamless and welded pipes in demanding environments where high pressure and temperature resistance are critical.
Emirerri Steel supplies ASTM A860 WPHY 80 Pipe Fittings that meet international quality standards, ensuring excellent durability, weldability, and performance under severe conditions.
Key Features
High yield strength (minimum 80,000 psi)
Superior impact resistance at low temperatures
Excellent corrosion and oxidation resistance
Good weldability and formability
Suitable for both seamless and welded pipelines
Long service life in high-pressure applications
Specification
| Specification | Details |
|---|---|
| Standard | ASTM A860 / ASME SA860 |
| Grade | WPHY 80 |
| Material | High Strength Low Alloy Steel |
| Manufacturing Type | Seamless, Welded, Fabricated |
| Size Range | ½” to 48” (DN15 to DN1200) |
| Pressure Rating | SCH 10 to SCH 160, XXS |
| Form | Elbow, Tee, Reducer, Cap, Cross, Stub End |
| Connection Type | Butt Weld, Socket Weld |
| Surface Finish | Black, Galvanized, Anti-rust Coating |
| Testing | Hydrostatic, Non-Destructive, Impact, Tensile |
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM | A860 WPHY 80 |
| ASME | SA860 WPHY 80 |
| MSS-SP | MSS SP-75 |
| API | API 5L X80 (Comparable Mechanical Properties) |
Available Sizes
Seamless fittings: up to 24” NB
Welded fittings: up to 48” NB
Wall thickness: SCH 10 to SCH 160, XXS
Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.20 |
| Manganese (Mn) | 1.00 – 1.70 |
| Phosphorus (P) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.015 |
| Silicon (Si) | 0.15 – 0.40 |
| Nickel (Ni) | ≤ 0.50 |
| Chromium (Cr) | ≤ 0.30 |
| Molybdenum (Mo) | ≤ 0.25 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 90,000 psi (min) |
| Yield Strength | 80,000 psi (min) |
| Elongation | 22% (min) |
| Hardness | 235 HB (max) |
| Impact Energy (Charpy V-Notch) | As per ASTM A370 |
Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1425 – 1540°C |
| Thermal Conductivity | 52 W/m·K |
| Modulus of Elasticity | 200 GPa |
Types of ASTM A860 WPHY 80 Pipe Fittings
Elbow (45°, 90°, 180°)
Equal & Reducing Tee
Concentric & Eccentric Reducer
Pipe Cap & Stub End
Cross (Equal & Unequal)
Bends & Laterals
Corrosion Resistance
ASTM A860 WPHY 80 fittings exhibit excellent resistance to general corrosion and stress corrosion cracking. When coated or painted properly, they can withstand harsh environmental and industrial conditions, making them suitable for offshore and high-pressure systems.
Heat Resistance
These fittings can handle moderately high temperatures due to their strong metallurgical structure. They maintain mechanical integrity even when exposed to temperature variations in oil and gas pipelines.
Heat Treatment
ASTM A860 WPHY 80 fittings are typically normalized, quenched, and tempered to achieve the desired mechanical strength and toughness. This heat treatment process ensures improved grain structure and resistance to impact stress.
Welding
WPHY 80 fittings can be welded using standard welding procedures, including MIG, TIG, and SAW methods. Preheating and post-weld heat treatment (PWHT) are recommended to prevent cracking and ensure high weld integrity.
Fabrication
The fittings can be fabricated through hot forming or cold forming processes, depending on design requirements. Proper handling during fabrication ensures dimensional accuracy and structural strength.
Applications
Oil and Gas Pipeline Systems
Petrochemical and Refinery Industries
Offshore Drilling Platforms
Power Generation Plants
High-Pressure Transmission Lines
Hydraulic and Steam Systems