ASTM A860 WPHY 60 Pipe Fittings | MSS SP75 WPHY 60 Elbow, Tee, Reducer
What Are ASTM A860 WPHY 60 Pipe Fittings?
ASTM A860 WPHY 60 pipe fittings are high-strength wrought steel butt-welding fittings designed for high-pressure oil and gas transmission pipelines. These fittings are manufactured according to ASTM A860 and MSS SP 75 standards, with dimensions typically conforming to ASME B16.9 and ASME B16.28.
WPHY stands for Wrought Pipe High Yield, indicating that the fittings provide higher yield strength compared with standard carbon steel pipe fittings. Grade WPHY 60 is commonly used in pipeline systems where high strength, durability, and reliable performance are required.
ASTM A860 WPHY 60 pipe fittings are frequently used together with:
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API 5L X60 line pipes
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ASTM A694 F60 flanges
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High-strength pipeline components
These fittings are widely used in oil and gas transmission systems, compressor stations, and petrochemical pipelines.
ASTM A860 WPHY 60 Pipe Fittings Specifications
| Item | Specification |
|---|---|
| Standard | ASTM A860 / MSS SP75 |
| Grade | WPHY 60 |
| Product Type | Butt Weld Pipe Fittings |
| Manufacturing | Seamless / Welded / Fabricated |
| Dimensional Standard | ASME B16.9 / ASME B16.28 |
| Size Range | NPS 1/2″ – 48″ |
| Wall Thickness | SCH 10 – SCH XXS |
| Inspection | Third Party Inspection Available |
| Certification | EN 10204 3.1 MTC |
Types of ASTM A860 WPHY 60 Pipe Fittings
ASTM A860 WPHY 60 fittings include a full range of butt-weld fittings used in pipeline construction.
WPHY 60 Elbow
ASTM A860 WPHY 60 elbows are used to change the flow direction of pipelines. Common configurations include:
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90° elbow
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45° elbow
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Long radius elbow (LR)
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Short radius elbow (SR)
These elbows provide excellent mechanical strength and fatigue resistance for high-pressure pipeline systems.
WPHY 60 Tee
ASTM A860 WPHY 60 tees are used to branch pipelines into two directions. They are commonly installed in oil and gas pipelines to distribute fluid flow.
Types include:
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Straight tee
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Reducing tee
WPHY 60 Reducer
Reducers are used to connect pipes of different diameters.
Two main types are:
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Concentric reducer
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Eccentric reducer
ASTM A860 WPHY 60 reducers provide smooth flow transition and maintain pipeline pressure stability.
WPHY 60 Pipe Cap
Pipe caps are used to close the end of pipelines and are often used in pressure testing and pipeline isolation.
ASTM A860 WPHY 60 Chemical Composition
The chemical composition of ASTM A860 WPHY 60 fittings is strictly controlled to ensure high strength and weldability.
| Element | Composition (%) |
|---|---|
| Carbon | 0.20 max |
| Manganese | 1.00 – 1.45 |
| Phosphorus | 0.030 max |
| Sulfur | 0.010 max |
| Silicon | 0.15 – 0.40 |
| Nickel | 0.50 max |
| Chromium | 0.30 max |
| Molybdenum | 0.25 max |
Mechanical Properties of ASTM A860 WPHY 60
ASTM A860 WPHY 60 pipe fittings must meet the following mechanical requirements.
| Property | Requirement |
|---|---|
| Yield Strength | ≥ 415 MPa |
| Tensile Strength | ≥ 515 MPa |
| Impact Test | −46°C |
| Hardness | ≤ 22 HRC |
These properties ensure reliable performance in high-pressure and low-temperature pipeline environments.
Manufacturing Process
ASTM A860 WPHY 60 fittings are manufactured using controlled processes to ensure structural integrity.
Typical manufacturing steps include:
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Raw material inspection
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Pipe forming and shaping
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Welding or seamless forming
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Heat treatment (normalizing or quenching and tempering)
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Machining and beveling
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Dimensional inspection
All fittings are heat treated according to ASTM A960/A960M requirements.
Heat Treatment of ASTM A860 WPHY 60 Fittings
ASTM A860 WPHY42, 46, 52, 56, 60, 65 and 70 all fittings shall be heat treated. Fittings that formed above transformed temperature or made by weldings, shall be cooled down to critical temperature before heat treatment. The methods including normalizing, quenching, tempering or stress relieved under the specification of ASTM A960/960M.
ASTM A860 WPHY 60 Hardness Requirements
Fittings under ASTM A860 shall have a maximum hardness of 22 HRC (235 HBW).
Applications of ASTM A860 WPHY 60 Pipe Fittings
ASTM A860 WPHY 60 fittings are widely used in high-pressure pipeline systems.
Typical applications include:
Oil and Gas Pipelines
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Long distance transmission pipelines
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Offshore pipeline systems
Natural Gas Distribution
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Compressor stations
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Metering and regulating stations
Petrochemical Industry
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Refinery pipeline systems
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Process piping networks
Energy and Power Plants
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High-pressure pipeline connections
Marking and Packaging
ASTM A860 WPHY 60 pipe fittings are supplied with standard markings including:
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Material grade
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Standard specification
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Size and wall thickness
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Heat number
Packaging options include:
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Wooden cases (fumigation-free)
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Steel pallets
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Custom export packaging
How to Order ASTM A860 WPHY 60 Pipe Fittings
Typical ordering examples:
Example 1
ASTM A860 WPHY 60 Elbow
90 Degree LR
ASME B16.9
14″ SCH STD
Example 2
ASTM A860 WPHY 60 Reducing Tee
ASME B16.9
DN300 × DN100
SCH STD
Related Products
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ASTM A694 F60 Flanges
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API 5L X60 Line Pipe
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ASTM A860 WPHY 65 Pipe Fittings
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ASTM A234 WPB Pipe Fittings
FAQ – ASTM A860 WPHY 60 Pipe Fittings
What is ASTM A860 WPHY 60 used for?
ASTM A860 WPHY 60 pipe fittings are primarily used in high-pressure oil and gas transmission pipelines and natural gas distribution systems.
What does WPHY mean?
WPHY stands for Wrought Pipe High Yield, indicating pipe fittings manufactured from high-strength steel with higher yield strength.
What is the difference between WPHY 60 and WPHY 65?
WPHY 65 pipe fittings have higher yield strength than WPHY 60 and are typically used in higher pressure pipeline systems.
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