SS 304 Connector Manufacturer
Last Updated: July 2026
Quick Answer
SS 304 Connector is a double-ferrule compression fitting that joins stainless steel tubing to a threaded NPT or BSP port. Manufactured to ASTM A479 and ASME B31.3.
SS 304 Connector Manufacturer joins stainless steel instrumentation tubing directly to a threaded port – a valve, manifold, gauge, or transmitter connection – using double-ferrule compression technology on the tube side and a male or female NPT/BSP thread on the port side. It is one of the most widely specified fittings in instrumentation and process piping systems.
Manufactured from SS 304 austenitic stainless steel (18-20% chromium, 8-10.5% nickel), these connectors deliver a metal-to-metal seal without welding, allowing tube runs to be assembled and disassembled for maintenance without cutting or re-welding the line. The two-ferrule design maintains a leak-tight joint even under vibration and repeated thermal cycling.
Available as straight male connectors, female connectors, union connectors (tube-to-tube), bulkhead connectors (panel-mounted), and reducing connectors (joining two different tube sizes), manufactured to ASTM A479 and ASME B31.3 and dimensionally compatible with standard double-ferrule tube fitting systems already installed on site.
International buyers across the Middle East, Europe, and North America source SS 304 Connector from India for its combination of factory pricing, consistent quality, and export documentation support.
Choosing an experienced Indian manufacturer for SS 304 Connector gives buyers worldwide access to competitive pricing, ready stock, and technical support without a trading intermediary.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why SS 304 Connector Is Preferred by Global Buyers
- ✔ Factory Pricing: Direct manufacturer rates with bulk stock
- ✔ Certified Quality: ISO & 3rd-party tested, EN 10204 certified
- ✔ Export-Ready: Sea-worthy packaging for on-time delivery
- ✔ Fast RFQs: Quick quotes for custom sizes & quantities
- ✔ Traceability: 100% heat number tracking from raw material to finished product
Trusted by industries like oil & gas, petrochemicals, power, marine, and heavy engineering.
- Manufacturing Capacity: 500 MT / Month
- Export Experience: 15+ Years
- Countries Served: 50+
- Annual Export Volume: 5,500 MT
Table of Contents
- 1. What is SS 304 Connector
- 2. How to Choose the Right Manufacturer
- 3.Comparison of SS 304 Connector Suppliers
- 4. Why Global Buyers Source from Jainam Ferro Alloys
- 5. Features
- 6. Technical Overview
- 7. Specifications
- 8. Available Grades
- 9. Available Sizes
- 10. Chemical Properties
- 11. Mechanical Properties
- 12. Physical & Thermal Properties
- 13. Electrical Resistivity
- 14. Equivalent Grades
- 15. Manufacturing Process & Heat Treatment
- 16. Various Types
- 17. Applications & Uses
- 18. Industries We Serve
- 19. Latest Price List
- 20. MOQ & Payment Terms
- 21. Export Packaging & Shipping
- 22. Cities We Supply in India
- 23. Countries We Export Worldwide
- 24. Our Certifications
- 25. Quality Inspection & Testing
- 26. Our Other Product Types
- 27. People Also Search For
- 28. Frequently Asked Questions
- 29. About Jainam Ferro Alloys
How to Choose the Right SS 304 Connector Manufacturer
India is home to hundreds of manufacturers ranging from small job shops to large ISO-certified exporters. International and domestic buyers typically evaluate manufacturers based on quality compliance, production capacity, export experience, and pricing transparency.
- Certification & international standards (ASME, ASTM, EN)
- Manufacturing capability vs trading activity
- Export documentation & inspection support
- Stock availability & lead time reliability
- Past supply experience in oil & gas, EPC & heavy industries
Comparison Factors Among SS 304 Connector Suppliers
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited | None | Full in-house / audited partners |
| Custom Sizes / Drawing Support | Rare | Limited | Full custom manufacturing to drawing |
| After-Sales Technical Support | Minimal | None | Dedicated technical support |
| Inspection & MTCs | Limited | Inconsistent | EN 10204 3.1 / 3.2 |
| Risk for EPC Projects | High | Medium | Low |
International buyers typically prefer ISO-certified manufacturers for large-scale or critical applications due to better quality control, documentation, and lower project risk.
Why Global Buyers Choose Jainam Ferro Alloys
Jainam Ferro Alloys is a trusted ISO 9001:2015 certified manufacturer and global exporter of stainless & carbon steel products, supplying consistent, high-quality materials to customers across USA, UK, Europe, Middle East, Africa, and Asia-Pacific. Our focus on quality assurance, cost efficiency, and on-time delivery makes us a preferred sourcing partner for international buyers.
| Key Advantage | Buyer Benefit |
|---|---|
| Custom Sizes & Drawing-Based Manufacturing | Products manufactured exactly to buyer specifications |
| ISO 9001:2015 Certified Manufacturing | Consistent quality with documented QA systems and process control |
| ASME / ASTM / EN Compliant Products | Globally accepted standards with EN 10204 3.1 / 3.2 MTCs |
| Bulk Stock & High Production Capacity | Fast order fulfillment and stable supply for large projects |
| Faster Global Shipping Routes | Optimized logistics for Middle East, Africa & Southeast Asia |
| Long-Term Supply Partnerships | Repeat-order clients across multiple continents |
| Consistent Batch-to-Batch Quality | Heat-number traceability from raw material to finished product |
| Technical & After-Sales Support | Project assistance, documentation & responsive RFQ handling |
| Responsive RFQ Turnaround | Detailed quotations typically issued within 1 hour |
Features of SS 304 Connector
- ✔ Metal-to-metal double-ferrule seal, no welding required
- ✔ Assembles and disassembles for maintenance without cutting the tube
- ✔ Dimensionally compatible with standard tube fitting systems
- ✔ Available as male, female, union, bulkhead, and reducing connectors
- ✔ NPT and BSP thread options on the port side
- ✔ Compliance with international standards for quality and safety
Technical Overview of SS 304 Connector
| Product | Composition | Usage | Standards |
|---|---|---|---|
| SS 304 Connector | 18% Chromium, 8% Nickel, 0.08% Carbon | Tube-to-port connections in instrumentation systems | ASTM A479, ASME B31.3 |
| SS 304L Connector | 18% Chromium, 8% Nickel, 0.03% Carbon | Welded manifold assemblies and corrosive service | ASTM A479, ASME B31.3 |
| SS 304H Connector | 18% Chromium, 8% Nickel, 0.04-0.10% Carbon | High-temperature instrumentation lines | ASTM A479, ASME B31.3 |
Specifications Table
| Material | Stainless Steel 304 |
|---|---|
| Grades | ASTM A479, ASTM A269 |
| Standard | ASME B31.3, MSS SP-83 |
| Size Range | 1/8" to 2" tube OD with matching NPT/BSP port thread |
| Seal Type | Double-ferrule metal-to-metal compression |
| Form | Male, Female, Union, Bulkhead, Reducing Connector |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| SS 304 Connector | 18% Chromium, 8% Nickel | Instrumentation tubing, general industrial piping |
| SS 304L Connector | 18% Chromium, 8% Nickel, Low Carbon | Welded manifold assemblies, chemical processing |
| SS 304H Connector | 18% Chromium, 8% Nickel, High Carbon | High-temperature instrumentation lines, power plants |
| SS 304LN Connector | 18% Chromium, 8% Nickel, Nitrogen-enhanced | High-stress applications, cryogenic services |
| SS 304M Connector | 18% Chromium, 8% Nickel, Molybdenum | Marine applications, oil and gas industry |
Available Sizes of SS 304 Connector (MM)
| Size (MM) | Size (MM) |
|---|---|
| 3 | 4 |
| 6 | 8 |
| 10 | 12 |
| 15 | 20 |
| 25 | 32 |
Chemical Properties of SS 304 Connector
| Element | Composition (%) |
|---|---|
| Iron (Fe) | 66.00 - 74.00 |
| Chromium (Cr) | 18.00 - 20.00 |
| Nickel (Ni) | 8.00 - 10.50 |
| Manganese (Mn) | 2.00 |
| Silicon (Si) | 1.00 |
| Carbon (C) | 0.08 |
| Phosphorus (P) | 0.045 |
| Sulfur (S) | 0.030 |
Mechanical Properties of SS 304 Connector
| Property | Value |
|---|---|
| Tensile Strength | 520 MPa |
| Yield Strength | 215 MPa |
| Elongation | 40% (min) |
| Hardness | 95 HRB |
| Modulus of Elasticity | 193 GPa |
SS 304 Connector – Physical & Thermal Properties
Density of SS 304 Connector
| Property | Metric | Imperial |
|---|---|---|
| Density | 8,000 kg/m³ | 0.289 lb/in³ |
Melting Point of SS 304 Connector
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,400 - 1,500 °C | 2,552 - 2,732 °F |
Specific Heat of SS 304 Connector
| Specific Heat of SS 304 Connector | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 600 | 100 - 500 | High Temperature |
| 700 | 500 - 1,000 | Very High Temperature |
Electrical Resistivity of SS 304 Connector
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.72 | 20 | Annealed |
| 0.73 | 100 | |
| 0.75 | 200 | |
| 0.77 | 300 | |
| 0.80 | 400 | |
Equivalent Grades of SS 304 Connector
| Standard | Designation |
|---|---|
| UNS | S30400 |
| Werkstoff / DIN EN | 1.4301 (X5CrNi18-10) |
| JIS | SUS304 |
| BS | 304S31 |
| AISI | 304 |
Manufacturing Process & Heat Treatment of SS 304 Connector
Annealing
Connector bodies are machined from solution-annealed SS 304 bar stock (annealed at 1010°C to 1120°C) to ensure the ferrules seat and deform predictably during assembly, producing a consistent, repeatable compression seal.
Forging
Connector bodies and hex nuts are forged from SS 304 bar stock at 1100°C to 1200°C before precision machining, ensuring the threaded port and ferrule-bearing surfaces meet tight dimensional tolerances.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1040 - 1100 | Water or Oil | Increase hardness and strength |
| Tempering | 300 - 600 | Air | Reduce brittleness and improve toughness |
| Stress Relieving | 600 - 700 | Air | Relieve residual stresses from machining |
Precision machining after heat treatment ensures the ferrule-bearing bore and thread dimensions stay within tolerance, so every connector seals reliably on first assembly.
Various Types
SS 304 Male Connector
- Dimensions: 1/8" to 2" tube OD, NPT/BSP male port
- Condition: ASTM A479, ASME B31.3
- Applications: Valve and manifold port connections
SS 304 Female Connector
- Dimensions: 1/8" to 2" tube OD, NPT/BSP female port
- Condition: ASTM A479, ASME B31.3
- Applications: Instrument and gauge port connections
SS 304 Union Connector
- Dimensions: 1/8" to 2" tube OD, tube-to-tube
- Condition: ASTM A479, MSS SP-83
- Applications: Joining two tube runs of the same size
SS 304 Bulkhead Connector
- Dimensions: 1/8" to 1" tube OD, panel-mounted
- Condition: ASTM A479, ASME B31.3
- Applications: Panel and enclosure pass-through connections
Applications & Uses
- Oil & Gas Industry
- Petrochemical Plants
- Water Treatment Plants
- Pharmaceutical Industry
- Food & Beverage Industry
- Automobile Industry
Industries We Serve
Our alloys are widely used across:
- Steel Plants
- Foundries & Casting Units
- Automobile Industry
- Shipbuilding & Marine
- Oil & Gas
- Engineering Components
- Heavy Industrial Machinery
SS 304 Connector – Latest Price
Pricing for SS 304 Connector depends on size, grade, quantity, and delivery location. Share your requirement using the form or WhatsApp button on this page and our team will respond with a factory quotation within 1 hour.
Request Latest PriceMOQ & Payment Terms
Minimum Order Quantity: 25–100 Kg depending on part size and grade.
Payment Terms: Depending On Grade and Quantity Size
Export Packaging & Shipping
- Seaworthy, fumigated wooden crates with waterproof inner lining
- Palletised packing with clear shipping marks and heat number identification
- Container stuffing supervision with loading photographs available on request
Cities We Suppllied In India
| Supply Cities | |||||
|---|---|---|---|---|---|
| Mumbai | Delhi | Pune | Chennai | Hyderabad | Bengaluru |
| Ahmedabad | Rajkot | Coimbatore | Kolkata | Bhopal | Surat |
We exported to 50+ countries worldwide.
| Exported Countries | |||||
|---|---|---|---|---|---|
| USA | UK | UAE | Germany | South Africa | Australia |
| Italy | Canada | Netherlands | Qatar | Saudi Arabia | Malaysia |
Our Certifications
We are a certified manufacturer and exporter, committed to strict quality control and international compliance standards. Below are our key certifications.
Compliance
ISO 14001:2015
Importer Exporter
ISO 45001:2018
ISO 9001:2015
Udyam Registration
Quality Inspection & Testing
At Jainam Ferro Alloys, all products are checked through strict quality inspection and testing to meet international standards such as ASTM, ASME, EN, and DIN. This ensures consistent quality, accurate dimensions, and full material traceability.
- ✔ Chemical composition testing
- ✔ Mechanical tests such as tensile and hardness
- ✔ Dimensional inspection as per standard tolerances
- ✔ PMI, ultrasonic, and visual inspection (if required)
- ✔ EN 10204 3.1 / 3.2 test certificates
- ✔ Third-party inspection by SGS, TUV, BV, or Lloyd’s
Our quality systems support reliable supply for oil & gas, petrochemical, power, marine, and heavy engineering projects.
People Also Search For
Frequently Asked Questions
About JAINAM FERRO ALLOYS
- ✔ Decades of experience in stainless steel, carbon steel, and alloy steel manufacturing
- ✔ ISO 9001:2015 certified company ensuring strict quality control standards
- ✔ Specialized in cold drawn pipes and tubes processing
- ✔ State-of-the-art manufacturing facilities with modern machinery
- ✔ Precision-engineered products with consistent quality and reliability
- ✔ Customized steel solutions as per client drawings and specifications
- ✔ Compliance with international industry standards
- ✔ Trusted supplier for critical industrial applications worldwide
