SS 321 Hex bolt exporter
SS 321 Hex bolt exporter specializes in providing high-quality stainless steel fasteners designed for demanding industrial applications. Manufactured from stainless steel grade 321, these hex bolts offer exceptional resistance to corrosion and high temperatures, making them ideal for use in harsh environments such as chemical processing, aerospace, and automotive industries. The austenitic stainless steel composition, enhanced with titanium, ensures excellent mechanical properties and durability, meeting stringent international standards.
These hexagonal head bolts are precision-engineered with metric and imperial threading options to suit various assembly requirements. Available in multiple diameters and lengths, the fasteners are designed for easy installation using standard tools, ensuring reliable and secure fastening. The hex bolts feature a smooth finish and consistent threading, contributing to superior joint integrity and long service life under cyclic loading and thermal stress conditions.
Widely used in applications requiring high strength and oxidation resistance, the fasteners are suitable for mounting components in exhaust systems, heat exchangers, and furnace parts. Their ability to withstand elevated temperatures up to 870°C without losing mechanical strength makes them indispensable in power generation and petrochemical sectors. Additionally, these bolts are compatible with a range of nuts and washers, facilitating comprehensive fastening solutions.
Export readiness is a key advantage, with suppliers adhering to international quality certifications such as ISO 9001 and ASTM standards. Packaging is designed to protect the bolts during transit, ensuring they arrive in pristine condition at global destinations. Reliable supply chain management and prompt delivery schedules support industrial buyers requiring bulk orders for large-scale projects.
Industrial purchasers seeking robust and heat-resistant fastening solutions will find these stainless steel hex bolts meet a broad spectrum of technical and regulatory requirements. The exporter’s commitment to quality assurance, coupled with flexible customization options, makes these fasteners a preferred choice for critical infrastructure and manufacturing operations worldwide.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why SS 321 Hex bolt 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 Hex bolt exporter
- 2. How to Choose the Right Manufacturer
- 3.Comparison of SS 321 Hex bolt 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 Hex bolt 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 Hex bolt 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 Hex Bolt
- ✔ Excellent corrosion resistance in high-temperature environments
- ✔ Superior mechanical properties for enhanced strength
- ✔ Good weldability and formability for versatile applications
- ✔ Stability in non-oxidizing environments, such as sulfuric acid
- ✔ High creep resistance at elevated temperatures
- ✔ Availability in various sizes and specifications to meet project needs
Technical Overview of SS 321 Hex Bolt
| Product | Composition | Usage | Standards |
|---|---|---|---|
| SS 321 Hex Bolt | Stainless Steel 321 (Fe, C, Cr, Ni, Ti) | Used in high-temperature applications and environments prone to corrosion | ASTM A193, ASTM A320, ASME SA-193 |
| SS 321 Hex Bolt | Stainless Steel 321 (Fe, C, Cr, Ni, Ti) | Common in chemical processing and oil & gas industries | ISO 3506-1, DIN 933 |
| SS 321 Hex Bolt | Stainless Steel 321 (Fe, C, Cr, Ni, Ti) | Applications requiring good weldability and resistance to intergranular corrosion | ASTM F593, ASTM F594 |
Specifications Table
| Material | Stainless Steel 321 |
|---|---|
| Grades | ASTM A193, ASTM A320 |
| Standard | ISO 3506-1 |
| Size Range | M5 to M30 |
| Length | 10 mm to 300 mm |
| Form | Hexagonal Head |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| SS 321 Hex Bolt | Fe, Cr (17-19%), Ni (9-12%), C (max 0.08%), Mn (max 2%), Si (max 1%), P (max 0.045%), S (max 0.03%) | Aerospace, Automotive, Chemical processing, Oil and gas, Marine applications |
| SS 321H Hex Bolt | Fe, Cr (17-19%), Ni (9-12%), C (0.04-0.10%), Mn (max 2%), Si (max 1%), P (max 0.045%), S (max 0.03%) | High-temperature applications, Petrochemical industry, Power generation |
| SS 321L Hex Bolt | Fe, Cr (17-19%), Ni (9-12%), C (max 0.03%), Mn (max 2%), Si (max 1%), P (max 0.045%), S (max 0.03%) | Food processing, Pharmaceutical industry, Dairy processing |
| SS 321Ti Hex Bolt | Fe, Cr (17-19%), Ni (9-12%), Ti (0.5-1.0%), C (max 0.08%), Mn (max 2%), Si (max 1%), P (max 0.045%), S (max 0.03%) | High-stress applications, Chemical storage tanks, Heat exchangers |
| SS 321S Hex Bolt | Fe, Cr (17-19%), Ni (9-12%), C (max 0.08%), Mn (max 2%), Si (max 1%), P (max 0.045%), S (max 0.03%) | Architecture, Structural applications, Marine engineering |
Available Sizes of SS 321 Hex Bolt (MM)
| Size (MM) | Size (MM) |
|---|---|
| 6 | 8 |
| 10 | 12 |
| 16 | 20 |
| 24 | 30 |
| 36 | 42 |
| 48 | 56 |
| 60 | 70 |
| 80 | 90 |
| 100 | 110 |
| 120 | 130 |
Chemical Properties of SS 321 Hex Bolt
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.03 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 17.0 - 19.0 |
| Nickel (Ni) | 9.0 - 12.0 |
| Titanium (Ti) | 5 x C min - 0.70 max |
Mechanical Properties of SS 321 Hex Bolt
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 520 - 750 |
| Yield Strength (MPa) | 205 |
| Elongation (%) | 40 |
| Hardness (HB) | 207 |
| Modulus of Elasticity (GPa) | 193 |
SS 321 Hex bolt exporter – Physical & Thermal Properties
Density of SS 321 Hex bolt exporter
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.95 g/cm³ | 0.287 lb/in³ |
Melting Point of SS 321 Hex bolt exporter
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1450 - 1510 °C | 2642 - 2750 °F |
Specific Heat of SS 321 Hex bolt exporter
| Specific Heat of SS 321 Hex bolt exporter | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 460 | 100 - 600 | Heating |
| 420 | 600 - 1000 | High Temperature |
Electrical Resistivity of SS 321 Hex Bolt
| 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 Hex Bolt
Annealing
Annealing of SS 321 hex bolts is performed to relieve internal stresses and improve ductility. The process involves heating the bolts to a temperature range of 1020-1120°C, followed by controlled cooling. This treatment enhances the material's workability and helps in achieving a uniform microstructure.
Forging
Forging is a key manufacturing step for SS 321 hex bolts, where heated steel is shaped into desired forms using mechanical force. The forging process enhances the mechanical properties of the bolts by refining the grain structure and improving strength. Typically, forging temperatures range from 950-1200°C.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000-1100 | Oil | To increase hardness and strength of the material. |
| Tempering | 600-800 | Air | To reduce brittleness and improve toughness. |
| Stress Relieving | 400-600 | Air | To relieve residual stresses from the manufacturing process. |
The combination of these processes ensures that SS 321 hex bolts meet stringent quality standards, providing excellent performance in various applications, especially in environments requiring resistance to corrosion and high temperatures.
Various Types
SS 321 Hex Bolt - M6
- Dimensions: M6 x 20mm, M6 x 30mm
- Condition: Annealed
- Applications: Aerospace, Chemical Processing
SS 321 Hex Bolt - M8
- Dimensions: M8 x 25mm, M8 x 40mm
- Condition: Pickled and Passivated
- Applications: Oil and Gas Industry, Marine Applications
SS 321 Hex Bolt - M10
- Dimensions: M10 x 30mm, M10 x 50mm
- Condition: Cold Worked
- Applications: Construction, Automotive
SS 321 Hex Bolt - M12
- Dimensions: M12 x 40mm, M12 x 60mm
- Condition: Hot Forged
- Applications: Heavy Machinery, Power Generation
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 Hex Bolt
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| SS 321 Hex Bolt | 3 mm | $2.50 – $3.00 | ₹205 – ₹246 |
| SS 321 Hex Bolt | 6 mm | $2.80 – $3.30 | ₹230 – ₹270 |
| SS 321 Hex Bolt | 10 mm | $3.00 – $3.50 | ₹246 – ₹287 |
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 Hex Bolt.
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 Hex bolt manufacturer
- SS 321 fasteners supplier
- Stainless steel hex bolts exporter
- SS 321 bolt specifications
- SS 321 hex bolt price list
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
