Stainless Steel 904L Bolts Supplier & Exporter
Aurum Overseas is a leading Stainless Steel 904L Bolts Supplier & Exporter, delivering premium-quality fastening solutions to customers across the USA, UAE, Saudi Arabia, and major European markets. Manufactured from a high-alloy austenitic stainless steel, SS 904L Bolts are specifically designed for aggressive corrosive environments where conventional stainless steel grades may not provide adequate performance.
Recognized for their exceptional resistance to pitting, crevice corrosion, and reducing acids, UNS N08904 Bolts are widely utilized in chemical processing facilities, offshore installations, pollution control systems, and marine environments. The addition of nickel, molybdenum, and copper enhances the material's ability to withstand highly corrosive media, particularly sulfuric acid and chloride-containing environments.
Aurum Overseas supplies ASTM A193 Grade 904L Bolts with complete material traceability, inspection reports, and export-standard packaging to support international procurement requirements. We cater to EPC contractors, industrial distributors, maintenance teams, and OEM manufacturers seeking certified bolting solutions for critical service applications.
With extensive export experience and stringent quality assurance practices, we have established ourselves as a trusted supplier of 904L Stainless Steel Bolts for projects requiring long-term reliability, superior corrosion resistance, and dependable global delivery support.
UNS N08904 Bolts – Product Overview
Stainless Steel 904L Bolts are manufactured from a low-carbon, high-alloy austenitic stainless steel containing elevated levels of nickel, chromium, molybdenum, and copper. This carefully balanced composition provides outstanding resistance to corrosion in both oxidizing and reducing environments.
Unlike standard austenitic grades, UNS N08904 Bolts offer significantly improved resistance to chloride-induced pitting and crevice corrosion. Their excellent resistance to sulfuric acid makes them particularly valuable in chemical processing applications where equipment reliability and service life are critical considerations.
The low carbon content of 904L Stainless Steel Bolts also improves weldability while minimizing carbide precipitation during fabrication. As a result, these bolts are widely used in industries where corrosion resistance, fabrication flexibility, and mechanical reliability are equally important.
Common applications include chemical processing plants, desalination facilities, offshore platforms, pharmaceutical production units, pulp and paper equipment, flue gas desulfurization systems, and marine installations exposed to harsh operating conditions.
Specifications of Stainless Steel 904L Bolts
| Specification | Details |
|---|---|
| Product | Stainless Steel 904L Bolts |
| Material Grade | SS 904L |
| UNS Number | UNS N08904 |
| ASTM Standards | ASTM A193 |
| ASME Standards | ASME SA193 / SA194 |
| International Standards | DIN, ASTM, BS and all International Standards |
| Bolt Size | M3 – M56 |
| Imperial Sizes | 3/16" – 2" |
| Custom Sizes | Available |
| Available 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 904L Bolts
The excellent corrosion resistance of UNS N08904 Bolts is supported by strong mechanical characteristics that allow these fasteners to perform reliably in demanding industrial environments.
| Property | Value |
|---|---|
| Tensile Strength | 490 MPa Min |
| Yield Strength | 220 MPa Min |
| Elongation | 35% Min |
| Hardness | 90 HRB Max |
| Density | 8.00 g/cm³ |
| Melting Range | 1300 – 1390°C |
These mechanical properties ensure reliable performance in demanding corrosive environments.
Chemical Composition of SS 904L Bolts
The superior performance of 904L Stainless Steel Bolts is primarily attributed to their high-alloy chemical composition, which enhances resistance to acids and chloride attack.
| Element | Composition (%) |
|---|---|
| Carbon | 0.020 Max |
| Chromium | 19.0 – 23.0 |
| Nickel | 23.0 – 28.0 |
| Molybdenum | 4.0 – 5.0 |
| Copper | 1.0 – 2.0 |
| Manganese | 2.0 Max |
| Silicon | 1.0 Max |
| Phosphorus | 0.045 Max |
| Sulfur | 0.035 Max |
| Iron | Balance |
The high nickel and molybdenum content provides exceptional resistance to pitting and crevice corrosion in aggressive environments.
Equivalent Grades of UNS N08904 Bolts
International projects often reference equivalent material standards depending on regional engineering requirements.
| Standard | Equivalent Grade |
|---|---|
| UNS | N08904 |
| ASTM | ASTM A193 Grade 904L |
| ASME | ASME SA193 Grade 904L |
| EN | 1.4539 |
| DIN | X1NiCrMoCu25-20-5 |
| JIS | SUS 890L |
| Common Name | Stainless Steel 904L |
These equivalent designations help procurement teams align project specifications across different global markets.
Types of Stainless Steel 904L Bolts Available for Corrosive Applications
Industrial systems operating in aggressive environments require fastening solutions designed to deliver both structural integrity and superior corrosion resistance. Aurum Overseas supplies a complete range of SS 904L Bolts suitable for various installation requirements.
Bolt Type
| Bolt Type | Typical Applications |
|---|---|
| Hex Head Bolts | Chemical processing equipment and flanges |
| Square Bolts | Industrial maintenance applications |
| U Bolts | Marine and desalination pipe supports |
| Eye Bolts | Lifting assemblies in corrosive environments |
| T Bolts | Equipment mounting systems |
| Hex Bolts | General industrial fastening |
| Lag Bolts | Heavy-duty anchoring applications |
| Countersunk Bolts | Flush-fit installations |
| J Bolts | Foundation and embedded structures |
| Allen Bolts | Precision industrial assemblies |
| Shoulder Bolts | Rotating equipment applications |
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 |
Aurum Overseas can also manufacture 904L Stainless Steel Bolts in custom diameters, thread profiles, and lengths according to project specifications and engineering drawings. These customized fastening solutions are widely used in offshore installations, chemical processing systems, marine applications, and pollution control equipment requiring long-term corrosion resistance.
UNS N08904 Bolts Suppliers in Europe for Chemical Processing & Pollution Control Applications
European industries operating in highly corrosive environments require fastening solutions capable of delivering long-term reliability and reduced maintenance costs. With their exceptional resistance to reducing acids and chloride attack, UNS N08904 Bolts have become a preferred choice for chemical processing plants, pollution control systems, and marine engineering projects.
Aurum Overseas supplies Stainless Steel 904L Bolts to customers across Germany, France, Italy, Spain, the Netherlands, Belgium, and the United Kingdom. These fastening solutions are widely used in sulfuric acid handling systems, flue gas desulfurization units, offshore installations, and pharmaceutical production facilities. Each shipment is supported by inspection reports, material traceability, and export-standard packaging to meet international procurement requirements.
Stainless Steel 904L Bolts Exporters in USA for Offshore & Chemical Industries
The USA remains one of the largest consumers of high-alloy stainless steel fastening solutions used in aggressive industrial environments. The superior corrosion resistance of SS 904L Bolts makes them particularly valuable in sectors where equipment failure can result in significant operational and maintenance costs.
Aurum Overseas exports ASTM A193 Grade 904L Bolts to customers throughout the USA, supporting offshore operations, chemical manufacturing plants, pharmaceutical facilities, pulp and paper mills, and environmental engineering projects. Our products are manufactured according to international standards and supplied with complete quality documentation to ensure compliance with customer specifications.
SS 904L Bolts Suppliers in Gulf Countries for Desalination & Petrochemical Projects
Industrial facilities throughout the Gulf region operate under challenging conditions involving chloride exposure, aggressive chemicals, and demanding service environments. Fastening materials selected for these applications must provide outstanding corrosion resistance and dependable service life.
Aurum Overseas exports 904L Stainless Steel Bolts to the UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain for desalination plants, petrochemical facilities, offshore installations, marine infrastructure projects, and industrial processing systems. Our global logistics capabilities enable timely deliveries supported by technical assistance and project documentation.
Why Industrial Buyers Choose Aurum Overseas for SS 904L Bolts
Aurum Overseas supplies premium-quality SS 904L Bolts engineered for industries operating in highly corrosive environments. Our expertise in high-alloy stainless steel fastening solutions enables us to provide products that deliver excellent resistance to pitting, crevice corrosion, and acid attack.
We maintain strict quality assurance procedures and support our customers with complete traceability documentation, dimensional accuracy, and responsive technical assistance. From standard requirements to project-specific manufacturing, we help EPC contractors, OEM manufacturers, industrial distributors, and procurement teams source dependable fastening solutions with confidence.
With efficient export logistics, competitive pricing, and a commitment to international standards, Aurum Overseas continues to be a trusted partner for organizations seeking reliable UNS N08904 Bolts for critical industrial applications.
Industries Using UNS N08904 Bolting Solutions
The superior corrosion resistance of Stainless Steel 904L Bolts makes them suitable for industries exposed to aggressive chemicals and chloride-rich environments.
| Industry | Typical Applications |
|---|---|
| Chemical Processing | Acid handling systems and reactors |
| Offshore & Marine | Offshore platforms and marine equipment |
| Desalination | Water treatment and desalination plants |
| Petrochemical | Corrosive process equipment |
| Pharmaceutical | Hygienic production systems |
| Pulp & Paper | Bleaching and chemical recovery units |
| Pollution Control | Flue gas desulfurization systems |
| Food Processing | Corrosion-sensitive production equipment |
SS 904L Bolts Comparison for Corrosive Applications
Selecting the appropriate fastening material depends on the severity of the service environment, exposure to chemicals, and expected service life. The following comparison highlights why SS 904L Bolts are frequently chosen for aggressive applications.
| Property | Value |
|---|---|
| UNS Number | UNS N08904 |
| Stainless Steel Family | Austenitic |
| Primary Advantage | Exceptional corrosion resistance |
| Chloride Resistance | Excellent |
| Sulfuric Acid Resistance | Excellent |
| Pitting Resistance | Superior |
| Crevice Corrosion Resistance | Superior |
| Weldability | Excellent |
| Typical Applications | Chemical plants, desalination, offshore systems |
| Service Environment | Highly corrosive conditions |
Industrial buyers requiring resistance to elevated temperatures often evaluate SS 446 Bolts for oxidation-intensive applications. For projects where high mechanical strength and wear resistance are more important than corrosion resistance, SS 410 Bolts may also be considered depending on the operating environment and performance requirements.
Frequently Asked Questions
1. What are Stainless Steel 904L Bolts used for?
SS 904L Bolts are widely used in chemical processing plants, offshore installations, desalination
facilities, pharmaceutical manufacturing, and pollution control systems where superior corrosion
resistance is required.
2. What is UNS N08904?
UNS N08904 is the material designation for Stainless Steel 904L, a high-alloy austenitic stainless steel
containing elevated levels of nickel, molybdenum, and copper for enhanced resistance to aggressive
corrosive environments.
3. Do you export SS 904L Bolts internationally?
Yes. Aurum Overseas exports Stainless Steel 904L Bolts to the USA, UAE, Saudi Arabia, Qatar, Oman,
Kuwait, and Bahrain, supported by inspection reports and export documentation.
4. Why are SS 904L Bolts preferred in chemical industries?
The high nickel, molybdenum, and copper content of UNS N08904 Bolts provides outstanding resistance to
sulfuric acid, chloride attack, pitting, and crevice corrosion, making them ideal for harsh chemical
environments.
5. What thread types are available in SS 904L Bolts?
We manufacture 904L Stainless Steel Bolts with UNC, UNF, Metric, BSW, and BSF thread profiles. Custom
thread configurations can also be supplied according to customer specifications.
6. Can you export Stainless Steel 904L Bolts to Germany and other European
countries?
Yes. We regularly supply UNS N08904 Bolts to Germany, France, Italy, Spain, the Netherlands, Belgium,
and the United Kingdom for chemical handling systems, pollution control equipment, and marine
applications.
Request a Quote for SS 904L Bolts
Looking for a reliable supplier of Stainless Steel 904L Bolts for aggressive industrial environments? Aurum Overseas offers certified UNS N08904 Bolts manufactured to international standards and customized to your exact specifications.
Contact our team today to request pricing, technical guidance, product specifications, or a tailored quotation for ASTM A193 Grade 904L Bolts. We support industrial projects worldwide with competitive pricing, dependable quality, complete documentation, and efficient global delivery.
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