What are Stainless Steel 309H Fasteners?
Stainless Steel 309H Fasteners are high temperature resistant fasteners fabricated from high carbon SS 309 alloy. These are very good in oxidation resistance up to higher temperature, provide enhanced creep strength and good resistance to corrosion. The products normally are SS 309H Nuts (ASTM A193), Stainless Steel 309H Hex bolts (ASTM A193) and SUS 309S / 309H Hex Bolts and so on which include screw, washer, stud and anchor fastener and are applied for power station, refinery, chemical process unit, furnace machinery etc.
Premier Werkstoff Nr. 1.4833 Hex Bolts Stockist
Stainless Steel 309H fasteners is a high-temperature resistant fastening product that is made of a type of austenitic chromium-nickel stainless steel which is particularly suitable for high-temperature services. As these fasteners exhibit great oxidation resistance ability, outstanding creep strength and high-grade corrosion resistance, they are utilized in many industries such as petrochemical industry, power plant, heat exchanger, furnace, refinery and many other industrial manufacturing equipment.
Our company is a specialized manufacturer and supplier of all types of Stainless Steel 309H fasteners, including hex bolts, nuts, screws, washers, threaded rod, anchor fasteners, studs and also engineered fastener solutions. Our fasteners are manufactured to conform to numerous international standards such as ASTM A193, ASTM A182 F309H and JIS SUS 309H standards to provide reliability in challenging working conditions.
As a trusted Stainless Steel 309H Fasteners Supplier and 309H SS fasteners Stockist, we have plenty of Stock and also provide customized solutions in meeting the various demands of projects needing high temperature strength, durability and a long working life.
What Are Stainless Steel 309H Fasteners?
Stainless steel 309H fasteners are highly robust fastening elements created to work under specific high temperature, thermal cycles and corrosive environments. The "H" suffix signifies that the alloy contains elevated carbon percentage which gives them outstanding creep resistance and enhanced high temperature strength as compared to the generic Stainless Steel 309.
The Stainless Steel 309H has increased chromium and nickel content than regular stainless steels thus gives fantastic oxidation and scaling resistance and thermal fatigue resistance. Due to these properties, SS 309H fasteners are ideally utilized in high temperature furnaces, heat treatment machinery, thermal processing plants, and petrochemical industry.
Our product portfolio includes:
- ASTM A193 SS 309H Nuts
- JIS SUS 309H Nuts
- ASTM A193 SS 309H Hex Bolts
- SUS 309S / 309H Hex Bolts
- JIS SUS 309S / 309H Screw
- 309H Stainless Steel Washers
- SS 309H Anchor Fasteners
- Stud Bolts
- Threaded Rods
- U-Bolts
- Eye Bolts
- Socket Head Cap Screws
- Industrial Custom Fasteners
Table of Contents
- ➤ What Are Stainless Steel 309H Fasteners?
- ➤ Key Features of Stainless Steel 309H Fasteners
- ➤ Stainless Steel 309H Fasteners Specifications
- ➤ Chemical Composition of Stainless Steel 309H
- ➤ Mechanical Properties of SS 309H Fasteners
- ➤ Types of Stainless Steel 309H Fasteners We Supply
- ➤ Applications of Stainless Steel 309H Fasteners
- ➤ Why Choose Us as Your Stainless Steel 309H Fasteners Supplier?
Key Features of Stainless Steel 309H Fasteners
- Superior High Temperature Performance: With an increased content of nickel and chromium, the fasteners will remain strong even after extended time periods at high temperatures.
- Outstanding Oxidation Resistance: High performance for applications requiring the steel to be constantly placed in oxidization and scaling environments.
- Excellent Creep Strength: High carbon content will help to withstand creep deformation which is important for a steel that will be continually exposed to heat and stress over time.
- Corrosion Resistance: SS 309H Fasteners offer excellent defense against scaling in the atmosphere, along with oxidizing chemicals.
- Extended Service Life: With the long lasting performance this alloy provides, less maintenance is required, and its durability allows for many years of use.
Stainless Steel 309H Fasteners Specifications
| Specification | Details |
|---|---|
| Grade | Stainless Steel 309H |
| UNS Number | S30909 |
| WNR Number | 1.4833 |
| ASTM Standards | ASTM A193, ASTM A182 F309H |
| JIS Standard | JIS SUS 309H |
| Product Forms | Nuts, Bolts, Washers, Screws, Studs, Threaded Rods |
| Thread Types | Metric, UNC, UNF, BSW |
| Size Range | M3 to M100 and Custom Sizes |
| Length | Custom Cut Lengths Available |
| Finish | Plain, Polished, Passivated, Coated |
| Manufacturing Method | Hot Forged, Cold Forged, CNC Machined |
Chemical Composition of Stainless Steel 309H
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.04 – 0.10 |
| Chromium (Cr) | 22.0 – 24.0 |
| Nickel (Ni) | 12.0 – 15.0 |
| Manganese (Mn) | 2.00 Max |
| Silicon (Si) | 1.00 Max |
| Phosphorus (P) | 0.045 Max |
| Sulfur (S) | 0.030 Max |
| Iron (Fe) | Balance |
Mechanical Properties of SS 309H Fasteners
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa Min |
| Yield Strength | 205 MPa Min |
| Elongation | 40% Min |
| Hardness | 95 HRB Max |
| Density | 7.9 g/cm³ |
| Melting Range | 1399°C – 1454°C |
Types of Stainless Steel 309H Fasteners We Supply
➤ ASTM A193 SS 309H Nuts
These are most commonly utilized for their ability to stand up to the pressure and temperatures in use with high-temperature piping systems, heat exchangers and pressure vessels where long-term performance and consistent thread engagement are important factors.
➤ JIS SUS 309H Nuts
Manufactured using Japanese Industrial Standards, these nuts perform as the connection point of thermal and industrial processing systems.
➤ ASTM A193 SS 309H Hex Bolts
Ideal for construction in furnaces, power generation, and refinery facilities these heavy-duty fasteners are valued for their superior strength qualities.
➤ SUS 309S / 309H Hex Bolts
Suitable for applications requiring resistance to oxidation and thermal fatigue under extreme operating conditions.
➤ JIS SUS 309S / 309H Screw
Precision-manufactured screws available in multiple thread configurations and dimensional standards.
➤ 309H Stainless Steel Washers
Used to distribute load evenly and prevent damage to connected surfaces in high-temperature environments.
➤ SS 309H Anchor Fasteners
Engineered to reliably provide support when the installation requirements include heavy-duty structural anchoring.
Applications of Stainless Steel 309H Fasteners
Why Choose Us as Your Stainless Steel 309H Fasteners Supplier?
As an experienced SS 309H Industrial Fasteners Manufacturer, we focus on delivering products that meet international quality standards and demanding industrial requirements.
Our advantages include:
- Comprehensive inventory availability
- Strict quality inspection procedures
- Material traceability documentation
- Custom manufacturing capabilities
- Competitive pricing
- Global export expertise
- Fast delivery schedules
- Technical support from industry specialists
- Third-party inspection support
- Mill Test Certificates (MTC) supplied upon request
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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