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Precision Forged
RTJ Flange Solutions

Leading the metal products industry with high-performance Ring Type Joint (RTJ) flanges. We combine advanced forging technology with rigorous quality standards to provide leak-proof sealing solutions for the most extreme pressure environments in global oil and gas infrastructure.

5000+
Annual Output
120+
Countries Served
7 Days
Sample Lead Time
99.8%
On-Time Delivery

Engineering Excellence
& Industrial Mastery

Setting the global benchmark for Ring Type Joint forging and distribution.

As a premier RTJ flange factory, we occupy a dominant position in the metal products industry, specializing in the manufacturing of high-pressure forged components. Our facility integrates closed-die forging and precision CNC machining to ensure every flange meets the stringent demands of API 6A and ASME B16.5 standards.

Our technical advantage lies in our advanced heat treatment processes and metallurgical control, which eliminate internal voids and maximize structural integrity. By utilizing premium alloy steels and stainless grades, our RTJ flanges provide unmatched corrosion resistance and sealing reliability in critical high-temperature and high-pressure oilfield environments.

Our Technical
Foundation

Three core pillars driving our forging superiority and product reliability.

01

Forging Precision

Mastering the art of metal deformation for superior grain structure.

  • ▪Microstructure Control:Optimized grain refinement via controlled forging temperatures.
  • ▪Zero Defect Policy:100% ultrasonic testing to ensure zero internal porosities.
  • ▪Net-Shape Forging:Reducing machining waste while maintaining structural integrity.
02

Material Integrity

Sourcing and refining the highest grade alloys for extreme environments.

  • ▪Alloy Specialization:Expertise in Duplex, Super Duplex, and Inconel materials.
  • ▪Heat Treatment:Precision quenching and tempering for optimal hardness.
  • ▪Corrosion Defense:Advanced surface passivation and coating options.
03

Dimensional Accuracy

Ensuring perfect fit and seal through microns-level precision.

  • ▪CNC Machining: High-speed precision centers for flawless RTJ grooves.
  • ▪Surface Finish: Ra 3.2μm standard finish for optimal ring contact.
  • ▪CMM Validation: 3D coordinate measurement for every critical dimension.

Production Analytics
& Performance Metrics

Data-driven insights into our manufacturing capacity and product quality.

Material Distribution by Volume

RTJ Performance Benchmark

Technical Parameters
Specification Guide

Detailed standards for our high-pressure RTJ flange series.

Material Grade
Nominal Size
Pressure Class
Standard
Facing
Max Temp
ASTM A105 Carbon Steel
2" - 24"
150# - 2500#
ASME B16.5
RTJ Groove
425°C
ASTM A182 F316L
1/2" - 24"
150# - 2500#
ASTM/ASME
RTJ Groove
870°C
ASTM A182 F51 Duplex
2" - 12"
600# - 2500#
API 6A
RTJ Groove
315°C
ASTM A182 F53 Super Duplex
2" - 12"
600# - 2500#
API 6A
RTJ Groove
250°C
Inconel 625
1" - 12"
Custom/High
Special Spec
RTJ Groove
980°C
ASTM A182 F304
1/2" - 24"
150# - 2500#
ASME B16.5
RTJ Groove
815°C
Monel 400
1" - 12"
Custom
Special Spec
RTJ Groove
538°C
Titanium Gr. 2
1" - 8"
Custom
ASTM/Special
RTJ Groove
400°C

Real-World
Impact

Deploying high-pressure sealing solutions across global energy sectors.

North Sea Oil Rig Expansion

Deepwater Exploration

Supplied a complete set of Super Duplex RTJ flanges for a high-salinity, high-pressure subsea manifold system.

Pressure 15,000 PSI Zero Leakage 100%

Gulf Coast Refinery Upgrade

Petrochemical Process

Custom forged A105 carbon steel RTJ flanges for high-temperature steam lines in a refinery revamp.

Delivery -15 Days Weight 12 Tons

Middle East Gas Pipeline

Cross-Border Transport

Mass production of API 6A RTJ flanges in F316L stainless steel for corrosive H2S environments.

Units 2,500+ Standard API 6A

Arctic Drilling Station

Extreme Cold Ops

Special impact-tested forged flanges designed to maintain ductility at -46°C operating temperatures.

Temp -46°C Testing Charpy V

Offshore LNG Terminal

Cryogenic Systems

Precision Inconel 625 RTJ flanges for cryogenic LNG loading arms, ensuring zero thermal leak.

Seal Vacuum Precision ±0.01mm

Hydrogen Power Plant

Clean Energy Tech

Developed specialized forged RTJ flanges for hydrogen transport, mitigating hydrogen embrittlement.

Safety Level 4 Certification ISO 15156

Industry
Applications

Tailored solutions for demanding environments.

Upstream Oil & Gas

High-pressure Christmas tree and wellhead flange systems requiring absolute sealing.

Chemical Processing

Corrosion-resistant duplex and super duplex flanges for aggressive chemical reagents.

LNG Infrastructure

Cryogenic grade forging for liquefied natural gas transport and storage tanks.

Nuclear Energy

Ultra-high purity forged components for coolant loops and radiation shielding.

Geothermal Power

Heat-resistant alloy flanges for geothermal brine extraction wells.

Marine Engineering

Salt-water resistant forged components for offshore platforms and tankers.

Quality Assurance
& Export Standards

Full Traceability System

Every flange is laser-etched with a unique heat number, linking back to raw material mill certificates and inspection reports.

Non-Destructive Testing (NDT)

We employ Ultrasonic (UT), Magnetic Particle (MT), and Liquid Penetrant (PT) testing to guarantee internal integrity.

Dimensional Certification

Rigorous adherence to ASME and API tolerances, verified by calibrated CMM equipment for every batch.

Trust Verified

Our manufacturing processes are audited by third-party agencies to ensure global compliance.

✓ ISO 9001:2015 ✓ API Spec 6A ✓ PED 2014/68/EU

Frequently Asked
Questions

Expert answers to common technical and commercial inquiries.

01

What are the main advantages of RTJ flanges over Weld Neck flanges?

RTJ flanges provide a superior metal-to-metal seal through the use of a ring gasket, making them ideal for extremely high-pressure applications where conventional gaskets would fail. As a professional RTJ flange factory, we ensure the groove precision is optimized for this seal.

02

Do you support custom material grades beyond ASTM standards?

Yes, we specialize in exotic alloys including Inconel, Monel, and Hastelloy. We can forge and machine flanges based on your specific metallurgical requirements and project-specific specifications.

03

What quality certifications accompany each shipment?

Every shipment includes a full MTC (Mill Test Certificate) according to EN 10204 3.1, NDT reports, and a dimensional inspection certificate signed by our QC department.

04

What is the typical lead time for custom RTJ forged flanges?

Standard materials typically take 3-4 weeks. For exotic alloys or very large diameters, lead times range from 6-10 weeks depending on the forging schedule and heat treatment requirements.

05

How do you prevent hydrogen embrittlement in high-strength alloys?

We implement strict baking cycles after plating and utilize NACE MR0175/ISO 15156 compliant materials with controlled hardness levels to minimize susceptibility to sulfide stress cracking.

06

Can you provide flanges with integrated cladding?

Yes, we can provide cladding services where a corrosion-resistant layer (like Inconel 625) is applied to the RTJ groove face of a carbon steel flange via weld overlay.

Secure Your Pipeline with RTJ Mastery

Contact our engineering team today for high-precision forged flanges that guarantee safety and performance under extreme pressure.

Get a Quote