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1/2 Inch Black Welding Pipe Nipple Size Chart | China Factory - Cangzhou Hongxin
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xProduct Details
Product Description
Cangzhou Hongxin is a leading China-based manufacturer specializing in precision 1/2 inch black welding pipe nipples. These industrial-grade fittings are designed with one end featuring standard threading and the opposite end prepared for welding, creating permanent, high-strength connections in piping systems. Our black finish provides natural corrosion protection while maintaining cost-effectiveness for various industrial applications.
Key Specifications
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Nominal Size: 1/2 inch (DN15)
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Thread Type: NPT (National Pipe Taper) standard
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Material: ASTM A53/A106 carbon steel
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Finish: Black (mill finish)
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Design: One threaded end, one welding-ready end
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Pressure Rating: Suitable for medium to high-pressure systems
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Temperature Range: -20°F to 750°F (-29°C to 399°C)
Complete Size Chart - 1/2" Black Welding Pipe Nipple
| Parameter | Dimension | Tolerance | Standard |
|---|---|---|---|
| Nominal Pipe Size | 1/2 inch | - | ANSI/ASME B36.10 |
| Outside Diameter (OD) | 21.34 mm (0.840 in) | ±0.5% | ASTM A53 |
| Thread Specification | NPT 1/2" | ANSI B1.20.1 | ASME B16.11 |
| Wall Thickness Options | |||
| - Schedule 40 (STD) | 2.77 mm (0.109 in) | ±10% | ASTM A106 |
| - Schedule 80 (XS) | 3.73 mm (0.147 in) | ±10% | ASTM A106 |
| - Schedule 160 | 4.78 mm (0.188 in) | ±10% | ASTM A106 |
| Welding End Preparation | Bevel 37.5° | ±2.5° | ASME B16.25 |
| Standard Lengths | |||
| - Close Nipple | 50 mm (2.0 in) | ±1.5 mm | Custom |
| - Short Nipple | 75-100 mm (3-4 in) | ±2.0 mm | Custom |
| - Long Nipple | 150-200 mm (6-8 in) | ±3.0 mm | Custom |
| Thread Length | 15 mm (0.59 in) | ±1.0 mm | ANSI B1.20.1 |
Material Specifications
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Base Material: Carbon Steel ASTM A53 Grade B / A106 Grade B
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Chemical Composition:
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Carbon (C): 0.30% max
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Manganese (Mn): 0.29-1.06%
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Phosphorus (P): 0.035% max
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Sulfur (S): 0.035% max
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Mechanical Properties:
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Tensile Strength: 415 MPa min
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Yield Strength: 240 MPa min
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Hardness: 137 HB max
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Applications
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Plumbing Systems: Water supply and drainage connections
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Industrial Piping: Process lines and equipment connections
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HVAC Systems: Heating and cooling installations
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Fire Protection: Sprinkler system components
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Manufacturing: Equipment and machinery piping
Quality Assurance
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100% dimensional inspection
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Thread gauge verification per ANSI B1.20.1
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Material certification per EN 10204 3.1
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Visual inspection for surface defects
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Hydrostatic testing available upon request
Manufacturing Process
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Raw Material Selection: Certified carbon steel pipes
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Precision Cutting: CNC cutting to exact lengths
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Thread Machining: CNC threading to NPT standards/BSPT standards
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End Preparation: Beveling for welding readiness
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Surface Treatment: Cleaning and black finish application
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Quality Control: Multi-stage inspection process
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Packaging: Industrial-grade packaging for export
Ordering Information
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Minimum Order Quantity: 500 pieces standard sizes
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Lead Time: 15-20 days for standard orders
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Customization Available: Special lengths, wall thicknesses
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Packaging Options: Bulk boxes or customized packaging
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Sample Policy: Samples available with minimal charge
Why Choose Hongxin Factory?
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30+ Years Manufacturing Experience
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ISO 9001:2015 Certified Facility
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Competitive Factory-Direct Pricing
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Custom Engineering Capabilities
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Global Export Expertise
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Comprehensive Quality Documentation
FAQ
Q: What is the difference between Schedule 40 and Schedule 80?
A: Schedule 80 has thicker walls and higher pressure rating than Schedule 40.
Q: Can you supply metric threaded versions?
A: Yes, we manufacture BSPT and metric threads upon request.
Q: Are these nipples suitable for steam applications?
A: Yes, with proper material selection and pressure rating verification.
Q: Do you provide material test certificates?
A: Yes, full material certification with every shipment.
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