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NXF UNS S20910 XM-19 OD DN6-DN1200 Pressure 3000-9000lb Special Stainless Steel Forging Fitting Threaded Hex Head Bushing
A hex head bushing is a cylindrical mechanical connector with a hexagonal head and a threaded inner hole. It is also often called a hexagonal internal/external thread bushing or a hexagonal reducing bushing. It is a core hardware component used for transition connections, diameter changes, positioning, and sealing in industrial pipelines and equipment assembly, and is widely compatible with various thread specifications of pipelines and equipment interfaces.
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.
Hex Head Bushing Produce Processing
1. Material Preparation & Inspection Select solid round bar as raw materialCheck surface quality, straightness and diameter of the round barEnsure no cracks, defects or inclusions before processing
2. Cutting & Blanking Automatic sawing or CNC cutting to fixed lengthReserve machining allowance for length and diameterEnsure flat end faces without burrs or deformation
3. CNC Turning (Rough Machining) Clamp workpiece in CNC latheFace both ends to ensure flatnessRough turn outer diameter and hexagonal blankDrill and bore center hole, reserve allowance for internal threading
4. External Thread Machining Precision CNC thread turning or thread rollingForm standard external threads (metric, BSP, NPT, etc.)Control thread pitch, diameter and toleranceCheck with thread gauges for fitting accuracy
5. Internal Thread Machining Precision tapping or CNC internal threadingEnsure full-depth, uniform internal threadMaintain high coaxiality between inner hole and outer thread100% inspection with thread plug gauges
6. Hex Head Forming
Method 1 (high precision): Milling on CNC turning-milling machineMethod 2 (mass production): Forging / heading processForm standard hexagonal shape with accurate flat-to-flat sizeEnsure stable structure for wrench installation
7. Chamfering & Deburring Chamfer thread ends (usually 45°) for easy assemblyRemove sharp edges, burrs and machining chipsSmooth all surfaces to avoid scratching or damage during installation
8. Surface Treatment Optional: Polishing, brushing or other surface finishing processesClean oil, coolant and contaminants from surface and threads
9. Final Quality Control Dimensional inspection: length, outer diameter, hex size, thread toleranceCoaxiality and concentricity testingAppearance check: no scratches, cracks, deformation or defectsRandom sampling inspection for overall quality
10. Packaging & Warehousing Anti-collision and protective packagingSort by size and specificationPack into cartons or storage boxesLabel clearly for delivery and inventory man
departments to coordinate and control the quality.Such as PMI testing
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:
advantage in price and can give you the lowest price.
International Station, as well as remote technical guidance and services.
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?
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