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NXF UNS S20910 XM-19 OD DN6-DN1200 Pressure 3000-9000lb Special Stainless Steel Forging Threaded Union
Threaded unions, also known as threaded couplings, are compact, easy-to-assemble and disassemble detachable pipe fittings. They utilize a threaded connection, allowing for quick pipe connection and disconnection without welding, and are suitable for the installation and maintenance needs of medium and low-pressure pipeline systems.
The products strictly adhere to industry standards such as ASME B16.11, GB/T 14383, and MSS SP-83, and are forged from high-quality materials such as carbon steel, stainless steel, and brass. They feature tight connections, reliable sealing, corrosion resistance, and stable pressure resistance. The high thread precision prevents loosening after assembly, effectively avoiding fluid leakage.
They are widely used in petrochemical, water supply and drainage, power, metallurgy, municipal engineering, and machinery equipment industries, suitable for conveying various media such as gases and liquids. Thread specifications (such as NPT,
magneticpermeability of this alloy allows it to be used as a material for medical implants.
Machinability
Stainless steel grade UNS S20910 XM-19 has machinability characteristics that are similar to other austenitic stainless
steels;however it requires slower speeds, more power, and higher rigidity due to its high work hardening rate. It is recommended that coated carbide tooling be used.
Forming
Stainless steel grade UNS S20910 XM-19 can be formed using the same methods applied for other austenitic stainless steels. More power for forming and forging is needed for this alloy. Forging can be done at 1177-1204°C (2150-2200°F).
Welding
Welding of stainless steel grade UNS S20910 XM-19 can be performed using traditional joining processes. Recommended filler metal should be UNS S20910 XM-19 (AWS E/ER209).
Caution should be taken while using autogenous, high power density joining processes such as EB or laser welding, due to low FN potential and severe outgassing possibility.
Heat Treatment
Final annealing process performed for several of the applications, is done at 1065°C (1950°F), which is followed by water
quenching. In case this material is used in a strongly corrosive environment, annealing should be done at 1121°C (2050°F). This alloy cannot be hardened by heat treatment.
Our Advantages
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality.
3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
4.We have excellent quality certificate system and trademark certificat
1. Raw Material Selection and Pre-treatment: High-quality raw materials meeting industry standards, such as carbon steel, stainless steel, and brass, are selected. Material testing and dimensional inspection are performed first. Surface oxide scale, oil stains, and impurities are removed, and defects such as cracks and porosity are checked to ensure the raw material quality meets standards, providing a guarantee for subsequent processing.
2. Forging and Shaping: Precision die forging is used. The pre-treated raw materials are heated to the specified temperature and forged into core components such as the connector body, nut, and connector body using forging equipment. This ensures that each component has a dense structure and meets mechanical performance standards, satisfying subsequent thread processing and pressure requirements.
3. Precision Thread Machining: The threads of each component are machined meticulously according to NPT, BSP, and G standard thread specifications. Thread accuracy, pitch, and surface finish are controlled to ensure a tight thread fit and smooth connection, avoiding potential loosening or leakage after assembly.
4. Auxiliary Precision Machining: Auxiliary machining such as turning and grinding is performed on threaded parts and joint interfaces to remove burrs and smooth the fit of the joints. Sealing grooves are also machined to lay the foundation for improved sealing performance.
5. Surface Treatment: Depending on the operating conditions and customer requirements, finished components undergo surface treatments such as galvanizing, pickling and passivation, and polishing to enhance corrosion resistance and rust prevention, extend service life, and improve the product's appearance.
6. Assembly and Sealing Inspection: All components are precisely assembled. After installing the seals, sealing performance testing is conducted to simulate low- and medium-pressure conditions and identify potential leaks. The tightness of threaded connections is also checked to ensure that the assembled product meets usage standards.
7. Finished Product Inspection and Packaging: Products that pass assembly and inspection undergo final dimensional verification and visual inspection. Unqualified products are discarded. Qualified products are packaged according to specifications, labeled with product model, material, thread specifications, etc., and properly protected for easy storage and transportation.
Established in 1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship."
Our advantage as follow:
1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give
you the lowest price.
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate
and control the quality.
3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
1. who are we? We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid
East(10.00%),Eastern Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern
Europe(5.00%),Central America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.
2.how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products
4. why should you buy from us not from other suppliers?
Our advantage:3S Service (Small Quantity/Short Time/Special Material)
We have our own factories, quality can be controlled seriously.
We Specialize in manufacturing about 21 years.
We have professional testing department and testing equipment.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
LanguageSpoken:English,Chinese,Spanish,Russian
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