Hex Nipple
What is a Hex Nipple?
A Hex Nipple is a short, threaded pipe fitting machined from solid bar stock, featuring male threads on both ends and a central hexagonal section for easy wrench tightening. It connects two female-threaded fittings or components in a straight-line configuration, commonly used in instrumentation panels, fluid handling, gas lines, and hydraulic systems.
Due to its hex body, it ensures easy installation, precise alignment, and secure mechanical strength in both high-pressure and corrosive environments.
Key Features
- Straight Inline Connection – Joins two female-threaded ports or pipes.
- Wrench-Friendly Design – Hexagonal center allows for secure tightening.
- Thread Flexibility – Available in NPT, BSP, BSPT, or metric thread types.
- Corrosion & Pressure Resistance – Suitable for chemical, oil, and water lines.
- Complies with Industry Standards – ASME, ASTM, MSS-SP, and DIN certified.
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Details |
|---|---|
| Sizes | ⅛" to 4" |
| Thread Types | NPT, BSP, BSPT, ISO Metric |
| Pressure Ratings | Class 3000 / 6000 |
| Material Options | SS 304 / 316, Carbon Steel, Duplex, Alloys |
| Standards | ASME B16.11, MSS-SP-95, BS 3799 |
| Manufacturing | Precision Machined from Bar Stock |
| Property | Typical Value |
|---|---|
| Tensile Strength | 485 – 750 MPa |
| Yield Strength | 250 – 450 MPa |
| Elongation | 20% – 30% |
| Hardness | 125 – 250 HB |
| Temperature Range | -46°C to +650°C |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 – 0.35 |
| Manganese (Mn) | 0.60 – 1.65 |
| Silicon (Si) | 0.15 – 0.80 |
| Chromium (Cr) | 16.0 – 20.0 |
| Nickel (Ni) | 8.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Iron (Fe) | Balance |
| Standard | Equivalent Grade |
|---|---|
| ASTM | A276, A182 F304 / F316, A105 |
| ASME | B16.11 |
| MSS-SP | SP-95 |
| BS | 3799 |
| DIN | 2950, 2975 |
| Hex Nipple Type | Size (inches) | Weight per 100 pcs (kg) |
|---|---|---|
| Standard Hex Nipple | ½" | 7.50 |
| Standard Hex Nipple | 1" | 9.80 |
| Standard Hex Nipple | 1½" | 12.40 |
| Standard Hex Nipple | 2" | 18.60 |
Applications of Hex Nipple
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is a hex nipple used for?
It connects two female-threaded components in a straight line, with a central hex for tightening.
Are hex nipples available in BSP and NPT threads?
Yes, we supply them in NPT, BSP, BSPT, and metric thread types.
Can you customize thread length or diameter?
Absolutely. We offer custom machining as per project specs.
Are hex nipples pressure rated?
Yes, available in Class 3000 and 6000 pressure ratings.
