35CrMoA Alloy Steel Black Oxide Double End Stud for Pressure Vessel Flanges
35CrMoA alloy steel black oxide double end stud for pressure vessel flanges is a high-strength fastening component designed for pressure equipment, flange connections, and heavy-duty industrial applications. The 35CrMoA alloy steel black oxide double end stud for pressure vessel flanges is manufactured from 35CrMoA chromium-molybdenum alloy steel, providing excellent tensile strength, toughness, and reliable clamping performance.
The 35CrMoA alloy steel black oxide double end stud for pressure vessel flanges is widely used in pressure vessels, petrochemical equipment, boilers, heat exchangers, pipelines, and industrial machinery where stable fastening under high load conditions is required.
Product Overview
The 35CrMoA alloy steel black oxide double end stud for pressure vessel flanges is a threaded fastening component with threads on both ends, designed specifically for flange connection systems. It is commonly used together with nuts and washers to provide strong and uniform clamping force.
Compared with ordinary carbon steel studs, the 35CrMoA alloy steel black oxide double end stud for pressure vessel flanges offers higher strength and better fatigue resistance after heat treatment. The black oxide surface finish provides a uniform appearance and improves basic corrosion protection for controlled environments.
This type of double end stud is commonly selected for pressure equipment manufacturers, engineering contractors, petrochemical facilities, and industrial maintenance applications.
Product Specifications
| Item | Description |
|---|---|
| Product Name | 35CrMoA Alloy Steel Black Oxide Double End Stud for Pressure Vessel Flanges |
| Material | 35CrMoA Alloy Steel |
| Stud Type | Double End Stud |
| Application | Pressure Vessel Flange Connection |
| Thread Type | Threaded Both Ends |
| Thread Standard | Metric / Customized |
| Diameter Range | According to Design Requirement |
| Length Range | Customized |
| Thread Direction | Right Hand |
| Surface Finish | Black Oxide |
| Heat Treatment | Quenching and Tempering |
| Strength Grade | According to 35CrMoA Material Requirement |
| Packaging | Bundle / Carton / Wooden Case |
| Customization | Size, thread, packaging available |
Technical Parameters
| Parameter | Value |
|---|---|
| Material | 35CrMoA Alloy Steel |
| Alloy Type | Chromium-Molybdenum Steel |
| Tensile Strength | According to Material Requirement |
| Yield Strength | According to Material Requirement |
| Hardness | Controlled After Heat Treatment |
| Fatigue Resistance | Excellent |
| Surface Treatment | Black Oxide |
| Temperature Performance | Suitable for Pressure Equipment Applications |
| Manufacturing Standard | Customized / Drawing Based |
Materials and Manufacturing Process
The 35CrMoA alloy steel black oxide double end stud for pressure vessel flanges is manufactured through controlled alloy steel processing, precision machining, heat treatment, and surface finishing procedures.
- Raw material selection: High-quality 35CrMoA alloy steel
- Material inspection: Chemical composition verification and material certification
- Cutting process: Preparation of stud blanks according to specifications
- Thread processing: Precision machining or thread rolling for accurate thread profiles
- Heat treatment: Quenching and tempering to improve strength and toughness
- Black oxide treatment: Creates a uniform protective surface finish
- Inspection: Thread gauge inspection, dimensional measurement, hardness testing, and surface inspection
- Packaging: Industrial protective packaging for transportation
Each 35CrMoA alloy steel black oxide double end stud for pressure vessel flanges is produced under strict quality control to ensure reliable fastening performance.
Applications of the Product
The 35CrMoA alloy steel black oxide double end stud for pressure vessel flanges is widely used in industries requiring high-strength flange fastening:
- Pressure vessel industry: Equipment flange connections
- Petrochemical industry: Reactors, pipelines, and processing units
- Power generation: Boilers, heat exchangers, and energy equipment
- Chemical industry: Industrial process systems
- Oil and gas industry: High-load fastening applications
- Machinery manufacturing: Heavy equipment assemblies
- Industrial plants: Pressure system installation
- Engineering projects: Customized structural connections
Its high-strength alloy steel construction makes it suitable for critical fastening applications.
Why Choose This Product
- 35CrMoA high-strength alloy steel material
- Suitable for pressure vessel flange applications
- Excellent mechanical strength after heat treatment
- Reliable clamping performance
- Black oxide finish improves surface protection
- Good fatigue resistance
- Stable thread accuracy
- Suitable for heavy-duty industrial use
- OEM customization support
The 35CrMoA alloy steel black oxide double end stud for pressure vessel flanges provides a dependable fastening solution for demanding equipment connections.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.
- Experience with alloy steel double end stud manufacturing
- Support for pressure equipment fastening products
- Advanced machining and heat treatment capability
- Material traceability and quality control
- OEM/ODM customization support
- Stable production capacity for bulk supply
- Global export experience
- Engineering support for customized requirements
Flybear provides reliable fastening products for pressure vessels, petrochemical equipment, machinery, and industrial customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout production:
- 35CrMoA material chemical composition analysis
- Raw material certificate verification
- Heat treatment process inspection
- Tensile strength testing
- Hardness testing
- Thread gauge inspection
- Dimensional accuracy inspection
- Black oxide surface inspection
- Packaging quality inspection
All manufacturing processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting a 35CrMoA alloy steel black oxide double end stud for pressure vessel flanges, consider:
- Pressure vessel design requirements
- Stud diameter and length
- Thread specification
- Operating temperature
- Required clamping force
- Surface protection requirements
Correct selection ensures safe fastening performance and long service life.
FAQ
1. What is a 35CrMoA alloy steel double end stud used for?
It is used for pressure vessel flange connections and other high-strength industrial fastening applications.
2. Why choose 35CrMoA alloy steel?
35CrMoA provides high strength, good toughness, and reliable performance after heat treatment.
3. What is the purpose of black oxide treatment?
Black oxide provides a uniform surface finish and improves basic corrosion protection.
4. Can this double end stud be customized?
Yes, Flybear supports customized dimensions, threads, heat treatment requirements, and packaging.
5. Which industries use 35CrMoA flange studs?
They are commonly used in pressure vessels, petrochemical, chemical, power generation, and industrial equipment.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.
