Stainless Steel 446 Fasteners are ferritic stainless steel fasteners manufactured from UNS S44600 and are primarily used for high-temperature applications. They offer excellent oxidation resistance, good resistance to scaling and dependable performance in furnace, boiler, heat-treatment, petrochemical and industrial heating equipment.
Stainless Steel 446 Fasteners Supplier | AISI 446 & UNS S44600
Stainless Steel 446 Fasteners are ferritic stainless steel fastening components designed for applications involving elevated temperatures, oxidation and corrosive environments. With high chromium content and excellent resistance to oxidation at high temperatures, SS 446 is commonly selected for furnace, boiler, heat-treatment and high-temperature processing equipment.
Also known as AISI 446, UNS S44600, DIN 1.4762, and EN X10CrAlSi25, this alloy provides reliable performance where conventional stainless steel fasteners may experience rapid oxidation or scaling. Our 446 Stainless Steel Bolts and Nuts are available in different sizes, thread configurations and forms to suit demanding industrial assemblies.
As an experienced SS 446 Fasteners Manufacturer, 446 Stainless Steel Fasteners Supplier and Stainless Steel 446 Fasteners Exporter, we provide standard and customized fasteners with inspection and testing options according to project requirements.
Table of Contents
- ➤ Key Features & Advantages of SS 446 Fasteners
- ➤ Types of Stainless Steel 446 Fasteners
- ➤ Stainless Steel 446 Fasteners Specifications
- ➤ Chemical Composition of SS 446
- ➤ Mechanical Properties of 446 Stainless Steel Fasteners
- ➤ Physical Properties of 446 Stainless Steel Bolts and Nuts
- ➤ Equivalent Grades of Stainless Steel 446
- ➤ Applications of UNS S44600 Fasteners
- ➤ Manufacturing Process of SS 446 Fasteners
- ➤ Why Choose Us as your Werkstoff Nr 1.4762 Screws Suppliers?
Key Features & Advantages of SS 446 Fasteners
Ferritic SS 446 Fasteners are selected mainly for their high-temperature oxidation resistance and dimensional stability.
Key advantages include:
- Excellent resistance to oxidation at elevated temperatures
- High chromium content for improved scaling resistance
- Suitable for high-temperature industrial environments
- Good resistance to thermal cycling
- Good resistance to carburizing and oxidizing atmospheres
- Reliable performance in furnace and heating equipment
- Suitable for customized fastener designs
- Available in metric and imperial dimensions
- Can be supplied with different thread forms and finishes
- Suitable for demanding industrial fastening applications
The combination of ferritic structure and high chromium content makes High Temperature Oxidation Resistant 446 Fasteners particularly useful in environments where fasteners are continuously exposed to heat and air.
Types of Stainless Steel 446 Fasteners
We supply different types of SS 446 Fasteners depending on the application and assembly requirements.
- 446 Stainless Steel Bolts and Nuts
- SS 446 Hex Bolts
- SS 446 Heavy Hex Bolts
- SS 446 Stud Bolts
- ASME SA193 SS 446 Studs
- SS 446 Threaded Rods
- DIN 1.4762 Bolts
- Werkstoff Nr 1.4762 Screws
- ASTM F593 Grade 446 Bolts
- EN X10CrAlSi25 Bolts
- SUS 446 Screws
- SS 446 Washers
- SS 446 U Bolts & Anchor Bolts
- SS 446 Machine Screws
- SS 446 Self-Tapping Screws
- Customized 446 stainless steel fasteners
For special applications, dimensions, thread profiles, head configurations and finishes can be manufactured according to drawings or customer specifications.
Stainless Steel 446 Fasteners Specifications
| Property | Specification |
|---|---|
| Material | Stainless Steel 446 |
| UNS | S44600 |
| AISI | 446 |
| DIN | 1.4762 |
| Werkstoff Number | 1.4762 |
| EN | X10CrAlSi25 |
| Type | Ferritic Stainless Steel |
| Product Forms | Bolts, Nuts, Screws, Studs, Washers, U Bolts, Anchor Bolts |
| Standards | ASTM / ASME / DIN / EN / JIS, as applicable |
| Size | Metric and Imperial |
| Threads | Coarse, Fine and Customized |
| Finish | Plain, Machined or Customized |
| Manufacturing | Cold/Hot Forming, Machining and Customized Production |
Note: Applicable product standards and mechanical requirements should be confirmed according to the specific fastener type, size and purchase specification.
Chemical Composition of SS 446
The chemical composition of UNS S44600 Fasteners is designed to provide high-temperature oxidation and scaling resistance.
| Element | Typical Composition (%) |
|---|---|
| Chromium | 23.0–27.0 |
| Carbon | ≤ 0.20 |
| Manganese | ≤ 1.50 |
| Silicon | ≤ 1.00 |
| Phosphorus | ≤ 0.040 |
| Sulfur | ≤ 0.030 |
| Nitrogen | ≤ 0.25 |
| Iron | Balance |
Values may vary depending on the applicable material specification and product standard. Refer to the certified material test report for exact heat analysis.
Mechanical Properties of 446 Stainless Steel Fasteners
Mechanical properties can vary according to fastener size, manufacturing condition, heat treatment and applicable standard.
| Property | Typical Requirement / Value |
|---|---|
| Tensile Strength | Project/specification dependent |
| Yield Strength | Project/specification dependent |
| Elongation | Project/specification dependent |
| Hardness | Specification dependent |
| Condition | As manufactured / customized |
For critical applications, we can provide material test certificates and inspection documentation corresponding to the ordered specification.
Physical Properties of 446 Stainless Steel Bolts and Nuts
| Physical Property | Typical Value |
|---|---|
| Material Structure | Ferritic |
| Density | ~7.6 g/cm³ |
| Melting Range | ~1510–1540°C |
| Thermal Conductivity | ~24 W/m·K at room temperature |
| Electrical Resistivity | Higher than common austenitic stainless steels |
| Magnetic Response | Magnetic |
| Thermal Expansion | Relatively low compared with austenitic grades |
The low thermal expansion characteristic of ferritic stainless steel can be beneficial in assemblies exposed to repeated temperature changes.
Equivalent Grades of Stainless Steel 446
| Standard | Equivalent / Designation |
|---|---|
| UNS | S44600 |
| AISI | 446 |
| DIN | 1.4762 |
| Werkstoff Nr. | 1.4762 |
| EN | X10CrAlSi25 |
| JIS | SUS 446 |
Equivalent designations should always be verified against the required product standard because chemical, mechanical and dimensional requirements can differ between specifications.
Applications of UNS S44600 Fasteners
The primary advantage of Furnace & Boiler Grade 446 Fasteners is their ability to withstand oxidation and scaling in elevated-temperature environments.
Common applications include:
- Industrial furnaces
- Heat-treatment equipment
- Boiler and heating systems
- Furnace doors and fixtures
- High-temperature burners
- Petrochemical processing equipment
- Thermal processing units
- Industrial ovens
- Heat exchangers
- Power generation equipment
- Kilns and heating chambers
- Chemical processing equipment
- High-temperature exhaust systems
- Refineries and process plants
- Cement and industrial heating equipment
SS 446 U Bolts & Anchor Bolts can also be used for securing high-temperature equipment, supports and structural components where elevated-temperature oxidation resistance is required.
Manufacturing Process of SS 446 Fasteners
Why Choose Us as your Werkstoff Nr 1.4762 Screws Suppliers?
As a reliable SS 446 Fasteners Manufacturer, we focus on supplying products that meet project-specific technical and commercial requirements.
Why customers choose us:- Wide range of stainless steel fasteners
- 40+ years of industry experience
- Manufacturing and sourcing capabilities
- Customized fasteners according to drawings
- Metric and imperial sizes
- Inspection and testing support
- Material Test Certificates available
- Third-party inspection can be arranged
- Export-oriented packaging
- Competitive pricing
- Reliable delivery schedules
- Global supply capability
We understand that high-temperature applications require more than simply selecting a corrosion-resistant alloy. Fastener dimensions, thread engagement, operating temperature, loading conditions and the applicable material standard all need to be considered before final selection.
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
Request a Quote for Stainless Steel 446 Fasteners
Looking for 446 Stainless Steel Bolts and Nuts, studs, screws, U bolts, anchor bolts or customized fastening solutions?
Contact us with your required size, quantity, standard, dimensions and application. Our team can recommend a suitable SS 446 fastener configuration and provide pricing, technical documentation and delivery details.
Frequently Asked Questions About Stainless Steel 446 Fasteners
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