SS 317L Bolts – Global Supplier & Exporter
Aurum Overseas is a trusted Stainless Steel 317L Bolts Supplier & Exporter, delivering premium-quality bolting solutions to industrial buyers across the USA, UAE, Saudi Arabia, and major European markets. Manufactured using low-carbon molybdenum-bearing stainless steel, our SS 317L Bolts are engineered for applications requiring enhanced corrosion resistance in aggressive chemical environments where conventional stainless steel grades may not provide sufficient protection.
Known for their excellent resistance to pitting, crevice corrosion, and chemical attack, UNS S31703 Bolts are widely used in chemical processing facilities, marine systems, pollution control equipment, and pulp and paper industries. The addition of higher molybdenum content compared to standard austenitic grades enables these bolts to perform reliably in chloride-rich and corrosive operating conditions.
As a global exporter, Aurum Overseas supplies 317L Stainless Steel Bolts with complete material traceability, inspection reports, and export-standard packaging to support international procurement requirements. We work closely with EPC contractors, industrial distributors, maintenance teams, and OEM manufacturers seeking certified fastening solutions that comply with international specifications.
With expertise in stainless steel metallurgy, precision manufacturing, and worldwide logistics, Aurum Overseas has established itself as a preferred supplier of ASTM A193 Grade 317L Bolts for critical industrial applications requiring durability, corrosion resistance, and dependable long-term performance.
UNS S31703 Bolts – Product Overview
Stainless Steel 317L Bolts are manufactured from a low-carbon austenitic stainless steel alloy containing higher levels of molybdenum than standard 316 grades. This enhanced chemistry significantly improves resistance to pitting and crevice corrosion, particularly in environments exposed to chlorides, acidic compounds, and industrial contaminants.
The low carbon content of UNS S31703 Bolts minimizes the risk of carbide precipitation during welding, helping preserve corrosion resistance in fabricated assemblies. This characteristic makes SS 317L a preferred material for welded equipment and process systems operating under severe service conditions.
Available in a wide range of configurations, including structural and custom-engineered designs, 317L Stainless Steel Bolts are extensively used in chemical processing plants, marine applications, food processing facilities, pulp and paper industries, and pollution control systems where dependable fastening performance is essential.
Specifications of Stainless Steel 317L Bolts
| Specification | Details |
|---|---|
| Grade | SS 317L |
| UNS Number | UNS S31703 |
| ASTM Standards | ASTM A193 |
| ASME Standards | ASME SA193 / SA194 |
| International Standards | DIN, ASTM, BS and all International Standards |
| Size Range | M3 – M56 | 3/16" – 2" |
| Length | 3 mm – 200 mm |
| Machine Screw Size | M1.6 – M12 |
| Thread Types | UNC, UNF, Metric, BSW, BSF |
| Forms | Bolts, Screws and Custom Fasteners |
| Certification | EN 10204 3.1 / MTC |
| Packaging | Export Standard Packaging |
Mechanical Properties of Stainless Steel 317L Bolts
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa (75 ksi) Min |
| Yield Strength | 205 MPa (30 ksi) Min |
| Elongation | 35% Min |
| Hardness | 95 HRB Max |
| Density | 8.00 g/cm³ |
| Melting Range | 1370–1400°C |
Chemical Composition of SS 317L Bolts
| Element | Composition (%) |
|---|---|
| Carbon | 0.03 Max |
| Chromium | 18.0 – 20.0 |
| Nickel | 11.0 – 15.0 |
| Molybdenum | 3.0 – 4.0 |
| Manganese | 2.0 Max |
| Silicon | 1.0 Max |
| Phosphorus | 0.045 Max |
| Sulfur | 0.03 Max |
| Nitrogen | 0.10 Max |
| Iron | Balance |
Equivalent Grades of UNS S31703 Bolts
| Standard | Equivalent Grade |
|---|---|
| UNS | S31703 |
| ASTM | ASTM A193 Grade 317L |
| ASME | ASME SA193 Grade 317L |
| EN | 1.4438 |
| DIN | X2CrNiMo18-15-4 |
| ISO | SS 317L |
| Common Name | Stainless Steel 317L |
Types of Stainless Steel 317L Bolts Available for Industrial Applications
Industrial systems often require different bolt configurations depending on assembly methods, load requirements, and installation environments. Aurum Overseas supplies a comprehensive range of SS 317L Bolts manufactured to international standards and project-specific requirements.
Bolt Type
| Bolt Type | Typical Applications |
|---|---|
| Hex Head Bolts | Flanges, pressure vessels, and structural assemblies |
| Square Bolts | Industrial machinery and maintenance applications |
| U Bolts | Pipe support and clamping systems |
| Eye Bolts | Lifting and rigging operations |
| T Bolts | Equipment mounting and channel assemblies |
| Hex Bolts | General industrial fastening applications |
| Lag Bolts | Heavy-duty anchoring and support structures |
| Countersunk Bolts | Flush surface installations |
| J Bolts | Foundation and embedded applications |
| Allen Bolts | Precision assemblies and confined spaces |
| Shoulder Bolts | Rotating and pivoting equipment components |
Available Thread Types
| Thread Type | Availability |
|---|---|
| UNC Threads | Available |
| UNF Threads | Available |
| Metric Threads | Available |
| BSW Threads | Available |
| BSF Threads | Available |
| Custom Thread Configurations | Available |
SS 317L Bolts can also be manufactured in customized sizes, thread profiles, and lengths to meet the specific requirements of chemical processing plants, marine installations, and industrial engineering projects requiring corrosion-resistant fastening solutions.
UNS S31703 Bolts Suppliers in Europe for Chemical & Marine Applications
European industries operating in corrosive environments require fastening materials that offer both mechanical reliability and superior resistance to aggressive media. UNS S31703 Bolts are increasingly specified for applications involving chloride exposure, acidic compounds, and demanding process conditions where enhanced corrosion resistance is essential.
Aurum Overseas supplies Stainless Steel 317L Bolts to customers across Germany, France, Italy, Spain, the Netherlands, Belgium, and the United Kingdom. These bolting solutions are widely used in chemical processing facilities, marine equipment, pulp and paper plants, and pollution control systems requiring certified materials and international quality standards. Our export support includes complete documentation, inspection reports, and export-standard packaging to ensure smooth project execution across European markets.
Stainless Steel 317L Bolts Exporters in USA for Industrial Processing Systems
The United States represents a significant market for corrosion-resistant stainless steel bolting solutions used across industrial processing sectors. The superior molybdenum content of SS 317L Bolts makes them particularly suitable for environments where standard austenitic stainless steels may be vulnerable to localized corrosion.
Aurum Overseas exports ASTM A193 Grade 317L Bolts to major industrial hubs including Houston (Texas), Chicago (Illinois), New York, Pennsylvania, California, and Louisiana. Our products support chemical processing facilities, wastewater treatment plants, marine engineering projects, and industrial maintenance operations requiring dependable fastening performance and complete material traceability.
SS 317L Bolts Suppliers in Gulf Countries for Petrochemical Projects
Industrial facilities throughout the Gulf region often operate under harsh environmental conditions involving humidity, salinity, and exposure to corrosive process media. These demanding environments require fastening solutions capable of delivering consistent performance and long service life.
Aurum Overseas supplies 317L Stainless Steel Bolts to UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain for petrochemical plants, desalination facilities, offshore support systems, and industrial processing projects. Our global logistics capabilities and commitment to quality assurance help international buyers procure certified bolting solutions with confidence.
Why Industrial Buyers Choose Aurum Overseas for SS 317L Bolts
Aurum Overseas supports industrial buyers worldwide with premium-quality SS 317L Bolts designed for applications requiring enhanced corrosion resistance and long-term reliability. Our expertise in stainless steel metallurgy and precision manufacturing ensures fastening solutions that meet demanding industrial requirements.
With strong international supply capabilities, technical support, and inspection documentation, we deliver certified UNS S31703 Bolts to EPC contractors, OEM manufacturers, maintenance teams, and procurement specialists seeking dependable products backed by efficient global logistics.
Industries Using UNS S31703 Bolting Solutions
The excellent corrosion resistance of Stainless Steel 317L Bolts makes them suitable for a variety of industries operating under aggressive environmental conditions.
| Industry | Typical Applications |
|---|---|
| Chemical Processing | Reactors, tanks, pipelines, and process equipment |
| Marine & Shipbuilding | Deck hardware, support systems, and offshore assemblies |
| Petrochemical | Corrosion-resistant equipment connections |
| Pulp & Paper | Bleaching and chemical handling systems |
| Pollution Control | Scrubbers and emission treatment equipment |
| Food Processing | Hygienic processing and production equipment |
| Water Treatment | Pumps, filtration units, and piping assemblies |
| Industrial Manufacturing | General corrosion-resistant fastening applications |
SS 317L Bolts Comparison for Corrosion-Resistant Applications
Selecting the appropriate stainless steel grade depends on the operating environment, chloride exposure, and corrosion resistance requirements. The following comparison highlights where SS 317L Bolts offer advantages.
| Property | SS 317L Bolts |
|---|---|
| UNS Number | UNS S31703 |
| Corrosion Resistance | Excellent |
| Molybdenum Content | Higher than 316 grades |
| Pitting Resistance | Superior |
| Crevice Corrosion Resistance | Excellent |
| Weldability | Very Good |
| Chloride Resistance | Enhanced |
| Typical Applications | Chemical, marine, and process industries |
| Material Family | Austenitic Stainless Steel |
While SS 317L Bolts provide improved resistance to chlorides and aggressive chemicals, industrial buyers requiring general-purpose corrosion resistance often evaluate SS 316L Bolts for standard processing applications. For environments involving higher temperatures and stronger acidic media, SS 904L Bolts are also considered due to their enhanced alloy composition and superior resistance to severe corrosive conditions.
Frequently Asked Questions (FAQs)
1. What are Stainless Steel 317L Bolts used for?
SS 317L Bolts are commonly used in chemical processing plants, marine installations, pollution control
equipment, and pulp and paper industries. Their higher molybdenum content provides improved resistance
to pitting and crevice corrosion in aggressive environments.
2. What is UNS S31703?
UNS S31703 is the official material designation for Stainless Steel 317L. It is a low-carbon austenitic
stainless steel developed for enhanced corrosion resistance and improved weldability.
3. Do you export SS 317L Bolts to the USA?
Yes. Aurum Overseas exports ASTM A193 Grade 317L Bolts to industrial regions including Houston, Chicago,
New York, Pennsylvania, California, and Louisiana, supporting chemical plants, industrial processing
facilities, and maintenance operations.
4. Can you supply Stainless Steel 317L Bolts to Europe?
Yes. We regularly export UNS S31703 Bolts to Germany, France, Italy, Spain, Belgium, the Netherlands,
and the United Kingdom. These products are widely used in marine engineering, chemical processing, and
industrial manufacturing applications across Europe.
5. Do you supply SS 317L Bolts in Gulf countries?
Yes. We supply 317L Stainless Steel Bolts to Dubai and Abu Dhabi (UAE), Riyadh and Saudi Arabia, Doha
(Qatar), Oman, Kuwait, and Bahrain for petrochemical, desalination, and industrial projects.
6. What thread types are available in SS 317L Bolts?
We manufacture and supply SS 317L Bolts in UNC, UNF, Metric, BSW, and BSF thread configurations. Custom
thread specifications can also be produced according to customer requirements.
Request a Quote for SS 317L Bolts
Looking for a reliable supplier of Stainless Steel 317L Bolts for corrosive industrial environments? Aurum Overseas offers certified UNS S31703 Bolts manufactured to international standards and tailored to your specific project requirements.
Contact our team today to request pricing, technical assistance, product specifications, or a customized quotation for ASTM A193 Grade 317L Bolts. We support industrial projects worldwide with competitive pricing, dependable quality, and efficient global delivery.
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