Carbon Steel Full Threaded Coupling Fittings Black Oxide Treated
2.Corrosion-resistant full-thread steel fitting .
3.Industrial full-thread black-boiled connector .
4.High-strength full-thread carbon steel fitting .
5.Wear-resistant black-boiled full-thread fitting .
6.Precision-machined full-thread carbon fitting .
7.Durable full-thread black steel pipe accessory
Description
Carbon Steel Full Threaded Coupling Fittings Black Oxide Treated
When you need reliable pipe connections for high-pressure industrial systems, Carbon Steel Full Threaded Coupling Fittings Black Oxide Treated convey the execution you can believe. These precision-engineered fittings interface two channels with indistinguishable distances across whereas giving prevalent string assurance and dimensional solidness. The dark oxide treatment makes a magnetite coating that anticipates string rankling and offers amazing erosion resistance without including bulk to your connections.
Our product solve common industry challenges like string sticking amid high-torque gathering and coating drops in water powered frameworks. The oil-absorbent surface encourages less demanding upkeep whereas keeping up the auxiliary judgment you require for requesting applications.



Technical Specifications
Our couplings meet exacting industry guidelines for fabric composition and execution. The carbon steel development guarantees tall pliable quality whereas keeping up great machinability for exact threading.
| Specification | Details |
|---|---|
| Material Grade | ASTM A105, ASTM A350 LF2 |
| Thread Type | NPT (ASME B1.20.1), BSPT (ISO 7-1) |
| Pressure Rating | Class 3000 (3000 PSI), Class 6000 |
| Coating Standard | MIL-DTL-13924, AMS 2485 |
| Coating Thickness | Less than 1 micron |
| Temperature Range | Up to 900°F (482°C) |
| Size Range | 1/8" to 4" |






Key Features
Dimensional Exactness: The dark oxide coating includes less than 1 micron thickness, guaranteeing culminate string engagement without interference.
Anti-Galling Properties: The permeable magnetite layer holds oil and diminishes grinding, avoiding cold-welding amid installation.
Superior Solidness: Withstands tall temperatures up to 900°F without peeling or chipping.
No Hydrogen Embrittlement: Our chemical transformation handle jam fabric ductility for high-stress applications.
Corrosion Assurance: Gives shelf-life security whereas keeping up dimensional tolerances.
Dimensions and Specifications Table
| Size (NPT) | Length (mm) | Hex Size (mm) | Weight (kg) |
|---|---|---|---|
| 1/8" | 25 | 14 | 0.015 |
| 1/4" | 30 | 19 | 0.035 |
| 3/8" | 32 | 22 | 0.055 |
| 1/2" | 38 | 27 | 0.095 |
| 3/4" | 45 | 32 | 0.155 |
| 1" | 50 | 41 | 0.235 |
| 1-1/4" | 55 | 48 | 0.345 |
| 1-1/2" | 60 | 55 | 0.485 |
| 2" | 70 | 70 | 0.785 |






Materials and Surface Treatment
We manufacture our Carbon Steel Full Threaded Coupling Fittings Black Oxide Treated from premium carbon steel grades that give great strength-to-weight proportions. The dark oxide treatment includes a controlled chemical transformation prepare that changes the surface into magnetite (Fe3O4). This makes an fundamentally coating that gets to be portion of the metal surface or maybe than an connected layer.
The treatment handle kills the dimensional issues related with thick zinc coatings whereas giving prevalent tribological properties. Your fittings arrive with a non-reflective, oil-absorbent wrap up that improves get together performance.






Application Areas
Hydraulic Frameworks: Idealize for high-pressure manifolds where coating defilement might harm touchy valves.
Manufacturing Tooling: Perfect for pneumatic carriers in car and aviation offices where light reflection must be minimized.
Fire Concealment: Basic for gas lines requiring culminate string geometry for gas-tight sealing.
Industrial Apparatus: Fabulous for complex frameworks requiring visit support and disassembly.
Instrumentation: Reasonable for exactness applications where dimensional solidness is paramount.





Installation Instructions
- Inspect strings for harm some time recently assembly
- Apply suitable string sealant if required
- Hand-tighten the fitting into the female connection
- Use appropriate torque measure to maintain a strategic distance from overtightening
- Tighten to manufacturer's torque specifications
- Verify association judgment some time recently pressurizing system
Quality Control
Our ISO 9001 quality framework guarantees reliable item execution. Each bunch experiences thorough testing counting dimensional confirmation, string gage testing, and coating attachment checks. We keep up nitty gritty traceability records for all materials and fabricating processes.
With over 26 a long time of casting and pipe fitting encounter, we get it the basic nature of your applications. Our quality group performs persistent observing all through generation to provide the unwavering quality you expect.
OEM and Customization Services
We offer comprehensive customization alternatives for your particular prerequisites. Our building group can alter measurements, string details, or coating choices to coordinate your one of a kind applications. With an yearly generation capacity of 30,000 tons and over 1,000 item determinations, we have the adaptability to handle both standard and custom orders.
Our experienced specialized faculty work closely with your group to create arrangements that meet your correct determinations whereas keeping up our tall quality standards.






Frequently Asked Questions
Q: How does black oxide treatment compare to galvanizing?
A: Black oxide adds minimal thickness without affecting thread dimensions, while galvanizing can cause thread interference issues.
Q: Can these fittings handle high-temperature applications?
A: Yes, our product withstand temperatures up to 900°F without coating degradation.
Q: What thread sealants work best with these fittings?
A: Standard pipe thread compounds and PTFE tapes work excellently with our black oxide surface.
Contact Us
Ready to enhance your piping systems with premium Carbon Steel Full Threaded Coupling Fittings Black Oxide Treated? Our technical team is here to help you select the right specifications for your applications.
Contact us today at zhiyuan@mifittings.com for detailed quotations, technical support, or custom manufacturing solutions. We're committed to delivering the quality and service that keeps your operations running smoothly.
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