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Products Description

Product Name: High-Precision Hexagonal Threaded Metal Connector

Overview

This product is an industrial-grade metal connector designed for high-pressure and high-corrosion environments in fluid transport systems. Manufactured from high-strength alloy steel and precision CNC-machined, it ensures reliability and durability in complex industrial scenarios. Suitable for applications in petroleum, aerospace, automotive thermal management, and more.

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Core Specifications

Parameter	Technical Value	Testing Standard
Material	304 Stainless Steel (UNS S30400)	ASTM A240
Outer Diameter	Φ25.4mm ±0.05mm	ISO 2768
Wall Thickness	2.0mm	GB/T 3091
Thread Type	NPT 1/4"-18 UNF	ASME B1.20.1
Working Pressure	60MPa (static) / 35MPa (dynamic)	ISO 16860
Surface Treatment	Hard Chrome Plating (50μm thickness)	ASTM B695

Design Highlights

Hexagonal Connection
- Cold-forged for 30% higher strength than welded joints
- 12mm hexagonal flats for standard wrench operation
Optimized Thread Interface
- Roller-formed internal threads with IT7 precision
- Nitrided thread roots for 50% better anti-stripping performance
Hollow Cylindrical Structure
- Wall thickness uniformity ±0.03mm
- Inner surface polished to Ra 0.4μm for reduced fluid resistance

Manufacturing Process

Process Step	Technical Focus	Equipment Used
Bar Cutting	Laser length cutting (±0.1mm)	Trumpf TruLaser 5030
Hexagon Forming	Hydraulic cold heading (800 tons)	AIDA HFM-3000
Thread Machining	5-axis CNC turning	DMG MORI CTX Beta 800
Surface Coating	Ion-plated hard chrome	Balzers PVD 300

Application Scenarios

Oil & Gas
- High-pressure valve connectors (temp range: -40℃~200℃)
- Corrosion-resistant piping systems (pH 1-14 compatible)
Automotive
- EV battery cooling line joints
- Engine coolant circulation systems
Aerospace
- Hydraulic servo system fittings (AMS 2750E certified)
- Fuel transport lines (AS9100D compliant)

Quality Certifications

Material: SNI ISO 9001:2015
Process: IATF 16949 (Automotive)
Performance: API 6A (Oil & Gas)

Industry Solutions

Case Study: EV Battery Cooling System

Requirement	Solution	Performance
High-pressure Seal	Hexagon joint + dual O-rings	Zero leakage at 30MPa
Weight Reduction	Hollow design	18% lighter
Corrosion Resistance	Hard chrome + electropolish	Salt spray test ≥1000hrs

Technical Advantages
✅ Patented Technology: Cold heading hexagon forming (Patent No.: ZL2023000987)
✅ Eco-Certified: RoHS 2.0 compliant
✅ Support: CAD model download & 3D print samples available

Technical Support: +86 150-153-26863

Email: cassy@xqdmachining.com

Website: https://xqdmachining.com/index.html

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