Quick Product Summary for Buyers and Engineers#
If you are comparing forging steel tubing hangers and forged steel casing hangers, this page gives a direct answer first: Jiangsu Liangyi make wellhead hangers in custom materials for onshore, offshore, HPHT, sour service, geothermal and low-temperature applications. We offer a full range of service incluing in-house melting, forging, heat treatment, machining and inspection. And all of our products meet API 6A .
Forged Steel Tubing Hangers
- Nominal size: 2-3/8” to 4-1/2”
- Working pressure: 3000 Psi to 15000 Psi
- Mandrel-type design with T-seal configuration
- Suitable for intelligent completions and cable penetrations
Forged Steel Casing Hangers
- Nominal size: 4-1/2” to 30”
- Working pressure: 2000 Psi to 20000 Psi
- PSL1 to PSL4 and multiple material classes available
- Designed for heavy loads, sealing integrity and long service life
Materials & Service Conditions
Carbon steel, alloy steel, stainless steel, duplex/super duplex stainless steel and nickel-based alloys are used for standard wells, sour service, HPHT, offshore, arctic and geothermal environments.
Manufacturing & Quality Control
We offer a full range of service from melting, open die forging, heat treatment, machining, NDT, dimension test to EN 10204 3.1/3.2 documentation.
Product Overview#
As a professional ISO 9001:2015 certified China manufacturer, Jiangsu Liangyi Co., Limited has provided clients with high quality products for more than 25 years. Our mian products include forging steel tubing hangers, forged steel casing hangers, and API 6A compliant mandrel-type casing & tubing hangers .And they are used for wellhead and Christmas tree equipment parts around the world. Our products are exported to more than 50 countries, and all of them worked well in the onshore/offshore oil & gas, geothermal energy, deep well drilling, and unconventional energy industries and other extreme condions.
We provide a full range of custom solutions, covering steel melting,open die forging, heat treatment, rough machining, and final CNC machining. And all parts are made based on client drawings and technical specifications. We have advanced forging and inspection equipment ,which make sure every hanger meets the international standard and workes well in the onshore/offshore oil & gas, geothermal energy, deep well drilling, and unconventional energy industries.
Casing Hanger vs Tubing Hanger: Key Differences for Engineers and Buyers #
Many buyers always search the two products at the same time, but procurement,following are the summarized differences of the two products for your reference.
| Comparison Item | Forged Steel Casing Hangers | Forging Steel Tubing Hangers |
|---|---|---|
| Main function | Support and seal the casing string within the wellhead system | Support and seal the production tubing string within the tubing head or tree system |
| Typical size range | 4-1/2” to 30” | 2-3/8” to 4-1/2” |
| Typical working pressure | 2000 Psi to 20000 Psi | 3000 Psi to 15000 Psi |
| Typical application stage | Well construction and casing program support | Completion and production tubing support |
| Design priorities | Heavy load capacity, casing suspension, sealing reliability and structural integrity | Reliable sealing, bore access, cable penetrations, intelligent completion compatibility and serviceability |
| Common material routes | 4130, 4140, 4340, duplex stainless steels, nickel alloys | 4130, 4140 LTCS, duplex stainless steels, Incoloy and Inconel grades |
Selection tip: when choosing between tubing hanger and casing hanger designs, the mian decision is always made based on pressure class, string size, material class, sealing method, corrosion environment, completion design and documentation requirements. That means reviewing custom drawing and full traceability are still very important even for standard API 6A projects.
Core Technical Specifications & Compliance Standards#
Our forged steel casing and tubing hangers fully meet API 6A, API 8A, API 8C, NACE MR0175/ISO 15156 and EN standards. And they have reliable, long-term performance in high-pressure, high-temperature (HPHT), corrosive, and extreme low-temperature downhole environments.
Forged Steel Casing Hangers Technical Parameters
- Working Pressure Range: 2000 Psi ~ 20000 Psi (13.8 MPa ~ 137.9 MPa)
- Nominal Size Range: 4-1/2” ~ 30”
- Product Specification Level (PSL): PSL1 ~ PSL4
- Material Class: AA, BB, CC, DD, EE, FF, HH
- Minimum Hot-Work Reduction Ratio: 6:1 (4:1 available with client approval)
- Temperature Adaptability: -60℃ ~ 350℃ (customizable for extreme geothermal or arctic conditions)
Forged Steel Tubing Hangers Technical Parameters
- Nominal Size Range: 2-3/8” ~ 4-1/2”
- Working Pressure Range: 3000 Psi ~ 15000 Psi
- Standard Working Temperature: -60℃ ~ 121℃ (KU), customizable for high-temperature geothermal applications up to 250℃
- Material Class: AA, BB, CC, DD, EE, FF, HH
- Product Specification Level (PSL): PSL1 ~ PSL4
- Seal Configuration: Pre-prepared industry-standard "T" configuration seal assembly
Advanced Product Design & Competitive Advantages#
Our tubing hanger adopts a premium mandrel-type design, which is widely recognized as a great solution for high-pressure, critical well applications. These tubing hangers have significant advantages compared to traditional slip-type hangers, such as no damage to the casing body, higher hanging load capacity, more reliable zero-leakage sealing performance and longer lifetime.
Main Design Features
- Extended Neck & T-Configuration Seal System: The long neck is CNC machined to make room for seals that fit in the standard "T" shape. You can power the seal by either injecting seal compound through the adapter's special injection port or by using lock screws in the tubing.They have no leakage issues even under extreme pressure fluctuations during fracturing or production operations.
- Dedicated Cable Penetration Holes: They are precision-machined with sealed penetrating holes to control lines and monitor cables in downhole.They provide a reliable, pressure-tight channel for connecting the wellhead control line to the surface console. This design fully supports intelligent well completion and real-time downhole pressure/temperature monitoring systems.
- Full Bore Compatibility: They are CNC machined to make sure of full bore compatibility with wellhead and Christmas tree equipment, so that flow restrictions are deleted and pressure loss is reduced during production, fracturing, or well intervention operations.
- Anti-Corrosion & Anti-Wear Optimization: We provide great prodution way to improve the quality of parts, such as custom surface treatments nitriding, hard chrome plating, and HVOF coating, as well as choosing the right materials for sour service, high CO2, saltwater, or marine environments, which can greatly extend the lifetime of the products in tough conditions.
Material Grade Selection Guide for Forged Hangers#
We make forging steel tubing hangers and casing hangers in a full range of material grades, suan as carbon steel, alloy steel, stainless steel, duplex/super duplex steel, and nickel-based super alloys. We buy all materials from certified, top-tier steel mills, and all of them are traceable and have EN 10204 3.1/3.2 mill test certificates. Explore our full material range on our Materials page.
| Application Scenario | Recommended Material Grades | Core Advantages |
|---|---|---|
| Standard Onshore Oil & Gas Wells | AISI 4130, AISI 4140, ASTM A694 F52/F60/F65 | Excellent mechanical properties, good machinability, cost-effective, fully meets API 6A standard requirements |
| Sour Service (H2S/CO2) Corrosive Environments | A182 F51 (2205), A182 F53 (2507), A182 F6NM, 17-4PH | Superior sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC) resistance, fully meet NACE MR0175/ISO 15156 |
| HPHT Deep Well & Ultra-Deep Well | Inconel 625, Inconel 718, Incoloy 825, Monel K500 | Excellent high-temperature strength, creep resistance, and corrosion resistance, stable performance under extreme pressure and temperature |
| Arctic & Low-Temperature Environments | AISI 4140 LTCS, A350 LF2/LF3, 15-5PH | Superior low-temperature Charpy V-notch impact toughness, no brittle fracture at -60℃ and below |
| Offshore Platform & Marine Environments | Super Duplex Steel F53/F55, Inconel 625, 904L | Excellent salt spray corrosion resistance, anti-biofouling performance, long lifetime in harsh marine and subsea environments |
Full Available Material Grades
- Carbon & Low Alloy Steel: AISI 4130, AISI 4140, AISI 4150, AISI 4340, AISI 4330V mod, AISI 4145H mod, AISI 8620, AISI 8630, ASTM A694 F52, F60-F65, F70, A182 F11, A182 F22
- Stainless & Precipitation Hardening Steel: AISI 410SS, 17-4PH, 15-5PH, A182 F6NM, A182 F51, A182 F53, A182 F44, A182 F55, A182 F61, A182 F60
- Nickel-Based & Super Alloys: Monel 400, Monel K500, Inconel 600, Inconel 625, Inconel 718, Inconel 725, Inconel X750, Incoloy 800, Incoloy 825, Incoloy 925, Incoloy 945, Nitronic 50, Nitronic 60, XM-19
Full In-House Manufacturing Process#
Unlike trading companies and small forging workshops, we provide a full range of production process in-house, from raw material melting,final inspection to packaging, maing sue every single product has high quality and can be traced.Our manufacturing covers an area of 80,000㎡, with original fixed assets up to 40 million USD.We have 2000T-6300T hydraulic forging presses, 1T-9T electro-hydraulic forging hammers, 30T melting equipment, and more than10 fully automated heat treatment furnaces.
Premium Melting Process
We use industry-leading double and triple melting processes method to make sure the steel has ultra-high purity, chemical uniformity and great mechanical properties . So that wellhead hangers are more safe and reliable even in extreme working conditions. Following are our melting routes :
- Standard Melting Route for Carbon/Alloy Steel: Basic Electric Furnace (EF) → Argon Oxygen Decarburization (AOD) / Vacuum Oxygen Decarburization (VOD) / Vacuum Degassing → Electroslag Remelting (ESR) / Vacuum Arc Remelting (VAR) (optional secondary VAR for critical applications)
- Premium Melting Route for Stainless Steel/Nickel-Based Super Alloys: Vacuum Induction Melting (VIM) → Electroslag Remelting (ESR) / Vacuum Arc Remelting (VAR) (optional secondary VAR for extreme performance requirements)
Full End-to-End Production Flow
- Raw Material Melting & Full Chemical Composition Analysis (Spectrometer Analysis)
- Precision Open Die Forging (minimum 6:1 hot-work reduction ratio for optimal grain refinement)
- Custom Heat Treatment (normalizing, quenching, tempering, solution treatment, aging treatment, fully customized to material and performance requirements)
- Rough Machining & Semi-Finish Machining
- 100% Non-Destructive Testing (NDT) & Full Mechanical Properties Inspection
- Final CNC Precision Machining (fully compliant with client 2D/3D drawings and technical specifications)
- Final Dimensional Inspection & Quality Documentation Packaging
- Anti-Corrosion Packaging & Global Shipping
Strict Quality Control & Inspection Standards#
We apply a full-process, ISO 9001:2015 certified quality management system and test every batch of products to make sure our delivery of parts has no defects. All inspection processes meet international standards and client-specific requirements, and third-party inspection (SGS, BV, DNV, TUV, etc.) is also available per request.
Compliance Inspection Standards
- ASTM A370: Standard Test Methods and Definitions for Mechanical Testing of Steel Products
- ASTM A751: Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
- ASTM E112: Standard Test Methods for Determining Average Grain Size
- ASTM A668: Standard Specification for Steel Forgings, Carbon and Alloy, for General Industrial Use
- API 6A: Specification for Wellhead and Christmas Tree Equipment
- API 8A / API 8C: Specification for Drilling and Production Hoisting Equipment
- NACE MR0175/ISO 15156: Materials for Sour Oil and Gas Environments
Full Inspection & Testing Items
- Full Chemical Composition Analysis (Advanced Spectrometer Analysis)
- Full Mechanical Properties Testing (tensile strength, yield strength, elongation, reduction of area, hardness, Charpy V-notch impact toughness)
- Full Metallographic Analysis (grain size, inclusion rating, microstructure inspection)
- 100% Non-Destructive Testing (NDT): Ultrasonic Testing (UT), Magnetic Particle Testing (MT), Penetrant Testing (PT), Radiographic Testing (RT) available on request
- Full Dimensional Inspection (CMM coordinate measuring machine available for complex geometries)
- Hydrostatic Pressure Testing (available on request)
Full Traceability Quality Documentation Package
We provide client full documents that is certified by EN 10204 3.1/3.2 for every order.These documents include:
- Purchase order details, material grade, heat number, size, weight, and delivery condition
- Full melting and forging process records
- Full chemical composition analysis report
- Full heat treatment procedure report
- Full mechanical properties test report
- Full metallographic analysis report
- 100% NDT inspection report
- Full dimensional inspection report
- EN 10204 3.1 / 3.2 Mill Test Certificate (MTC)
- Third-party inspection report (if requested)
Global Industry Applications & GEO-Targeted Verified Project Cases#
Our forging steel tubing hangers and casing hangers are the mian parts of wellhead and Christmas tree equipment, they are used in important energy industries around the world. Our products have been used in more than 50 countries, and they worked stably for a long time in extreme working conditions. View more of our successful projects on our Reference page.
Main Industry Applications
- Onshore conventional oil & gas wellhead systems
- Unconventional shale gas and tight oil fracturing wellheads
- Offshore oil & gas platform and subsea wellhead equipment
- Deep well and ultra-deep well drilling and production operations
- High-pressure high-temperature (HPHT) well completions
- Geothermal energy wellhead systems
- Underground gas storage (UGS) wellhead equipment
- Arctic and low-temperature oil & gas development
GEO-Targeted Verified Project Cases (Regional SEO Boost)
Case 1: North America - Permian Basin Shale Gas Fracturing Project (USA)
Client Pain Point: A leading US shale gas operator needed high-performance, high-cycle fatigue tubing hangers for horizontal well fracturing operations in the Permian Basin. These parts have to work in 10000 Psi pressure, and they must resistant to impact at -40℃ low-temperature.Alll of parts muse meet API 6A PSL2 and NACE MR0175 standards.
Our Solution: We provided 720 sets of custom forged steel tubing hangers (2-7/8” and 3-1/2” size) . These parts were made from AISI 4140 low-temperature carbon steel and had improved mandrel structure and T-configuration seal system. All products passed Charpy V-notch impact tests at -40℃, 100% UT/MT NDT inspection, and more than 1000 pressure cycle tests. We also provided the client the full EN 10204 3.2 MTC certification for all products.
Project Result: The hangers have been working stably for over 4.5 years . No leakage or failure occurred after more than 2000 high-pressure fracturing operations ,which help the client reduce wellhead maintenance costs by 35% . We diliveried all parts on time and help the client complete well development 2.5 weeks ahead of schedule.
Case 2: Middle East - Onshore Sour Gas Field Upgrade Project (Saudi Arabia)
Client Pain Point: A state-owned oil company in Saudi Arabia needed an upgrade for 180 wellhead systems in a high H2S/CO2 sour gas field. The parts must work well in 15000 Psi extreme high pressure, and they had to strongly resistante to ulfide stress cracking (SSC) . All of them must meet ARAMCO engineering standards and API 6A PSL3 specifications.
Our Solution: We supplied custom API 6A forged steel casing hangers (13-3/8” and 18-5/8” size) and tubing hangers which is made from super duplex steel A182 F53,and they fully meet NACE MR0175/ISO 15156. We improved the seal structure and material heat treatment process to make sure they could work stably for a long time in sour gas environments. All products passed third-party inspection by Bureau Veritas (BV).
Project Result: The hangers have been working stably for over 3.5 years, and no and corrosion or sealing failure occurred . That helped the client reduce unplanned downtime and improve maintenance frequency.We have been a long-term supplier for the client's the next ARAMCO projects.
Case 3: Europe - North Sea Offshore Oil Platform Wellhead Project (Norway)
Client Pain Point: An international offshore oil company needed casing and tubing hangers for 7 North Sea offshore platforms. All parts must meet PED/CE certification and EN standard. And they muse have great salt spray and marine corrosion resistance, compact structure for limited platform space, and suitability for HPHT subsea well applications.
Our Solution: We supplied custom API 6A forged casing hangers (9-5/8” size) and tubing hangers that were made from Inconel 625 nickel-based super alloy.They had improved compact mandrel structure, pre-pr epared T-configuration seal assembly, and multi-channel cable penetration holes for intelligent well monitoring. We tested all products by RT/UT/PT NDT inspection to make sure all of them meet PED/CE certification and EN 10204 3.2 MTC.
Project Result: The hangers have been installed and operated on all 7 offshore platforms.They strongly resisted to corrosion and sealed well in harsh marine and subsea environments, and had a long lifetime of 25-year
Case 4: Asia Pacific - Geothermal Wellhead System Project (Indonesia)
Client Pain Point: A leading geothermal energy developer in Indonesia needed high-temperature resistant tubing hangers for deep geothermal wells.These parts muse work stably for a long time at 220℃ high temperature, and they must have corrosion resistance to acidic geothermal fluid,. All of them need be made as per ASME and API standards.
Our Solution: We provided custom forged steel tubing hangers that were made from Incoloy 825 alloy. They had improved high-temperature resistant seal system and reinforced structure. The hangers were made with special penetrating holes for downhole temperature and pressure monitoring cables, which helped the clien manage the well conditon in time. All products passed high-temperature mechanical performance tests and 100% NDT inspection.
Project Result: The hangers have been working stably for 3 years, and they helped the client get efficient and stable geothermal power generation. So that the an annual power output was increase of 18% compared to the original wellhead system.
Case 5: South America - Pre-Salt Deep Water Oilfield Project (Brazil)
Client Pain Point: A Brazilian oil company needed heavy-duty casing hangers for pre-salt deep water oilfields. These parts must work well in 20000 Psi pressure and strongly resistante to 180℃ high temperature .all parts muse meet engineering standards and API 6A PSL4 specifications.
Our Solution: We supplied custom heavy-duty forged steel casing hangers (22” size)that were made from AISI 4340 modified alloy steel. We produced these parts with a triple melting process (EF + VOD + ESR) to make sure all of them have ultra-high purity and mechanical properties. We adopted a reinforced mandrel structure and dul seal system, with full heat treatment and grain refinement to meet the extreme working conditions of deep water pre-salt oilfields.
Project Result: We tested all products and provided the client third-party inspection by DNV for all parts. They have been installed in the deep water oilfield, and working stably under ultra-high pressure and high temperature for a long time.They all fully meet the client's design requirements.
Certifications & Compliance#
- ISO 9001:2015 Quality Management System Certification
- API 6A Wellhead and Christmas Tree Equipment Compliance
- API 8A / API 8C Drilling and Production Hoisting Equipment Compliance
- PED/CE Certification for European Market
- NACE MR0175/ISO 15156 Compliance for Sour Oil and Gas Environments
- EN 10204 3.1 / 3.2 Mill Test Certificate Available
- Third-Party Inspection Support (SGS, BV, DNV, TUV, etc.)
Frequently Asked Questions#
What is the difference between a casing hanger and a tubing hanger?
A casing hanger is used to support and seal the casing string in the wellhead, while a tubing hanger is used to support and seal the production tubing. Both are forged, load-bearing and sealing-critical components, but they are used for different strings and service duties.
Which standards do these forged hangers meet?
They meet API 6A, API 8A, API 8C, NACE MR0175/ISO 15156 and relevant EN documentation requirements.That means all parts can meet the project specification, material class and inspection level requested by the buyer.
What material options are available?
We provide clients many material options,such as carbon steel, low alloy steel, stainless steel, duplex and super duplex stainless steel, precipitation-hardening grades and nickel-based alloys such as Inconel, Incoloy and Monel. What the right material is depends on pressure, temperature, corrosion risk and client requirements.
Can Jiangsu Liangyi produce custom hangers from 2D or 3D drawings?
Yes. we provide a full range of service from steel melting, open die forging, heat treatment, rough machining to final CNC machining based on client 2D or 3D drawings, dimensions, tolerances, material requirements and inspection plans.
What quality documents are typically supplied with the order?
Typical documents include heat number traceability, chemical analysis reports, heat treatment reports, mechanical test results, metallographic analysis, NDT reports, dimensional test records and EN 10204 3.1 / 3.2 mill test certificates. Third-party inspection reports can also be available per required.
Are these forged hangers suitable for sour service, HPHT and geothermal wells?
Yes. Our products are used for sour gas, HPHT, offshore, low-temperature and geothermal inderstries, and all parts can be customized based on the actual operating environment.
What Information Should You Send for a Faster Quotation? #
To get a fast and accurate quotation, please send us the following information:
Basic Product Data
- Product type: casing hanger, tubing hanger or both
- Required size, pressure class and PSL level
- Material class and service environment
- Quantity and target delivery schedule
Engineering Inputs
- 2D drawings, 3D models or sample references
- Wellhead system interface dimensions
- Seal type, penetration hole requirements and completion details
- Any client or end-user standard requirements
Inspection & Documentation
- NDT scope such as UT, MT, PT or RT
- Mechanical tests, impact tests or corrosion-related verification
- EN 10204 3.1 / 3.2 certificate requirements
- Third-party inspection needs such as SGS, BV, DNV or TUV
Project Conditions
- Onshore, offshore, HPHT, sour service, geothermal or arctic application
- Operating temperature and pressure envelope
- Corrosion risks including H2S, CO2, chlorides or seawater exposure
- Packaging, marking and destination country requirements
Custom Forging Solutions & Inquiry Information#
As a professional forging steel tubing hangers and casing hangers manufacturer with over 25 years of experience, Jiangsu Liangyi Co., Limited will provide clients high-quality, cost-effective, and fully customized wellhead forging solutions. Whether you need standard API 6A hangers or fully custom products based on your 2D/3D drawings and technical specifications, we can deliver the optimal solution for your project.
Phone/WhatsApp: +86-13585067993
Website: https://www.jnmtforgedparts.com
Sitemap: Sitemap
Address: Chengchang Industry Park, Jiangyin City, Jiangsu Province, China
Welcome to send your custom 2D/3D drawings, material requirements, quantity, and project details to get a detailed quotation within 24 hours!