316L Stainless Steel Flat Washers
316L stainless steel flat washers are essential components in various industrial and mechanical applications, providing enhanced support and load distribution for threaded fasteners. Known for their superior corrosion resistance and strength, these flat washers are manufactured from low-carbon 316L stainless steel, making them ideal for harsh environments, especially those involving corrosive elements such as saltwater, chemicals, and high humidity.
Product Overview
316L stainless steel flat washers are round metal disks with a central hole to accommodate the threaded shaft of a fastener. Their primary function is to distribute the load of a bolt or nut on a surface, helping to prevent damage and minimize the risk of loosening due to vibration or movement. With superior anti-corrosion properties and high durability, these washers are widely used in the marine, chemical, and food processing industries.
Product Specifications
| Specification Item | Description |
|---|---|
| Product Name | 316L Stainless Steel Flat Washer |
| Standard | DIN 125 / ISO 7089 |
| Grade | 316L Stainless Steel |
| Hardness | 200HV |
| Surface Finish | Plain |
| Inner Diameter Range | M2 – M160 |
| Outer Diameter Range | Custom per standard or request |
| Thickness | 0.5mm – 5mm |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | ≥515 MPa |
| Yield Strength | ≥205 MPa |
| Elongation | ≥40% |
| Hardness | 200HV |
| Temperature Resistance | Up to 870°C |
| Corrosion Resistance | Excellent in marine environments |
Material Introduction and Manufacturing Process
316L stainless steel is an austenitic, low-carbon grade steel renowned for its extraordinary resistance to corrosion, pitting, and crevice corrosion, especially in chloride environments. It contains molybdenum, which significantly enhances its corrosion resistance compared to 304 stainless steel.
The manufacturing process of 316L stainless steel flat washers includes the following steps:
- Material Selection: Choose high-purity 316L stainless steel.
- Blanking: Cut disks from the stainless steel plate.
- Hole Punching: Create central holes using CNC-controlled punches.
- Deburring: Smooth edges for consistency and safety.
- Heat Treatment: Improve mechanical properties and relieve stress.
- Surface Finish: Polished or machined as per customer requirements.
- Inspection & Packaging: Quality checked and packed appropriately.
Typical Applications and Industries
316L stainless steel flat washers are commonly used in:
- Marine hardware, shipbuilding
- Offshore oil and gas platforms
- Chemical processing plants
- Pharmaceutical production equipment
- Food and beverage processing facilities
- Water treatment machinery
- Cleanroom installations
Product Advantages & Competitive Edge
Superior Material:
Manufactured from premium 316L stainless steel, our washers offer exceptional durability, even in the most aggressive environments.
Precision Manufacturing:
Advanced CNC technologies and strict tolerance control ensure dimensional accuracy and tight fits with bolt assemblies.
Advanced Surface Finishing:
Highly resistant to rust and corrosion due to natural passivation and potential electropolishing or machined surfaces.
Customization Capability:
Flybear Fastener supports OEM and ODM services, allowing for the development of unique washer sizes and designs based on your drawings or specifications.
Reliable Supply Chain:
With large inventory stock and optimized logistics, we ensure fast and timely deliveries for urgent project needs.
Trusted Technical Support:
Our team provides end-to-end guidance with timely after-sales services and full documentation support.
Inspection and Quality Control
Every batch of washers undergoes stringent inspection procedures, including:
- Dimensional accuracy checks with precision instruments
- Material certification analysis (MTC)
- Hardness and tensile testing
- Surface roughness and finish quality check
- Corrosion resistance tests for compliance with international standards
These quality control measures assure compliance with ISO and DIN specifications.
Selection and Purchasing Guide for Flat Washers
When selecting the right washer for your application, consider the following factors:
- Application environment (corrosive, high-load, or hygienic)
- Size and thickness based on bolt dimensions
- Required regulatory compliance (e.g. ROHS, REACH)
- Surface finish preferences
- Load-bearing capacity
- Delivery timeline and batch quantity
For marine applications, always opt for 316L stainless over 304 due to better chloride resistance. Selecting the correct washer promotes longer-lasting assemblies and reduces replacement costs over time.
Looking to streamline your procurement process? Choose from our wide range of fastener products and partner with us for reliable performance.
Conclusion and Company Introduction
As a professional manufacturer, Flybear Fastener specializes in precision-engineered washers and bolts designed to meet rigorous industry demands. We pride ourselves on offering comprehensive engineering support and customized solutions to help our clients extend product life and reduce maintenance costs.
We always adhere to our philosophy of “Quality First, Customer Foremost” and are committed to delivering high-quality fastener products and one-stop solutions.
Feel free to contact us to learn more about our 316L stainless steel fast washers or request a free quote for bulk orders or project-specific solutions today.
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