SS 310 NPT Hex Nipple
Last Updated: July 2026
Quick Answer
SS 310 NPT Hex Nipple is a stainless steel hex nipple manufactured with NPT threads at both ends, used to join two NPT-threaded ports directly. Manufactured to ASME B16.11 and MSS SP-95.
SS 310 NPT Hex Nipple is a hex nipple manufactured specifically with NPT (National Pipe Tapered) threads at both ends, used to join two NPT-threaded ports or fittings, the standard thread form across North America and much of the global oil and gas industry.
Manufactured from stainless steel grade 310, these hex nipples contain 24-26% chromium and 19-22% nickel, giving excellent resistance to oxidation and scaling at sustained high temperatures up to 1150°C. The hex flats machined into the middle of the nipple allow a wrench to grip and tighten the fitting without damaging the threads at either end.
Manufactured to ASME B16.11 and MSS SP-95 with NPT threads to ASME B1.20.1, these hex nipples are supplied in banded or unbanded patterns and are dimensionally interchangeable with NPT-threaded valves, gauges, and instrumentation fittings already installed on site.
International buyers across the Middle East, Europe, and North America source SS 310 NPT Hex Nipple from India for its combination of factory pricing, consistent quality, and export documentation support.
Choosing an experienced Indian manufacturer for SS 310 NPT Hex 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 310 NPT Hex 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 310 NPT Hex Nipple
- 2. How to Choose the Right Manufacturer
- 3.Comparison of SS 310 NPT Hex 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 310 NPT Hex 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 310 NPT Hex Nipple Suppliers
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited | None | Full in-house / audited partners |
| International Standards | Basic | Depends on source | ASME B16.11, MSS SP-95 |
| Pricing Transparency | Variable | Often marked-up | Direct factory pricing |
| Lead Time Reliability | Unpredictable | Depends on stock | Committed lead times with stock backup |
| 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 |
|---|---|
| ISO 9001:2015 Certified Manufacturing | Consistent quality with documented QA systems and process control |
| Bulk Stock & High Production Capacity | Fast order fulfillment and stable supply for large projects |
| Custom Sizes & Drawing-Based Manufacturing | Products manufactured exactly to buyer specifications |
| Consistent Batch-to-Batch Quality | Heat-number traceability from raw material to finished product |
| Dedicated Export Documentation Team | Smooth customs clearance with accurate, complete commercial paperwork |
| In-House Testing & Inspection Facilities | Strict chemical, mechanical & dimensional quality checks |
| Flexible International Payment Terms | T/T, Letter of Credit (sight/usance), and SWIFT options for buyers |
| ASME / ASTM / EN Compliant Products | Globally accepted standards with EN 10204 3.1 / 3.2 MTCs |
| Lower Manufacturing & Sourcing Costs | Save up to 15–20% compared to European suppliers |
Features of SS 310 NPT Hex Nipple
- ✔ NPT threads at both ends per ASME B1.20.1
- ✔ Hex flats allow wrench tightening without thread damage
- ✔ Available in banded and unbanded patterns
- ✔ Dimensionally interchangeable with standard NPT fittings
- ✔ Reducing (mixed thread size) nipples available
- ✔ Compliance with ASME B16.11 / MSS SP-95
Technical Overview of SS 310 NPT Hex Nipple
| Product | Thread Standard | Usage | Standards |
|---|---|---|---|
| SS 310 NPT Hex Nipple | NPT (ASME B1.20.1) | Threaded pipe and instrumentation connections | ASME B16.11, MSS SP-95 |
Specifications Table
| Material | Stainless Steel 310 |
|---|---|
| Grades | ASTM A182 (forged), ASTM A479 (bar) |
| Standard | ASME B16.11, MSS SP-95 |
| Thread Standard | NPT (ASME B1.20.1) |
| Size Range | 1/8" to 4" NPT |
| Form | Banded or Unbanded Hex Nipple |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| SS 310 NPT Hex Nipple | Stainless Steel 310 | General process piping, instrumentation panels |
| SS 310 NPT Hex NippleL | Low Carbon variant | Welded assemblies, corrosive service |
Available Sizes of SS 310 NPT Hex Nipple
| Size | Size |
|---|---|
| 1/8" | 1/4" |
| 3/8" | 1/2" |
| 3/4" | 1" |
| 1-1/4" | 2" |
Chemical Properties of SS 310 NPT Hex Nipple
| Element | Composition (%) |
|---|---|
| Iron (Fe) | 50.50 - 54.20 |
| Chromium (Cr) | 24.00 - 26.00 |
| Nickel (Ni) | 19.00 - 22.00 |
| Manganese (Mn) | 2.00 |
| Silicon (Si) | 1.50 |
| Carbon (C) | 0.25 |
| Phosphorus (P) | 0.045 |
| Sulfur (S) | 0.030 |
Mechanical Properties of SS 310 NPT Hex Nipple
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 205 MPa |
| Elongation | 40% (min) |
| Hardness | 95 HRB |
| Modulus of Elasticity | 200 GPa |
SS 310 NPT Hex Nipple – Physical & Thermal Properties
Density of SS 310 NPT Hex Nipple
| Property | Metric | Imperial |
|---|---|---|
| Density | 7,900 kg/m³ | 0.285 lb/in³ |
Melting Point of SS 310 NPT Hex Nipple
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,400 - 1,450 °C | 2,552 - 2,642 °F |
Specific Heat of SS 310 NPT Hex Nipple
| Specific Heat of SS 310 NPT Hex 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 310 NPT Hex 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 310 NPT Hex Nipple
| Standard | Designation |
|---|---|
| UNS | S31000 |
| Werkstoff / DIN EN | 1.4845 (X8CrNi25-21) |
| JIS | SUS310S |
| BS | 310S24 |
| AISI | 310 |
Manufacturing Process & Heat Treatment of SS 310 NPT Hex Nipple
Annealing
SS 310 NPT Hex Nipple bar stock is solution-annealed before machining to relieve internal stresses and ensure consistent hardness across the hex flats and threaded ends.
Forging
Forged SS 310 NPT Hex Nipple nipples are hot-forged from stainless steel bar stock, then precision-machined to cut the hex flats and NPT threads to ASME B1.20.1 tolerances.
Hardening & Tempering
| Process | Purpose |
|---|---|
| Solution Annealing | Restore corrosion resistance and ductility before machining |
| Thread Cutting | Precision NPT threads to ASME B1.20.1 |
| Stress Relieving | Relieve residual stresses from machining |
Consistent heat treatment and precision thread-cutting ensure every SS 310 NPT Hex Nipple seals reliably when torqued into a mating NPT port.
Various Types
SS 310 NPT Hex Nipple (Banded)
- Dimensions: 1/8" to 4" NPT
- Condition: ASME B16.11
- Applications: General process piping
SS 310 NPT Hex Nipple (Unbanded)
- Dimensions: 1/8" to 4" NPT
- Condition: ASME B16.11
- Applications: Tight-clearance panels
SS 310 NPT Hex Nipple (Reducing)
- Dimensions: Mixed sizes each end
- Condition: ASME B16.11
- Applications: Joining two different port sizes
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 310 NPT Hex Nipple – Latest Price
Pricing for SS 310 NPT Hex 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
