SS 304 Barrel Nipple
Last Updated: July 2026
Quick Answer
SS 304 Barrel Nipple is a plain stainless steel pipe nipple with no hex flats, used for close-clearance connections where a hex nipple would not fit. Manufactured to ASME B36.10/19 with NPT or BSP threads.
SS 304 Barrel Nipple is a plain, straight pipe nipple with no hex flats – a smooth cylindrical body with male threads at both ends – used where clearance does not allow a wrench to grip a hex nipple, or where the nipple passes through a close-fitting bushing, coupling, or bulkhead.
Manufactured from stainless steel grade 304, these barrel nipples contain 18-20% chromium and 8-10.5% nickel, giving reliable corrosion resistance and strength for general industrial and process piping use. Without hex flats, the smooth body allows the nipple to pass through tight-clearance holes and couplings that a hex nipple's wider profile would not fit through.
Manufactured to ASME B36.10/19 pipe dimensions with NPT or BSP threads to ASME B1.20.1 or BS 21 at both ends, barrel nipples are typically installed using pipe wrenches gripping the pipe body itself, or are welded into position rather than torque-tightened via hex flats.
International buyers across the Middle East, Europe, and North America source SS 304 Barrel Nipple from India for its combination of factory pricing, consistent quality, and export documentation support.
Choosing an experienced Indian manufacturer for SS 304 Barrel Nipple 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 Barrel Nipple 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 Barrel Nipple
- 2. How to Choose the Right Manufacturer
- 3.Comparison of SS 304 Barrel Nipple 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 Barrel Nipple 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 Barrel Nipple Suppliers
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited | None | Full in-house / audited partners |
| After-Sales Technical Support | Minimal | None | Dedicated technical support |
| Custom Sizes / Drawing Support | Rare | Limited | Full custom manufacturing to drawing |
| Pricing Transparency | Variable | Often marked-up | Direct factory pricing |
| 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 |
|---|---|
| Dedicated Export Documentation Team | Smooth customs clearance with accurate, complete commercial paperwork |
| ASME / ASTM / EN Compliant Products | Globally accepted standards with EN 10204 3.1 / 3.2 MTCs |
| Trusted by Global Steel & EPC Companies | Proven export experience across 50+ countries |
| Favorable Exchange Rate Advantage | Reduced landed cost for international importers |
| Bulk Stock & High Production Capacity | Fast order fulfillment and stable supply for large projects |
| Responsive RFQ Turnaround | Detailed quotations typically issued within 1 hour |
| Long-Term Supply Partnerships | Repeat-order clients across multiple continents |
| Custom Sizes & Drawing-Based Manufacturing | Products manufactured exactly to buyer specifications |
| Lower Manufacturing & Sourcing Costs | Save up to 15–20% compared to European suppliers |
Features of SS 304 Barrel Nipple
- ✔ Smooth body with no hex flats for close-clearance installation
- ✔ Passes through tight-fitting bushings, couplings, and bulkheads
- ✔ NPT or BSP male threads at both ends
- ✔ Available in standard and long-pattern lengths
- ✔ Suitable for pipe-wrench installation or welding in place
- ✔ Compliance with ASME B36.10/19 pipe dimension standards
Technical Overview of SS 304 Barrel Nipple
| Product | Composition | Usage | Standards |
|---|---|---|---|
| SS 304 Barrel Nipple | Stainless Steel 304 | Close-clearance pipe connections, bulkhead pass-throughs | ASME B36.10/19 |
Specifications Table
| Material | Stainless Steel 304 |
|---|---|
| Grades | ASTM A312, ASTM A182 |
| Standard | ASME B36.10/19 |
| Thread Standard | NPT (ASME B1.20.1) or BSP (BS 21) |
| Size Range | 1/8" to 4" |
| Form | Plain Barrel Nipple, no hex flats |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| SS 304 Barrel Nipple | Stainless Steel 304 | Close-clearance and bulkhead pipe connections |
| SS 304 Barrel NippleL | Low Carbon variant | Welded installations, corrosive service |
Available Sizes of SS 304 Barrel Nipple
| Size | Size |
|---|---|
| 1/8" | 1/4" |
| 3/8" | 1/2" |
| 3/4" | 1" |
| 1-1/4" | 2" |
Chemical Properties of SS 304 Barrel Nipple
| 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 Barrel Nipple
| Property | Value |
|---|---|
| Tensile Strength | 520 MPa |
| Yield Strength | 215 MPa |
| Elongation | 40% (min) |
| Hardness | 95 HRB |
| Modulus of Elasticity | 193 GPa |
SS 304 Barrel Nipple – Physical & Thermal Properties
Density of SS 304 Barrel Nipple
| Property | Metric | Imperial |
|---|---|---|
| Density | 8,000 kg/m³ | 0.289 lb/in³ |
Melting Point of SS 304 Barrel Nipple
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,400 - 1,500 °C | 2,552 - 2,732 °F |
Specific Heat of SS 304 Barrel Nipple
| Specific Heat of SS 304 Barrel Nipple | ||
|---|---|---|
| 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 Barrel Nipple
| 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 Barrel Nipple
| Standard | Designation |
|---|---|
| UNS | S30400 |
| Werkstoff / DIN EN | 1.4301 (X5CrNi18-10) |
| JIS | SUS304 |
| BS | 304S31 |
| AISI | 304 |
Manufacturing Process & Heat Treatment of SS 304 Barrel Nipple
Annealing
SS 304 Barrel Nipple sections are cut from solution-annealed seamless or welded stainless steel pipe, preserving corrosion resistance across the full length of the plain body.
Forging
Unlike hex nipples, barrel nipples are not forged – they are machined directly from pipe stock, with threads cut at both ends per ASME B1.20.1 (NPT) or BS 21 (BSP).
Hardening & Tempering
| Process | Purpose |
|---|---|
| Solution Annealing | Restore corrosion resistance and ductility of pipe stock |
| Thread Cutting | Precision NPT/BSP threads at both ends |
| Stress Relieving | Relieve residual stresses from cutting and threading |
Because barrel nipples have no hex flats to absorb installation torque, thread quality and pipe wall thickness are closely controlled to avoid deformation during pipe-wrench installation.
Various Types
SS 304 Barrel Nipple (Standard Length)
- Dimensions: 1/8" to 4"
- Condition: ASME B36.10/19
- Applications: Standard close-coupling connections
SS 304 Barrel Nipple (Long Pattern)
- Dimensions: Extended length
- Condition: ASME B36.10/19
- Applications: Bulkhead and panel pass-throughs
SS 304 Barrel Nipple (Close Nipple)
- Dimensions: Minimal exposed thread
- Condition: ASME B36.10/19
- Applications: Tight-space direct coupling
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 Barrel Nipple – Latest Price
Pricing for SS 304 Barrel Nipple 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
