NXF UNS C28000 H59 CuZn40 OD DN6-DN1200 Pressure Class 3000-9000lb Brass Forging Fitting 90 Degree Male Thd Compression Elbow

UNS C28000 CuZn40 brass, commonly referred to as Muntz metal, is an alpha-beta copper-zinc alloy with a balanced blend of strength, moderate corrosion resistance, and cost-effectiveness that outperforms lower-zinc brasses in structural applications. The high strength, good formability, and excellent machinability (in leaded variants) of this alloy allow it to be used in architectural components, marine hardware, and general engineering parts.
Machinability
Brass grade UNS C28000 CuZn40 has machinability characteristics typical of alpha-beta brasses; however, due to its moderate work hardening rate and zinc content, it requires stable cutting speeds, sufficient power, and higher rigidity to prevent tool chatter.It is recommended that coated carbide or high-speed steel tooling be used, with appropriate coolant to manage heat buildup.
Forming
Brass grade UNS C28000 CuZn40 can be formed using the same methods applied for other copper-zinc alloys, including hot forging,stamping, and bending. More power for forming and forging is needed for this alloy due to its higher strength compared to low-zinc brasses. Hot forging can be done at 650-800°C (1200-1470°F).
Welding
Welding of brass grade UNS C28000 CuZn40 can be performed using traditional joining processes such as brazing, soldering, and gas metal arc welding (GMAW). Recommended filler metal should be matching copper-zinc alloys (AWS RCuZn-B) or silicon bronze to minimize dezincification. Caution should be taken while using high-temperature welding processes such as arc welding, due to high zinc vaporization potential and severe porosity possibility.
Heat Treatment
Final annealing process performed for several of the applications, such as stress relief or softening for forming, is done at
600-700°C (1110-1290°F), which is followed by air cooling or water quenching. In case this material is used in a corrosive
environment, stress-relief annealing should be done at 250-300°C (480-570°F) to reduce residual stresses. This alloy cannot be hardened by heat treatment; mechanical strength is increased through cold working.

The 90 Degree Male Thread Compression Elbow is a high-precision pipe fitting designed for 90° direction change in fluid
transmission systems. It combines male thread connection and compression ferrule sealing structure, featuring compact structure,quick installation and reliable tightness. This elbow is widely compatible with copper tubes, stainless steel tubes and plastic hoses, suitable for plumbing, pneumatic, hydraulic, industrial equipment and general fluid pipeline connection scenarios. It realizes angle steering without welding, effectively saving construction time and pipeline layout space.

1.   Raw Material PreparationSelect standard brass, carbon steel or stainless steel raw materials. Cut into fixed specifications, clean oil stains and burrs. Conduct incoming size and quality inspection to ensure compliance.2.   Forming ProcessingUse hot forging or cold pressing to form the 90° elbow shape. Perform stress relief treatment for metal parts. Control forming angle and appearance to avoid cracks and deformation.3.   Precision MachiningMachine male threads (THD) and compression end seats with CNC equipment. Deburr and chamfer, ensure thread accuracy and fitting tightness.4.   Compression Component AssemblyAssemble compression nut and ferrule onto the elbow body, confirm correct orientation and smooth assembly without jamming.5.   Surface TreatmentCarry out electroplating, passivation or anti-rust treatment according to material, prevent corrosion and improve appearance.6.   Quality InspectionCheck size, thread, sealing performance and appearance. Reject unqualified products.7.   Packaging & StoragePackage finished products with anti-collision materials, mark specifications, and store in a dry and ventilated environment.

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New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals,machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories.   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.Such as PMI testing

3. Our biggest advantage is 3S service. Small quantity, short time, special materials.

4.We have excellent quality certificate system and trademark certificate

5.We have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.

6.We have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.