ASME Steel Flange
Pressure Classes: Class 150, 300, 400, 600, 900, 1500, 2500.
Available Types:
WN (Weld Neck), SO (Slip-On), BL (Blind)
SW (Socket Weld), TH (Threaded), LJ (Lap Joint).
Face Types:
Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ).
Size Range: 1/2" – 60" (DN15 – DN1500).
Material Selection:
Carbon Steel: ASTM A105 (Standard), A350 LF2 (Low-temp).
High-Yield: ASTM A694 F42, F52, F60, F65, F70.
Stainless Steel: ASTM A182 F304/L, F316/L, F321.
Alloy Steel: ASTM A182 F11, F22, F91.
- Free Samples
- Quality Assurance
- 24/7 Customer Service
Product Introduction
ASME Steel Flange - Premium Quality Industrial Flanges
Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd. stands as your trusted accomplice for premium ASME steel flange arrangements with over 40 a long time of fabricating greatness. Our progressed 7,000-square-meter office produces high-precision flanges that meet worldwide benchmarks. With yearly deals surpassing RMB 100 million and month to month shipment volumes outperforming 50 holders, we convey enterprise-grade unwavering quality for your basic pipeline applications. Our flange items guarantee zero-alignment issues and idealize dimensional compatibility over universal projects.
ASME Steel Flange Overview
Flange items speak to the worldwide benchmark for dimensional compatibility in pressurized channeling frameworks. Whether you're overseeing a refinery extend or mechanical office, these spines ensure that valves, pumps, and channels from diverse producers adjust superbly. You get a secure, leak-proof seal that withstands requesting operational conditions.
Our fabricating prepare takes after strict ASME resistances, guaranteeing tradable over worldwide establishments. Each spine experiences accuracy machining and quality confirmation some time recently shipment to your facility.





Key Features & Advantages
Global Interchangeability
Your establishment groups will appreciate the strict adherence to ASME resiliences. This exactness disposes of arrangement issues amid onsite establishment with standard valves and equipment.
High-Precision Bolting
CNC-drilled jolt gaps ensure indeed stretch dissemination over the flange confront. This designing approach avoids localized spills in high-pressure environments.
Optimized Gasket Seating
Flange faces are machined with controlled serrated wrap up (AARH 125-250). This surface treatment maximizes gasket grasp and fixing execution for long-term reliability.
Superior Material Quality
We utilize premium steel grades that meet worldwide determinations. Each fabric group experiences chemical composition examination and mechanical property testing.
Technical Specifications
| Parameter | Specification |
|---|---|
| Standards | ASME B16.5 (1/2" to 24"), ASME B16.47 Series A & B (26" to 60") |
| Pressure Classes | 150, 300, 400, 600, 900, 1500, 2500 |
| Flange Types | Weld Neck (WN), Slip-On (SO), Blind (BL), Socket Weld (SW), Threaded (TH) |
| Facing Types | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF) |
| Size Range | 1/2" to 60" |
| Temperature Range | -29°C to 538°C |
Standards & Certifications
Your projects require compliance with international standards. Our ASME steel flange products meet:
- ASME B16.5 for standard sizes
- ASME B16.47 for large diameter applications
- ISO 9001 quality management certification
- CE marking for European markets
- GOST-R certification for Russian markets





Chemical Composition & Mechanical Properties
| Grade | Carbon (%) | Manganese (%) | Tensile Strength (MPa) | Yield Strength (MPa) |
|---|---|---|---|---|
| A105 | ≤0.35 | 0.60-1.05 | ≥485 | ≥250 |
| A350 LF2 | ≤0.30 | 0.60-1.35 | ≥485 | ≥250 |
| A182 F304 | ≤0.08 | ≤2.00 | ≥515 | ≥205 |
| A182 F316 | ≤0.08 | ≤2.00 | ≥515 | ≥205 |
Manufacturing Process
Our controlled manufacturing environment ensures consistent quality:
- Material Verification: Incoming steel undergoes spectrometer analysis
- Precision Forging: Computer-controlled forging for optimal grain structure
- CNC Machining: Advanced machining centers ensure dimensional accuracy
- Heat Treatment: Stress relief and hardness optimization
- Quality Inspection: Dimensional verification and surface finish testing
- Final Certification: Material test certificates accompany each shipment

Surface Finish & Coating Options
You can select from multiple surface treatments:
- Standard Finish: Machine finish per ASME specifications
- Anti-Corrosion Coating: Epoxy or zinc coating for harsh environments
- Special Finishes: Custom surface treatments for specific applications
- Marking: Permanent identification stamping per your requirements
Applications
ASME steel flange products serve diverse industrial sectors:
- Oil and gas processing facilities
- Chemical and petrochemical plants
- Power generation stations
- Water treatment systems
- HVAC industrial applications
- Marine and offshore platforms

Packaging & Delivery
Your flanges receive protective packaging for safe transport:
- Individual plastic caps for flange faces
- Wooden crates for international shipping
- Foam padding prevents damage during transit
- Complete documentation package included
- Typical delivery time: 15-25 working days
Customization Service
We accommodate your specific project requirements:
- Non-standard dimensions and specifications
- Special material grades and certifications
- Custom marking and identification
- Modified pressure ratings
- Unique facing requirements
- Sample orders for testing and approval
Quality Control
Every flange undergoes comprehensive testing:
- Dimensional inspection with calibrated instruments
- Non-destructive testing when specified
- Material traceability documentation
- Pressure testing capabilities
- Third-party inspection acceptance
- Complete material test certificates

FAQ
Q: What is the contrast between ASME B16.47 Series A and Series B?
A: Series A (formerly MSS SP-44) highlights thicker development, heavier weight, and bigger jolts. This plan suits modern pipeline ventures requiring greatest quality. Arrangement B (once API 605) offers compact, lightweight development for substitution work or tight-space applications. These arrangement are not conversely due to diverse jolt designs and dimensions.
Q: Can you give fabric test certificates?
A: Yes, we give total fabric test certificates with each shipment. These records incorporate chemical composition, mechanical properties, and dimensional confirmation data.
Q: What are your least arrange quantities?
A: We acknowledge little orders and test amounts. Least orders depend on measure and determination prerequisites.
Contact Us
Ready to discuss your ASME steel flange requirements? Contact our technical team at admin@jsfittings.com for detailed specifications and competitive quotations.
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