Nai Lok Thread Male NPT Duplex Steel 2507 S32750 Tee High Strength 2.5 Mo Instrument Pipe Fitting for Acid Oil and Gas
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Product Highlights
- Superior Corrosion Resistance: 2507 grade offers exceptional resistance to chlorides, acids, and seawater with PRE > 40.
- High Strength Performance: Yield strength of 550 MPa, 22% higher than 2205, ideal for high-pressure systems.
- Customizable Threads: Supports NPT, BSPP, BSPT, and other thread types for universal compatibility.
- Forged Construction: Precision-forged from duplex stainless steel ensuring structural integrity and durability.
- Certified Quality: Compliant with ASTM A182, ISO, and CE standards with full Material Test Reports.
- Versatile Applications: Suitable for oil, gas, chemical processing, marine, and desalination industries.
- Flexible Customization: Offers full, minor, and sample-based customization for pressure and medium requirements.
- Low Minimum Order: Minimum Order Quantity is just 1 piece, allowing for small batch testing and procurement.
Product Attributes
- Customization
- Available
- After-sales Service
- Standard
- Warranty
- Standard
- Model NO.
- thread fitting male tee
- Type
- Equal
- Connection
- Male
- Material
- Stainless Steel
- Shape
- Equal Tee
- Lateral
- 90°Tee
- Head Code
- Hexagon
- Wall Thickness
- Double Ferrule Female Male
- Finish
- 6000psi
- Technics
- Forged
- Pressure Rating
- 6000LBS
- Standard
- ASTM
- Certification
- ISO, CE
- Pressure
- High Pressure
- Medium
- Gas
- High Pressure
- 6000psi
- Thread
- NPT BSPP BSPT
- Onnection Type
- Female or Male
- Transport Package
- Carton
- Specification
- 1/4-1"
- Trademark
- Nailok
- Origin
- China
- Production Capacity
- 1000000pieces/Years
- Package Size
- 30.00cm * 30.00cm * 30.00cm
- Package Gross Weight
- 15.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Nai Lok Thread Male NPT Duplex Steel 2507 S32750 Tee High Strength 2.5 Mo Instrument Pipe Fitting for Acid Oil and Gas
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Nai Lok Thread Male NPT Duplex Steel 2507 S32750 Tee High Strength 2.5 Mo Instrument Pipe Fitting for Acid Oil and Gas -
Nai Lok Thread Male NPT Duplex Steel 2507 S32750 Tee High Strength 2.5 Mo Instrument Pipe Fitting for Acid Oil and Gas -
Nai Lok Thread Male NPT Duplex Steel 2507 S32750 Tee High Strength 2.5 Mo Instrument Pipe Fitting for Acid Oil and Gas -
Nai Lok Thread Male NPT Duplex Steel 2507 S32750 Tee High Strength 2.5 Mo Instrument Pipe Fitting for Acid Oil and Gas -
Nai Lok Thread Male NPT Duplex Steel 2507 S32750 Tee High Strength 2.5 Mo Instrument Pipe Fitting for Acid Oil and Gas -
Nai Lok Thread Male NPT Duplex Steel 2507 S32750 Tee High Strength 2.5 Mo Instrument Pipe Fitting for Acid Oil and Gas -
Nai Lok Thread Male NPT Duplex Steel 2507 S32750 Tee High Strength 2.5 Mo Instrument Pipe Fitting for Acid Oil and Gas
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Product Description
NAI LOK Super Duplex Stainless Steel 2205 2507 Hex Nipple Male Tee Male NPT BSPP BSPT High Pressure 10000psi Instrument Thread Pipe Fitting Reducing Adapter Tee
NAI LOK Premium Super Duplex 2507 2205 Stainless Steel Superior Corrosion Resistance Hex Reducing Adapter Instrument Pipe Fitting
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Material Standards: UNS S32205 / S31803 (2205) | UNS S32750 (2507). Compliant with ASTM A182 for forged fittings.
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Thread Standards: NPT, BSPP, BSPT available as standard. Other threads can be customized.
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Pressure Rating: Pressure class ratings (e.g., 3000#, 6000# , 10000#) vary by size and material grade. Please consult our engineering datasheets for specific values.
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Heat Treatment: All fittings are supplied in the solution-annealed and quenched condition (per ASTM A182) to ensure optimal phase balance and corrosion resistance
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Inspection & Certification: Supplied with full Material Test Reports (MTRs) tracing to the original melt. Compliant with, ASTM, ASME, and other international standards.
These male tee are forged from duplex stainless steels, which feature a unique microstructure consisting of roughly equal parts austenite and ferrite phases
. This dual-phase structure synergistically combines the best properties of both: the high strength and stress corrosion cracking resistance of ferritic steels with the toughness and weldability of austenitic steels
The chemical composition is precisely controlled to optimize performance. Key alloying elements include Chromium (Cr) for passive oxide layer formation, Molybdenum (Mo) and Nitrogen (N) for enhanced pitting and crevice corrosion resistance
| Property / Grade | 2205 Duplex (UNS S32205/S31803) | 2507 Super Duplex (UNS S32750) | Advantage of 2507 |
|---|---|---|---|
| Typical Composition | 22.5% Cr, 5.7% Ni, 3.0% Mo, 0.15% N | 25% Cr, 7% Ni, 4% Mo, 0.27% N | Higher alloy content |
| Pitting Resistance Equivalent (PRE) | 32-39 | > 40 | Superior localized corrosion resistance |
| Yield Strength (min.) | 450 MPa | 550 MPa | 22% higher strength |
| Tensile Strength (min.) | 620 MPa | 800 MPa | 29% higher strength |
| Key Corrosion Resistance | Excellent resistance to stress corrosion cracking, pitting, and crevice corrosion | Exceptional resistance to chlorides, acids (e.g., sulfuric, acetic), and seawater | Extended service life in harsher media. |
| Primary Benefit | Cost-effective performance upgrade over 316L, with double the yield strength | Ultimate solution for aggressive environments, replacing more expensive nickel alloys | Maximum durability and ROI. |
| Material Grade | UNS Number (®) | Key Characteristics & Typical Applications |
|---|---|---|
| Inconel® 625 | UNS N06625 | Excellent fatigue and thermal fatigue strength. Resists a wide range of severe corrosives. Ideal for seawater, aerospace, and chemical processing. |
| Monel® 400 | UNS N04400 | Superior resistance to seawater and steam at high temperatures. Excellent for marine and hydrocarbon applications. |
| Hastelloy® C22 | UNS N06022 | Outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. Handles oxidizing and reducing media. |
| Hastelloy® C276 | UNS N10276 | Versatile corrosion resistance to a broad range of chemical process contaminants, including chlorides. |
| Hastelloy® B2 | UNS N10665 | Excellent resistance to reducing environments, especially hydrochloric acid at all concentrations and temperatures. |
| Hastelloy® B3 | UNS N10675 | Improved thermal stability and corrosion resistance over B2, with excellent resistance to hydrochloric acid. |
| Alloy 254 SMO® 6Mo 6Moly | UNS S31254 | Extremely high resistance to pitting and crevice corrosion, ideal for seawater and chloride-containing solutions. |
| Super Duplex® 2507 | UNS S32750 | High strength and excellent resistance to stress corrosion cracking, pitting, and crevice corrosion. |
| Duplex® 2205 | UNS S31803/S32205 | Good strength and improved resistance to stress corrosion cracking compared to standard stainless steels. |
| Alloy 904L | UNS N08904 | High chromium, nickel, molybdenum content provides excellent resistance to sulfuric acid and other aggressive chemicals. |
These fittings are engineered for sectors where reliability, safety, and longevity under stress and corrosion are paramount.
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Oil, Gas & Offshore Engineering: Ideal for seawater cooling systems, firewater lines, chemical injection skids, topside piping, and subsea equipment on platforms and FPSOs
. Their resistance to chloride-induced SCC is critical -
Chemical & Petrochemical Processing: Specified for piping handling sulfuric and organic acids, chloride-bearing process streams, and heat exchangers
2507 is particularly effective in diluted sulfuric acid environments -
Marine & Desalination: The premier choice for high-salinity environments in seawater reverse osmosis (SWRO) high-pressure piping, ballast systems, and offshore platform piping.
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Pulp & Paper Industry: Resists corrosion in aggressive digesters and bleaching equipment where chlorides and various acids are present
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High-Strength Mechanical & Structural Components: Suitable not just for fluid conveyance but also as high-integrity structural connectors in corrosive atmospheres where their strength-to-weight ratio is advantageous
NAI-LOK`s target is challenge and beyond the technical limits, continuing pursuit becoming the industry leader. Since the
establishment, we have settled the developing direction of research and develop precise valve, regulator, fluid connectors and high-tech flow control system products.
NAI-LOK`s products are widely accepted and approved by the users on its safety and stability. The application filed covering semi-conductor industry, aero-space industry, solar power battery, petroleum and petrochemical industry, power energy,bio-pharmaceuticals industry and vacuum system, etc. NAI-LOK will keep moving and making unceasing progress in the high-tech flow control field and serve the customers sincerely.
NAI-LOK`s reliable products are made continuous progress by the aim of "super, extreme, micro, preciseness" in the flow control system.
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI264759". Items marked "
" are certified.
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Company Profile
Established in 2000, NAI-LOK has made a name of itself in the list of top suppliers of in China. We focus on the production, research and development, sales of instrumentation valves and alloy valves. We have more than 20 years of precision valve manufacturing and 10 years of export experience.
Our strict control and management of the entire production process enables us to provide products that meet our customers' requirements for product safety, functionality and design at competitive prices, while ensuring the shortest lead times in the market.
We have the capability to manufacture and supply 4 different product categories, including:
1. General Instrumentation Valves and Fittings
2. High Purity & Ultra High Purity Products- NAI-LOK UHP PRODUCTS, Regulator, Bellows Valve, 3 PC high purity ball valve, Diaphragm Valve, Weld Fitting, Face seal Fitting, Gas Stick.
3. Hose & Tubing
4. Special Alloy Valves, fitting and tubings. Including material S31254 (6 Moly), Alloy 400, HC-276, C22, B3, Alloy 625, Duplex steel 2205 /2507 etc.
We hope there will be opportunities for cooperation.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 397 Damuqiao Road, Shaxi Town, Taicang City, Suzhou, Jiangsu, China
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Terms of Payment
- LC, T/T
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: one month -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1 Piece
Our Production Capability & Technical Expertise
- Main Products
- Gas Delivery System, Ball Valve, Pressure Regulator, Alloy Valve, 2/3/5 Valve Manifold, Instrumentation Ball Valves, Sample Cylinder, Pipe & Tube Fittings, Needle Valve, Hose & Tubing
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Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
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Inspection Method for Finished Products
- Have instructions and uniformly followed
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Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
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Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
-
Repeat Buyers Choice
- 50%~80%
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015, ISO14001
FAQ
- What is the difference between 2205 and 2507 grades?
- 2507 Super Duplex has higher alloy content (25% Cr, 4% Mo) compared to 2205 (22.5% Cr, 3% Mo), providing superior localized corrosion resistance (PRE > 40) and 22% higher yield strength.
- What thread types are available?
- Standard threads include NPT, BSPP, and BSPT. Other thread types can be customized based on specific requirements.
- What is the pressure rating of these fittings?
- Pressure class ratings vary by size and material grade, including 3000#, 6000#, and 10000#. Please consult engineering datasheets for specific values.
- What certifications do the products have?
- Products are compliant with ASTM A182, ASME, ISO, and CE standards, and are supplied with full Material Test Reports (MTRs).
- What is the Minimum Order Quantity (MOQ)?
- The Minimum Order Quantity is 1 piece, allowing for flexible procurement and testing.
- What is the lead time for production?
- Peak season lead time is within 15 workdays, while off-season lead time is approximately one month.
- Are customization options available?
- Yes, we offer full customization, minor customization, customization from samples, and customization from designs.
- What industries are these fittings suitable for?
- They are ideal for oil & gas, chemical & petrochemical processing, marine & desalination, pulp & paper, and high-strength mechanical applications.
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