Metinox Overseas manufactures ASTM A860 WPHY 52 buttweld fittings from wrought high-yield carbon steel with a minimum yield of 52 ksi (358 MPa), Charpy impact qualification at -45°C, and NACE MR0175 sour-service compliance. EN 10204 3.1 certified, supplied from our ISO 9001:2015 facility in Mumbai.
Our WPHY 52 fittings are engineered from wrought high-yield carbon steel, specifically designed to withstand extreme pressures, low-temperature environments, and corrosive conditions in oil & gas, petrochemical, and power generation industries. We produce a comprehensive range of ASTM A860 Grade WPHY 52 fittings including seamless elbows, welded elbows, tees, reducers, caps, crosses, and stub ends in sizes ranging from 1/2" NB to 48" NB. Every fitting manufactured at our ISO 9001:2015 and PED 97/23/EC certified facility undergoes PMI, ultrasonic testing, radiography, Charpy V-notch impact testing, hydrostatic testing, and dimensional inspection to ensure 100% compliance with ASME B16.9, MSS SP-75, and international standards.
Our commitment to precision engineering, rapid delivery, and competitive pricing has made us the preferred WPHY 52 fittings supplier for projects across 80+ countries. Whether you need standard specifications or custom-fabricated solutions, Metinox Overseas delivers certified quality backed by full material traceability and third-party inspection from Lloyd's, BV, TÜV, DNV, and SGS.
Request a Quote now!Table of Contents
- What Are ASTM A860 WPHY 52 Pipe Fittings?
- Comprehensive Range of WPHY 52 Pipe Fittings
- ASTM A860 WPHY 52 Fittings Specifications
- ASTM A860 WPHY 52 Chemical Composition
- Mechanical Properties of WPHY 52 Fittings
- Standard Dimensions for WPHY 52 Elbow
- ASTM A860 WPHY 52 Pipe Fittings Price
- ASTM A860 WPHY 52 Equivalent Materials
- Our Manufacturing Excellence
- Applications & Industries
- Why Choose WPHY 52 Fittings?
- WPHY 52 vs Other Carbon Steel Grades
- Compliance & Quality Certifications
- Export-Quality Packaging
- Countries We Export To
- FAQs About WPHY 52 Fittings
What Are ASTM A860 WPHY 52 Pipe Fittings?
ASTM A860 WPHY 52 pipe fittings are high-yield carbon steel buttweld fittings manufactured from wrought material specifically designed for high-pressure and low-temperature service applications. The "WPHY" designation stands for "Wrought Pipe High Yield", indicating superior mechanical strength and toughness compared to standard carbon steel grades.
These fittings are predominantly used in critical pipeline systems where high tensile strength (minimum 66 ksi), excellent impact resistance, and reliable performance at temperatures as low as -45°C are required. The ASTM A860 standard covers carbon and low-alloy steel fittings for use in pressure piping systems, with WPHY 52 being one of the most specified grades in the oil & gas and petrochemical sectors.
Comprehensive Range of WPHY 52 Pipe Fittings
Metinox Overseas manufactures a complete portfolio of ASTM A860 WPHY 52 fittings to meet diverse piping requirements:
- 90° Elbows (Long Radius & Short Radius)
- 45° Elbows
- 180° Returns
- Equal Tees
- Reducing Tees
- Barred Tees – Pig-trap tees available as a standard product for pipeline pigging service, a commonly requested WPHY 52 fitting type in gas-transmission projects
- Crosses
- Concentric Reducers
- Eccentric Reducers
- Pipe Caps (Seamless & Welded)
- Stub Ends (Type A, B, C per MSS SP-43)
- Laterals
Manufacturing Types:
- Seamless (for high-pressure applications)
- Welded (for moderate-pressure systems)
- Fabricated (for custom dimensions)
ASTM A860 WPHY 52 Fittings Specifications
| Specification | Details |
|---|---|
| Standard | ASTM A860 / ASME SA860 |
| Grade | WPHY 52 |
| Size Range | 1/2" NB to 48" NB (DN15 to DN1200) |
| Schedule / Thickness | Sch 5s, 10s, 10, 20, 40, 60, 80, 100, 120, 140, 160, XXS |
| Dimensions Standard | ASME B16.9, ASME B16.28, MSS SP-75, MSS SP-43 |
| Manufacturing Type | Seamless / Welded / Fabricated |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D, 100mm, or Custom |
| End Connections | Beveled End (BE), Plain End (PE) |
| Surface Finish | Black, Galvanized, Shot Blasted, Epoxy Coated |
| Heat Treatment | Normalizing, quenching and tempering, or stress relieving – mandatory for all WPHY grades per ASTM A860 |
| Hardness | 235 HBW max (22 HRC max) per ASTM A860 |
| API 5L Equivalent Pipe Grade | X52 |
| Testing | Hydrostatic, Ultrasonic, Radiography, PMI, Charpy V-Notch, Dimensional |
| Certification | EN 10204 3.1, 3.2 |
Types of ASTM A860 WPHY 52 Fittings
Key Characteristics:
- High Yield Strength: Minimum 52 ksi (358 MPa)
- Excellent Low-Temperature Toughness: Charpy V-notch impact tested at -50°F (-45°C) per ASTM A860. Suitable for sub-arctic and cold-climate service to -45°C.
- Superior Weldability: Easy to fabricate and install
- Corrosion Resistant: Enhanced service life in aggressive environments
- Compliance: Meets ASME B16.9, MSS SP-75, ANSI B16.28 standards
ASTM A860 WPHY 52 Chemical Composition
The chemical composition is carefully controlled to ensure optimal mechanical properties, weldability, and corrosion resistance:
| Element | Composition (% by Weight) |
|---|---|
| Carbon (C) | 0.20 Max |
| Manganese (Mn) | 1.00 – 1.45 |
| Phosphorus (P) | 0.03 Max |
| Sulfur (S) | 0.03 Max |
| Silicon (Si) | 0.15 – 0.40 |
| Nickel (Ni) | 0.50 Max |
| Chromium (Cr) | 0.30 Max |
| Molybdenum (Mo) | 0.25 Max |
| Copper (Cu) | 0.35 Max |
| Titanium (Ti) | 0.05 Max |
| Vanadium (V) | 0.10 Max |
| Columbium (Cb) | 0.06 Max |
| Aluminum (Al) | 0.06 Max |
Note: The controlled carbon and manganese content provides excellent strength-to-weight ratio while maintaining superior weldability and ductility. The sum of Cu + Ni + Cr + Mo + V shall not exceed defined total elemental limits per ASTM A860 Table 1.
Mechanical Properties of WPHY 52 Fittings
| Property | Value | Test Method |
|---|---|---|
| Tensile Strength | 455–620 MPa (66–90 ksi) minimum | ASTM A370 |
| Yield Strength (0.2% Offset) | 358 MPa (52 ksi) minimum | ASTM A370 |
| Elongation in 2" | 23% minimum | ASTM A370 |
| Hardness | 235 HBW max (22 HRC max) | ASTM E10 (Brinell) |
| Impact Test (Charpy V-Notch) | 40 J min at -50°F (-45°C) | ASTM A370 |
| Service Temperature | -45°C to +400°C (indicative) | Per design code |
Why These Properties Matter:
- High Tensile Strength: Withstands internal pressures up to ANSI Class 2500
- Excellent Elongation: Prevents brittle failure under stress
- Low-Temperature Toughness: Maintains ductility in sub-arctic conditions with Charpy qualification at -45°C
- Weldability: Carbon equivalent ensures crack-free welds
- Hardness Control: Maximum 22 HRC ensures proper field fabrication and prevents brittleness
Standard Dimensions for WPHY 52 Elbow
| Size (NB) | Outside Diameter (mm) | Center to End (A) – 90° LR Elbow | Weight (kg) – Sch 40 |
|---|---|---|---|
| 1/2" | 21.3 | 38 | 0.05 |
| 3/4" | 26.7 | 38 | 0.08 |
| 1" | 33.4 | 38 | 0.13 |
| 1-1/2" | 48.3 | 57 | 0.26 |
| 2" | 60.3 | 76 | 0.50 |
| 3" | 88.9 | 114 | 1.20 |
| 4" | 114.3 | 152 | 2.10 |
| 6" | 168.3 | 229 | 5.80 |
| 8" | 219.1 | 305 | 11.50 |
| 10" | 273.0 | 381 | 19.80 |
| 12" | 323.9 | 457 | 30.50 |
| 16" | 406.4 | 610 | 58.00 |
| 20" | 508.0 | 762 | 105.00 |
| 24" | 609.6 | 914 | 165.00 |
Note: Dimensions for NPS 14 and above are per MSS SP-75. Complete dimensional charts for all sizes available on request from Metinox technical team.
ASTM A860 WPHY 52 Pipe Fittings Price
| Product Type | Approximate Price |
|---|---|
| ASTM A860 WPHY 52 Elbow | $8 – $120 Per Piece |
| ASTM A860 WPHY 52 Tee | $10 – $150 Per Piece |
| ASTM A860 WPHY 52 Reducer | $12 – $180 Per Piece |
| ASTM A860 WPHY 52 Pipe Cap | $6 – $90 Per Piece |
| ASTM A860 WPHY 52 Stub End | $15 – $200 Per Piece |
Prices may vary depending on size, wall thickness, schedule, manufacturing method, and quantity ordered.
ASTM A860 WPHY 52 Equivalent Materials
| Product Category | Equivalent Material / Standard | Notes |
|---|---|---|
| Pipe | API 5L Grade X52 | Same HSLA chemistry; pipe standard |
| Flanges | ASTM A694 F52 | Correct high-yield flange companion |
| Buttweld Fittings | ASTM A860 WPHY 52 (this spec) | Self-referencing; no forged equivalent |
| Low-temp Forged (where impact-tested) | ASTM A350 LF2 | Use only where selection is impact-toughness-driven, NOT yield-strength-driven |
| Valves | ASTM A216 WCB / WCC | Standard carbon steel valve bodies |
| Bolts | ASTM A193 Grade B7 | Standard alloy stud bolts |
| Nuts | ASTM A194 Grade 2H | Standard heavy hex nuts |
Important Note: ASTM A694 F52 flanges are the code-matched companion to WPHY 52 buttweld fittings on high-yield systems where A105 flanges are under-specified.
Our Manufacturing Excellence
Step 1: Raw Material Selection
We source certified mill plates and seamless pipes from reputed steel mills with full traceability and heat number documentation.
Step 2: Forming Process
- Hot Forming: For seamless elbows, tees, and reducers
- Cold Forming: For smaller sizes with precise dimensions
- Forging: For high-pressure stub ends and caps
Step 3: Heat Treatment
WPHY 52 is normalized or quenched and tempered to achieve 52 ksi yield with 22 HRC hardness cap; heat treatment records traceable to each heat number.
Step 4: Machining & Finishing
CNC machining for beveled ends, surface finishing, and dimensional accuracy.
Step 5: Quality Testing
- Positive Material Identification (PMI)
- Ultrasonic Testing (UT)
- Radiography Testing (RT)
- Charpy V-Notch Impact Testing at -50°F (-45°C)
- Hydrostatic Pressure Testing
- Dimensional Inspection
- Visual & Surface Inspection
Step 6: Marking & Packaging
Permanent marking as per standards and export-worthy packaging with VCI wrapping.
Applications & Industries ASTM A860 WPHY 52 Fittings
Primary Industries:
- Oil & Gas Exploration: Offshore platforms, subsea pipelines, flowlines
- Petrochemical Plants: Process piping, reactor connections, heat exchangers
- Power Generation: Boiler piping, steam distribution, condenser systems
- Chemical Processing: Acid handling, corrosive fluid transport
- Refineries: Crude oil processing, distillation units, cracking units
- Sub-arctic Pipeline Service: Cold-climate onshore and offshore pipelines where the Charpy qualification at -45°C provides code compliance for northern operating environments
- Marine & Shipbuilding: Offshore vessels, FPSOs, drilling rigs
- Mining & Mineral Processing: Slurry pipelines, tailings systems
Specific Applications:
- ✓ High-pressure transmission pipelines
- ✓ Sub-zero temperature service lines
- ✓ Offshore and onshore oil/gas gathering systems
- ✓ Process plant interconnecting piping
- ✓ Utility and distribution systems
- ✓ Heat exchanger connections
- ✓ Boiler external piping
- ✓ Water injection systems
Why Choose WPHY 52 Fittings?
Technical Advantages:
- Superior Strength-to-Weight Ratio: Reduces overall piping system weight
- Exceptional Impact Resistance: Prevents catastrophic failures with 40J Charpy qualification at -45°C
- Wide Temperature Range: From sub-arctic to high-temperature service
- Easy Fabrication: Excellent machinability and weldability
- Long Service Life: Enhanced corrosion and erosion resistance
Business Advantages:
- Competitive Pricing: Direct manufacturer pricing with no middlemen
- Fast Delivery: Large inventory + quick manufacturing turnaround
- Custom Solutions: Fabricated fittings for non-standard requirements
- Global Reach: Shipped to 80+ countries with full export compliance
- Technical Support: In-house engineering team for project assistance
Quality Advantages:
- ISO 9001:2015 Certified: Proven quality management systems
- 100% Traceable Material: Complete documentation and heat number tracking
- Third-Party Inspections: TPI services available (TÜV, Lloyd's, DNV, BV, SGS)
- Compliance: Meets NACE MR0175, ASME, API, and international standards
- Zero-Defect Policy: Multi-stage quality control with PMI, UT, RT, and Charpy testing
WPHY 52 vs Other Carbon Steel Grades
| Parameter | WPHY 52 | WPHY 60 | WPHY 65 | A234 WPB |
|---|---|---|---|---|
| Yield Strength (Min) | 52 ksi | 60 ksi | 65 ksi | 35 ksi |
| Tensile Strength (Min) | 66 ksi | 75 ksi | 77 ksi | 60 ksi |
| Low Temp Service | -45°C (-50°F) per ASTM A860 Charpy | -45°C (-50°F) per ASTM A860 Charpy | -45°C (-50°F) per ASTM A860 Charpy | -29°C |
| Carbon Content | 0.20% Max | 0.20% Max | 0.24% Max | 0.30% Max |
| Primary Application | High-pressure pipelines | Extra high-pressure systems | Arctic/offshore projects | General purpose piping |
| Relative Cost | Moderate | Higher | Highest | Lowest |
Conclusion: WPHY 52 offers the optimal balance of strength, toughness, cost-effectiveness, and low-temperature performance for most oil & gas applications. Charpy tested at -50°F (-45°C) per ASTM A860 — the correct code-compliance qualification for sub-arctic onshore and offshore WPHY 52 systems.
Compliance & Quality Certifications
Manufacturing Standards:
- ASTM A860 / ASME SA860
- ASME B16.9 (Factory-made Wrought Buttwelding Fittings)
- ASME B16.28 (Wrought Steel Buttwelding Short Radius Elbows)
- MSS SP-75 (Specification for High Test Wrought Welding Fittings)
- MSS SP-43 (Wrought Stainless Steel Butt-Welding Fittings)
Quality Certifications:
- ✓ ISO 9001:2015 (Quality Management System)
- ✓ ISO 14001:2015 (Environmental Management)
- ✓ ISO 45001:2018 (Occupational Health & Safety Management System)
- ✓ PED 2014/68/EU (Pressure Equipment Directive)
- ✓ AD 2000-Merkblatt W0 (German Pressure Vessel Code)
Testing & Inspection:
- EN 10204 3.1 & 3.2 Mill Test Certificates
- NACE MR0175 / ISO 15156 (Sour Service Compliance)
- API 5L / API 6A (Oil & Gas Industry Standards)
- ASME Section IX (Welding Qualification)
- Third-Party Inspection (TÜV, Lloyd's Register, DNV, BV, SGS)
Export-Quality Packaging
Standard Packaging:
- VCI (Volatile Corrosion Inhibitor) wrapping for rust protection
- Wooden boxes or wooden crates for secure shipment
- End caps on all fittings to protect beveled edges
- Color coding and stencil marking as per specifications
- Export-worthy pallets with strapping and stretch film
Marking Details:
Each fitting is permanently marked with:
- Manufacturer name/logo (Metinox Overseas)
- ASTM A860 WPHY 52
- Size and schedule
- Heat number
- Country of origin
Delivery Timeline:
- Ex-Stock Items: 2–5 working days
- Standard Manufacturing: 15–20 working days
- Custom/Fabricated Orders: 25–35 working days
- Express Production: Available on request
Shipping Options:
- Air Freight (for urgent orders)
- Sea Freight (FCL/LCL)
- Courier Services (for samples)
- Door-to-door delivery available
FAQs About WPHY 52 Fittings
WPHY 52 has significantly higher yield strength (52 ksi vs 35 ksi) and better low-temperature toughness (-45°C vs -29°C) compared to standard WPB grade, making it suitable for high-pressure and cold-climate applications. WPHY 52 is Charpy impact tested at -50°F (-45°C), while WPB has no mandatory impact testing requirement.
Yes, when manufactured and tested according to NACE MR0175/ISO 15156 requirements. Metinox Overseas can provide NACE-compliant WPHY 52 fittings with appropriate documentation and material traceability.
We manufacture fittings up to 48" NB (DN1200) in standard range. Larger sizes can be custom-fabricated from certified plates with full material traceability and EN 10204 3.1/3.2 certification.
Seamless fittings offer higher pressure ratings and are preferred for critical high-pressure applications. Welded fittings are cost-effective and suitable for moderate pressure systems with proper quality control including radiography and hydrostatic testing.
Absolutely. We specialize in custom radius elbows (3D, 5D, 6D, 8D, 10D, or any specific radius) and non-standard dimensions as per project requirements.
Ex-stock items ship within 2–5 days. Standard manufacturing takes 15–20 days, and custom fabricated orders require 25–35 days depending on complexity.
ASTM A860 WPHY 52 fittings are the code-compliant buttweld fitting companion to API 5L Grade X52 pipe. Both share a minimum yield strength of 52 ksi (358 MPa) and similar HSLA chemistry. The governing standard for the fitting is ASTM A860 / MSS SP-75; the governing standard for the mating pipe is API 5L.
Countries We Export To
Asia Pacific: Singapore, Malaysia, Indonesia, Thailand, Vietnam, Philippines, South Korea, Japan, China, Hong Kong, Taiwan, Australia, New Zealand
Middle East: UAE, Saudi Arabia, Qatar, Oman, Bahrain, Kuwait, Iraq, Jordan, Turkey, Egypt
Europe: UK, Germany, France, Italy, Spain, Netherlands, Belgium, Poland, Czech Republic, Romania, Greece, Norway, Sweden, Denmark
Americas: USA, Canada, Mexico, Brazil, Argentina, Chile, Colombia, Peru, Venezuela
Africa: South Africa, Nigeria, Kenya, Ghana, Angola, Algeria, Morocco, Egypt
Major Cities We Supply To:
Mumbai, Delhi, Dubai, Singapore, Houston, London, Sydney, Shanghai, Tokyo, Seoul, Bangkok, Jakarta, Kuala Lumpur, Riyadh, Abu Dhabi, New York, Los Angeles, Calgary, Toronto, Melbourne, Perth, and 200+ more cities globally.
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