Male Connectors
What are Male Connectors?
Male Connectors are essential instrument fittings used to connect tubing or piping to equipment or other fittings using an external (male) thread. Designed for precision instrumentation systems, they ensure a leak-proof, secure connection under high pressure and temperature conditions.
Asiad Steel Industries is a trusted manufacturer and supplier of high-performance male connectors, offering superior build quality, dimensional accuracy, and material compatibility for mission-critical industrial setups.
Key Features
Leak-Proof
Jointing
Durable
Construction
Easy Installation
& Removal
Wide
Compatibility
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Tubing OD | 1/16” to 2” (OD Tubes), 2 mm to 50 mm (metric sizes) |
| Thread Sizes | NPT, BSPT, BSPP, ISO, SAE, UNF | |
| Pressure Ratings | Working Pressure | Up to 6000 psi (414 bar), depending on size & material |
| Vacuum Rating | Suitable for high vacuum applications | |
| Fitting Types | Instrumentation Tube Fittings | Male Connector, Union, Elbow, Tee, Cross, Bulkhead, Reducer |
| Special Types | Front Ferrule, Back Ferrule, Nuts, Caps, Plugs | |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L, SS 321 |
| Standards & Certifications | ASME / ANSI | ASME B31.3, B16.11 |
| ASTM | ASTM A276, ASTM A479, ASTM A182 (for bar stock) | |
| European Standards | EN 10272, DIN 2353 (for tube fittings) | |
| Certifications | ISO 9001, PED 2014/68/EU, NACE MR0175, IBR Approved | |
| Design Features | Ferrule System | Double Ferrule (Front & Back Ferrule) for leak-proof sealing |
| Thread Options | Tapered (NPT, BSPT) / Parallel (BSPP, ISO) | |
| Connection Type | Tube end (compression) × Male Thread end | |
| Tolerance | As per ASME/ANSI & DIN instrumentation standards | |
| Coating & Surface Finish | Anti-Corrosion Coating | Rust Preventive Oil (for CS & alloy) |
| Optional Coatings | Electropolished, Passivated | |
| Surface Finish | Smooth, Burr-free, Precision-machined | |
| Testing & Inspection | Pressure Testing | Hydrostatic, Pneumatic (bubble test) |
| Non-Destructive Testing | Eddy Current, Ultrasonic (UT) | |
| Destructive Testing | Tensile, Hardness, Impact | |
| Helium Leak Test | Performed on request for high-purity applications |
Dimensions
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
| Nitrogen (N) | — | — | ≤ 0.10 | ≤ 0.10 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 500 – 750 | MPa (Stainless Steel, Brass, Alloy Steel) |
| Yield Strength | 200 – 450 | MPa |
| Hardness | 80 – 200 | HB (Brinell, material-dependent) |
| Elongation | ≥ 18 – 30 | % |
| Density | 7.8 – 8.3 (SS, CS, Alloys) / 8.7 (Monel) / 8.9 (Brass) | g/cm³ |
| Impact Toughness | ≥ 27 – 70 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~200 | GPa (Stainless Steel), ~105 GPa (Brass) |
| Fatigue Strength | 250 – 450 | MPa |
| Corrosion Resistance | Excellent in SS & Alloys, Moderate in CS | – |
| Thermal Conductivity | 15 – 120 | W/m·K (depends on material: SS ~16, Brass ~110) |
| Coefficient of Thermal Expansion | 11 – 19 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.35 – 0.65 | – |
| Poisson’s Ratio | 0.27 – 0.34 | – |
| Brinell Hardness Range | 80 – 200 | HB |
| Surface Finish | Bright Annealed / Passivated / Electro-Polished | – |
| Connection Type | Tube-to-Male Thread (NPT, BSPT, BSPP) | – |
| Operating Temperature Range | -196 to 400 | °C (material-dependent) |
| Pressure Rating | Up to 6000 psi (414 bar) | Industry Standards (ASME, DIN, ISO) |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
| Nitrogen (N) | — | — | ≤ 0.10 | ≤ 0.10 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
Applications of Male Connectors
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
Can male connectors be reused?
What thread sealant is recommended?
Are custom male connectors available?
Are male connectors pressure tested before dispatch?
