ANSI B16.5 Class 150 Flange
Types Available:
SO (Slip-On), WN (Weld Neck), BL (Blind), SW (Socket Weld), TH (Threaded), LJ (Lap Joint).
Material Grades:
Carbon Steel: ASTM A105 (Standard) or custom
Stainless Steel: ASTM A182 F304/L, F316/L, F321.
Sealing Faces: Raised Face (RF), Flat Face (FF).
Surface Treatment: Anti-rust Oil, Black Paint, or Hot-Dipped Galvanized.
- Free Samples
- Quality Assurance
- 24/7 Customer Service
Product Introduction
ANSI B16.5 Class 150 Flange - Premium Industrial Pipe Connectors
ANSI B16.5 Class 150 Flange Manufacturer
Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd. brings over 40 a long time of industry mastery to convey premium ANSI B16.5 class 150 flange arrangements. Our cutting edge 7,000+ square meter office produces ribs with 285 PSI working weight rating at encompassing temperature. With yearly deals surpassing RMB 100 million and month to month shipments outperforming 50 holders, we ensure solid supply for your basic ventures. Our Course 150 spines serve requesting applications over worldwide vitality sectors.
ANSI B16.5 Class 150 Flange Overview
The Flange speaks to the industry standard for low-to-medium weight pipe associations. These ribs give solid joining arrangements for channels, valves, pumps, and gear over different mechanical applications.
Our Course 150 flanges convey steady execution in water, oil, and gas benefit situations. You'll discover these connectors fundamental for building strong channeling frameworks that meet worldwide guidelines. Each spine experiences thorough quality testing to guarantee long-lasting execution in your applications.





Key Features & Advantages
Universal Compatibility: Your product components coordinated consistently with standard valves and pumps around the world. This compatibility disposes of association issues and streamlines establishment processes.
Cost-Effective Plan: The optimized fabric conveyance diminishes weight whereas keeping up auxiliary astuteness. You advantage from lower fabric costs without compromising execution quality.
Stockist Neighborly: Tall showcase request makes these ribs fundamental stock things. You can depend on reliable accessibility for quick venture requirements.
Proven Unwavering quality: Decades of fruitful applications illustrate the tried and true execution you require for basic mechanical systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Pressure Rating | 150 PSI (Nominal) |
| Size Range | 1/2" to 24" |
| Standard | ANSI/ASME B16.5 |
| Flange Types | Slip-On (SO), Weld Neck (WN), Blind (BL), Threaded (TH) |
| Facing Options | Raised Face (RF), Flat Face (FF) |
| Working Pressure | ~285 PSI at ambient temperature |
| Temperature Range | -29°C to 400°C |
| Bolt Pattern | ANSI B16.5 standard |
Standards & Certifications
Your flanges comply with comprehensive international standards:
- ANSI/ASME B16.5
- ASTM specifications
- ISO 9001 quality management
- CE certification
- GOST-R approval





Chemical Composition & Mechanical Properties
Carbon Steel Grade A105
- Carbon: 0.35% max
- Manganese: 0.60-1.05%
- Phosphorus: 0.035% max
- Sulfur: 0.040% max
- Silicon: 0.10-0.35%
Mechanical Properties
- Tensile Strength: 485 MPa min
- Yield Strength: 250 MPa min
- Elongation: 22% min
Manufacturing Process
Our advanced manufacturing ensures superior quality:
- Material Selection: Premium grade steel undergoes chemical analysis
- Forging Process: High-pressure forging creates optimal grain structure
- Machining: Precision CNC machining achieves exact dimensions
- Heat Treatment: Controlled heating optimizes mechanical properties
- Quality Testing: Comprehensive inspection validates performance standards

Surface Finish & Coating Options
Standard Finishes:
- Machine finish (125-250 μin Ra)
- Anti-rust oil coating
- Black painting
Optional Coatings:
- Hot-dip galvanizing
- Epoxy coating
- Zinc plating
Applications
Your ANSI B16.5 class 150 flange serves assorted mechanical sectors:
- Water treatment facilities
- Oil and gas pipelines
- Chemical handling plants
- Power era systems
- HVAC installations
- Food preparing equipment
- Marine applications
- Building services

Packaging & Delivery
We ensure your venture through cautious packaging:
- Individual plastic packs for little flanges
- Wooden cases for bigger sizes
- Sea-worthy bundling for export
- Custom stamping available
Delivery Timeline: 15-30 days depending on arrange amount and specifications.
Customization Service
You get custom-made arrangements for particular requirements:
- Special measurements and ratings
- Alternative materials
- Custom confronting and drilling
- Unique stamping and identification
- Modified jolt patterns
Our building group works closely with you to create ideal arrangements for challenging applications.
Quality Control
Every spine experiences strict quality verification:
- Chemical composition analysis
- Dimensional inspection
- Pressure testing
- Surface quality check
- Material traceability documentation
Our ISO 9001 certified framework guarantees steady quality delivery.

FAQ
Q: What is the maximum working pressure for a Class 150 flange?
A: While called "150," the actual pressure rating varies by temperature. At ambient temperature, a carbon steel Class 150 flange is rated for approximately 285 PSI.
Q: Can I use raised face flanges with flat face equipment?
A: No, you should match flange faces. Use flat face flanges with cast iron equipment to prevent cracking.
Q: What's the difference between slip-on and weld neck flanges?
A: Weld neck flanges provide stronger connections through full penetration welding. Slip-on flanges offer easier installation but lower strength ratings.
Contact Us
Ready to source premium ANSI B16.5 class 150 flanges? Contact our experienced team at admin@jsfittings.com for competitive quotes and technical support.
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