ASTM A733 Galvanized Steel Pipe Nipple with NPT Thread | Cangzhou Hongxin

Product Overview

Cangzhou Hongxin is a certified manufacturer of ASTM A733 galvanized steel pipe nipples with NPT thread, engineered to deliver exceptional durability and corrosion resistance in demanding industrial applications. Our galvanized pipe nipples comply with the rigorous ASTM A733 standard, ensuring consistent quality, precise dimensions, and reliable performance in plumbing, oil and gas, construction, and chemical processing systems worldwide.

Key Features & Benefits

• ASTM A733 Compliance: Manufactured to meet ASTM A733 specifications for welded and seamless steel pipe nipples.

• Hot-Dip Galvanized Finish: Superior zinc coating provides excellent corrosion resistance in harsh environments.

• NPT Thread Precision: Threads conform to ANSI/ASME B1.20.1 standards for leak-proof connections.

• Material Strength: Made from high-grade carbon steel with enhanced mechanical properties.

• Versatile Applications: Suitable for outdoor, marine, and industrial installations.

• Long Service Life: Galvanization extends product lifespan, reducing maintenance costs.

Technical Specifications

Applications

• Water Supply Systems: Potable water and irrigation pipelines

• Oil & Gas Infrastructure: Corrosion-resistant connections

• Marine & Coastal Installations: Saltwater-resistant fittings

• Fire Protection Systems: Sprinkler and hydrant connections

• Industrial Plumbing: Chemical and processing plant piping

• Construction Projects: Structural and utility piping networks

Quality Assurance

• Material Certification: All raw materials certified to ASTM standards

• Thread Verification: 100% thread gauge inspection per ANSI B1.20.1

• Galvanizing Quality: Salt spray testing per ASTM B117

• Dimensional Accuracy: Full compliance with ASTM A733 tolerances

• Pressure Testing: Hydrostatic testing available upon request

Manufacturing Process

1. Material Selection: ASTM A53 or A106 carbon steel pipes

2. Cutting & Threading: Precision CNC machining of NPT threads

3. Surface Preparation: Cleaning and pickling for optimal adhesion

4. Hot-Dip Galvanizing: Immersion in molten zinc at 450°C (842°F)

5. Quality Inspection: Coating thickness measurement and visual check

6. Packaging: Protective packaging to prevent coating damage

Why Choose Cangzhou Hongxin?

1. 30+ Years Specialization in pipe fittings manufacturing

2. ISO 9001:2015 Certified quality management system

3. Complete ASTM Compliance with full traceability

4. Competitive Pricing with factory-direct advantages

5. Custom Manufacturing for special requirements

6. Global Export Experience to 50+ countries

Ordering Information

• Standard Sizes: Available from stock for quick delivery

• Custom Orders: Special lengths, threads, and coatings available

• Minimum Order: 100 pieces for standard items

• Lead Time: 15-25 days for standard production

• Packaging: Export-standard wooden cases or cartons

FAQ

Q: What is the advantage of ASTM A733 standard?
A: ASTM A733 ensures consistent quality, dimensional accuracy, and mechanical properties for both welded and seamless pipe nipples.

Q: Can galvanized nipples be used for drinking water?
A: Yes, when compliant with local potable water standards and certifications.

Q: What is the maximum temperature for galvanized fittings?
A: Recommended maximum continuous service temperature is 650°F (343°C).

Q: Do you provide test certificates?
A: Yes, we provide material certificates, galvanizing reports, and inspection documents.