SS 321 Flanges exporter
SS 321 Flanges exporter plays a crucial role in supplying high-quality stainless steel components to various industrial sectors worldwide. These flanges are manufactured from SS 321 grade stainless steel, known for its excellent resistance to high temperatures and corrosion, making it ideal for use in demanding environments. The material composition, which includes titanium stabilization, enhances its durability and prevents carbide precipitation, ensuring long-term reliability in service.
The flanges offered come in multiple types such as weld neck, slip-on, blind, and threaded, catering to diverse piping system requirements. Precision-engineered to meet international standards like ASTM A182 and ASME B16.5, these fittings ensure compatibility and safety across various industrial applications. Dimensions and pressure ratings are meticulously maintained to suit high-pressure, high-temperature systems found in petrochemical, power generation, and marine industries.
Applications of these stainless steel flanges range from chemical processing plants to oil refineries and food processing units, where both hygiene and corrosion resistance are paramount. Their ability to withstand thermal cycling and aggressive chemicals makes them indispensable in process piping systems. Additionally, the seamless integration of these components supports efficient maintenance and operational longevity, reducing downtime and operational costs for end users.
Export readiness is a key aspect, with products undergoing rigorous quality checks and certifications to comply with international shipping and trade regulations. Packaging is designed to protect against damage during transit, ensuring the flanges arrive in pristine condition. The supply chain is optimized for timely delivery, supporting global industrial projects with reliable lead times and responsive customer service.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why SS 321 Flanges exporter Are 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 321 Flanges exporter
- 2. How to Choose the Right Manufacturer
- 3.Comparison of SS 321 Flanges exporter
- 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 321 Flanges exporter
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 321 Flanges exporter
| 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 / ASTM / EN |
| Inspection & MTCs | Limited | Inconsistent | EN 10204 3.1 / 3.2 |
| Export Experience | Low | Medium | 50+ countries |
| 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 ferro alloys and metal 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 |
| 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 |
| Favorable Exchange Rate Advantage | Reduced landed cost for international importers |
| In-House Testing & Inspection Facilities | Strict chemical, mechanical & dimensional quality checks |
| 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 |
| Export-Grade Packaging & Global Logistics | Sea-worthy packing, palletization & worldwide shipping support |
| Faster Global Shipping Routes | Optimized logistics for Middle East, Africa & Southeast Asia |
| Technical & After-Sales Support | Project assistance, documentation & responsive RFQ handling |
| Trusted by Global Steel & EPC Companies | Proven export experience across 50+ countries |
Features of SS 321 Flanges
- ✔ Excellent resistance to intergranular corrosion
- ✔ High-temperature strength and oxidation resistance
- ✔ Good weldability and formability
- ✔ Superior mechanical properties over a wide temperature range
- ✔ Effective in reducing chromium carbide precipitation
- ✔ Suitable for applications in the aerospace and chemical industries
Technical Overview of SS 321 Flanges
| Product | Composition | Usage | Standards |
|---|---|---|---|
| SS 321 Flanges | Carbon: ≤0.08%, Chromium: 17.0-19.0%, Nickel: 9.0-12.0%, Titanium: 5x(C+N) min, Manganese: ≤2.0% | Used in high-temperature applications and environments where resistance to corrosion and oxidation is essential. | ASTM A182, ASTM A240, ASME SA182, ASME SA240 |
| SS 321 Flanges | Carbon: ≤0.08%, Chromium: 17.0-19.0%, Nickel: 9.0-12.0%, Titanium: 5x(C+N) min, Manganese: ≤2.0% | Ideal for use in chemical processing plants, oil and gas refineries, and power generation facilities. | ASTM A182, ASTM A240, ASME SA182, ASME SA240 |
| SS 321 Flanges | Carbon: ≤0.08%, Chromium: 17.0-19.0%, Nickel: 9.0-12.0%, Titanium: 5x(C+N) min, Manganese: ≤2.0% | Recommended for applications involving heat exchangers, pressure vessels, and piping systems. | ASTM A182, ASTM A240, ASME SA182, ASME SA240 |
Specifications Table
| Material | Stainless Steel 321 |
|---|---|
| Grades | 321, 321H |
| Standard | ASTM A182, ASME SA182 |
| Size Range | 1/2" to 48" |
| Length | Customizable according to requirements |
| Form | Weld Neck, Slip-On, Blind, Threaded, Socket Weld |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| SS 321 Flanges | Fe, C, Mn, P, S, Si, Cr (17-19%), Ni (9-12%), Ti (5xC min) | Used in high-temperature applications, chemical processing, and aerospace. |
| SS 321H Flanges | Fe, C (max 0.08%), Mn, P, S, Si, Cr (17-19%), Ni (9-12%), Ti (5xC min) | Suitable for applications requiring high strength at elevated temperatures. |
| SS 321/321H Weld Neck Flanges | Fe, C, Mn, P, S, Si, Cr (17-19%), Ni (9-12%), Ti (5xC min) | Ideal for use in pressure vessels and piping systems in high temperature environments. |
| SS 321 Blind Flanges | Fe, C, Mn, P, S, Si, Cr (17-19%), Ni (9-12%), Ti (5xC min) | Used for sealing off the end of a pipe or vessel. |
| SS 321 Socket Weld Flanges | Fe, C, Mn, P, S, Si, Cr (17-19%), Ni (9-12%), Ti (5xC min) | Commonly used in high-pressure applications and for connecting pipes. |
Available Sizes of SS 321 Flanges (MM)
| Size (MM) | Size (MM) |
|---|---|
| 15 | 20 |
| 25 | 32 |
| 40 | 50 |
| 65 | 80 |
| 100 | 125 |
| 150 | 200 |
| 250 | 300 |
| 350 | 400 |
| 450 | 500 |
| 600 | 800 |
Chemical Properties of SS 321
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 17.0 - 19.0 |
| Nickel (Ni) | 9.0 - 12.0 |
| Titanium (Ti) | 5 x C min - 0.6 max |
Mechanical Properties of SS 321
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 520 |
| Yield Strength (MPa) | 205 |
| Elongation (%) | 40 |
| Hardness (Rockwell B) | 90 |
| Modulus of Elasticity (GPa) | 193 |
SS 321 Flanges – Physical & Thermal Properties
Density of SS 321 Flanges
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.99 g/cm³ | 0.288 lb/in³ |
Melting Point of SS 321 Flanges
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1450 - 1510 °C | 2642 - 2750 °F |
Specific Heat of SS 321 Flanges
| Specific Heat of SS 321 Flanges | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Annealed |
| 480 | 100 - 600 | Annealed |
| 460 | 600 - 900 | Annealed |
Electrical Resistivity of SS 321 Flanges
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 73 | 20 | Annealed |
| 75 | 100 | |
| 78 | 200 | |
| 80 | 300 | |
| 82 | 400 | |
Manufacturing Process & Heat Treatment of SS 321 Flanges
Annealing
Annealing of SS 321 flanges is performed to relieve internal stresses and improve ductility. The flanges are heated to a temperature of approximately 1050°C to 1100°C and held for a specified duration before being cooled slowly in a furnace. This process enhances the material's overall mechanical properties and ensures a uniform microstructure.
Forging
The forging process for SS 321 flanges involves heating the stainless steel to a suitable temperature (around 1100°C) and then shaping it using mechanical force. This method improves the strength and toughness of the material by refining the grain structure and ensuring a more uniform distribution of alloying elements.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000 - 1100 | Oil or Water | Increase hardness and strength |
| Tempering | 600 - 800 | Air | Reduce brittleness and improve toughness |
| Stabilization | 800 - 900 | Air | Enhance corrosion resistance and stability |
The proper application of these manufacturing and heat treatment processes ensures that SS 321 flanges meet the stringent requirements for various industrial applications, providing excellent performance and longevity.
Various Types
SS 321 Slip-On Flange
- DN 15 to DN 600
- Annealed
- Used in piping systems for easy installation
SS 321 Weld Neck Flange
- DN 15 to DN 1200
- Hot Finished
- Ideal for high-pressure applications
SS 321 Blind Flange
- DN 15 to DN 400
- Cold Worked
- Used to seal the end of piping systems
SS 321 Socket Weld Flange
- DN 15 to DN 150
- Annealed
- Suitable for high-pressure systems
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
latest Price List of SS 321 Flanges
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| SS 321 Flanges | 3 mm | $5.00 – $6.00 | ₹410 – ₹492 |
| SS 321 Flanges | 6 mm | $5.50 – $7.00 | ₹451 – ₹573 |
| SS 321 Flanges | 10 mm | $6.00 – $8.00 | ₹492 – ₹657 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for SS 321 Flanges.
MOQ & 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
- SS 321 Pipe Supplier
- SS 321 Plate Manufacturer
- SS 321 Fittings Exporter
- SS 321 Bar Stockist
- SS 321 Sheet Distributor
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
