What are Stainless Steel 309S Fasteners?
Stainless Steel 309S Fasteners, are a high alloy austenitic stainless steel fastening hardware that are manufactured out of the UNS S30908 grade. Its high chromium and nickel concentration make it resistant to oxidation and scaling, corrosion and thermal fatigue. They can be used for applications in furnaces, heat exchangers, petro-chemical plants, power plants and heat processing industries up to a temperature of 1000°C.
Stainless Steel 309S Fasteners Supplier in India
Stainless Steel 309S fasteners are used as high-temperature resistant fastening elements used for applications requiring superb oxidation resistance, resistance to corrosion, and outstanding mechanical strength. SS 309S, which is a low carbon grade of Grade 309, offers superior weldability and at the same time holds excellent performance at high temperature application.
We manufacture and offer a complete line of Stainless Steel 309S Fasteners including Stainless Steel 309S Nuts & Bolts, SS 309S Stud Bolts, Stainless Steel 309S Threaded Screws, ASTM A193 Stainless Steel 309S Washer, SS 309S Hex Bolt, JIS SUS 309S Hex Bolts, JIS SUS 309S Washers, and Stainless Steel 309S Steel Shoulder Screw for harsh industrial applications.
We are one of the most trusted SS 309S Fasteners Suppliers and DIN 1.4828 anchor bolts manufacturer in Mumbai, India. We offer precision engineered fastening solutions that are in compliance with international ASTM, ASME, DIN, ISO and JIS standards.
Why Choose Stainless Steel 309S Fasteners?
Extreme high temperatures present severe stress on a fastening system and often the overall integrity of the application. The AISI 309S Fasteners were designed with these types of demanding applications in mind.
Major Advantages of Stainless Steel 309S Fasteners
- High temperature oxidation resistance
- Good scaling and thermal cycling resistance
- Corrosion resistant
- Good weldability because of low carbon content
- High tensile and yield strength
- Good creep resistance
- Good service life in harsh environments
- Low replacement and maintenance costs
- Good for continuous and batch operation of heated components
- Good fabrication properties
Combining chromium and nickel, it makes Stainless Steel 309S Fasteners highly reliable and versatile in both high temperature and corrosive environments.
Table of Contents
- ➤ Stainless Steel 309S Fasteners Supplier in India
- ➤ Why Choose Stainless Steel 309S Fasteners?
- ➤ Types of Stainless Steel 309S Fasteners We Supply
- ➤ Stainless Steel 309S Material Specifications
- ➤ Chemical Composition of ASTM A276 Type 309S
- ➤ Mechanical Properties of Stainless Steel 309S Fasteners
- ➤ Applications of Stainless Steel 309S Fasteners
- ➤ Why Industries Prefer AISI 309S Fasteners
- ➤ Stainless Steel 309S Fasteners Supplier in Mumbai, India
Types of Stainless Steel 309S Fasteners We Supply
We offer a complete range of industrial fasteners manufactured according to customer specifications and international standards.
➤ Stainless Steel 309S Nuts
- 309S Stainless Steel Hex Nuts
- Heavy Hex Nuts
- Lock Nuts
- Coupling Nuts
- Slotted Nuts
- Square Nuts
- Flange Nuts
➤ Stainless Steel 309S Bolts
- Stainless Steel 309S Bolts
- SS 309S Hex Bolt
- JIS SUS 309S Hex Bolts
- Carriage Bolts
- Eye Bolts
- Flange Bolts
- U-Bolts
- Structural Bolts
➤ Stainless Steel 309S Screws
- Stainless Steel 309S Threaded Screws
- Socket Head Cap Screws
- Machine Screws
- Self-Tapping Screws
- Set Screws
- UNS S30908 Screw
➤ Stainless Steel 309S Studs
- SS 309S Stud Bolts
- Fully Threaded Studs
- Double End Studs
- Tap End Studs
➤ Stainless Steel 309S Washers
- ASTM A193 Stainless Steel 309S Washer
- JIS SUS 309S Washers
- Plain Washers
- Spring Washers
- Lock Washers
- Tab Washers
➤ Specialty Fasteners
- Stainless Steel 309S Steel Shoulder Screw
- DIN 1.4828 Anchor Bolts
- Foundation Bolts
- Eye Fasteners
- Precision Machined Fasteners
Stainless Steel 309S Material Specifications
| Specification | Details |
|---|---|
| Grade | Stainless Steel 309S |
| UNS Number | UNS S30908 |
| WNR Number | 1.4833 |
| DIN Grade | DIN 1.4833 |
| JIS Grade | JIS SUS 309S |
| ASTM Standard | ASTM A276 Type 309S |
| ASME Standard | ASME SA193 309S Stainless Steel Nuts |
| Material Type | Austenitic Stainless Steel |
Chemical Composition of ASTM A276 Type 309S
| Element | Composition (%) |
|---|---|
| Carbon | 0.08 Max |
| Chromium | 22.0 – 24.0 |
| Nickel | 12.0 – 15.0 |
| Manganese | 2.0 Max |
| Silicon | 1.0 Max |
| Phosphorus | 0.045 Max |
| Sulfur | 0.030 Max |
| Iron | Balance |
Mechanical Properties of Stainless Steel 309S Fasteners
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 205 MPa |
| Elongation | 40% |
| Hardness | 95 HRB Max |
| Density | 7.9 g/cm³ |
| Melting Point | 1400 – 1455°C |
Applications of Stainless Steel 309S Fasteners
Due to their exceptional resistance to oxidation and heat, Stainless Steel 309/309S Nuts, Bolts and Fasteners are widely used across numerous industries.
Industries Served
- Petrochemical Plants
- Oil & Gas Processing
- Power Generation Facilities
- Fertilizer Industries
- Chemical Processing Plants
- Heat Exchanger Manufacturing
- Furnace Construction
- Cement Plants
- Marine Engineering
- Aerospace Components
- Food Processing Equipment
- Thermal Power Stations
Typical Applications
- Furnace Assemblies
- Burner Systems
- Heat Treatment Equipment
- Boiler Installations
- Kilns and Incinerators
- Exhaust Systems
- High Temperature Ducting
- Reformer Tubes
- Pressure Vessels
- Structural Support Systems
Why Industries Prefer AISI 309S Fasteners for High-Temperature Service
The major advantage of AISI 309S Fasteners lies in their ability to retain strength and resist oxidation at temperatures where conventional stainless steels begin to degrade.
The primary advantage is that AISI 309S fasteners are still able to retain their strength and oxidation resistance in environments in which normal stainless steel degrades. They are better than ordinary grades in terms of SS 309S Hex Bolt, SS 309S Stud Bolts such as:
- Better thermal fatigue resistance
- Higher chromium content
- Superior scaling resistance
- Improved service life
- Reduced downtime
- Greater reliability in continuous heating applications
This makes them the preferred choice for critical industrial environments.
Stainless Steel 309S Fasteners Supplier in Mumbai, India
We have been experienced Stainless Steel 309S Fasteners Supplier and have always stocked ready items and manufactured custom fasteners required by Indian & overseas companies. We are able to manufacture both standard and non-standard sizes of fasteners as per drawing/ specifications of the customer as we are a manufacturer ourselves.
We supply products all over India, Middle East, Europe, Southeast Asia, Africa, North America with complete support of the logistics and stable quality of products.
Be it Stainless Steel 309S Nuts & Bolts, ASTM A193 Stainless Steel 309S Washer, JIS SUS 309S Hex Bolts, UNS S30908 Screw, SS 309S Hex Bolt, DIN 1.4828 Anchor Bolts Manufacturer in Mumbai, India we ensure engineered fasteners to cater demanding industrial applications.
Related Stainless Steel Fasteners
We also supply:
- Stainless Steel 304 fasteners
- Stainless Steel 304l Fasteners
- Stainless Steel 304H Fasteners
- Stainless Steel 309 Fasteners
- Stainless Steel 309S Fasteners
- Stainless Steel 309H Fasteners
- Stainless Steel 310 Fasteners
- Stainless Steel 310S Fasteners
- Stainless Steel 310H Fasteners
- Stainless Steel 316 Fasteners
- Stainless Steel 316L Fasteners
- Stainless Steel 316H Fasteners
- Stainless Steel 316TI Fasteners
- Stainless Steel 317 Fasteners
- Stainless Steel 317L Fasteners
- Stainless Steel 321 Fasteners
- Stainless Steel 321H Fasteners
- Stainless Steel 347 Fasteners
- Stainless Steel 347H Fasteners
- Stainless Steel 410 Fasteners
- Stainless Steel 446 Fasteners
- Stainless Steel 904L Fasteners
Frequently Asked Questions
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