Customized Flange ANSI/ASME/JIS Standard Steel Flange
We specialize in manufacturing customized flanges that meet ANSI, ASME, and JIS standards, available in carbon steel, stainless steel, and square flange designs. Our flanges are engineered to provide reliable performance across various industrial applications, with complete customization options to meet specific project requirements and dimensional specifications.
Design & Engineering Customization
Flange Types: Custom designs for weld neck, slip-on, blind, socket weld, lap joint, threaded, and special configurations
Dimensions: Non-standard diameters, thicknesses, and bolt circle configurations
Pressure Ratings: Custom pressure classes beyond standard ratings
Face Types: Special facing requirements including raised face, flat face, ring joint, and tongue-and-groove
Integral Features: Added features like lugs, tabs, or special connections
Quality Assurance
Material traceability with mill certificates
Dimensional verification per specified standards
Non-destructive testing reports
Pressure testing certification
Full documentation package
Manufacturing Capabilities
Custom Machining:
CNC precision machining for special dimensions
Heat Treatment:
Normalizing, quenching, tempering as required
Surface Treatment:
Anti-rust oil, galvanizing, painting, coating
Testing Facilities:
UT, MT, PT, RT, hydrostatic testing
Certification:
ISO 9001, PED, API 6A, ABS, DNV-GL
MARKING AND PACKING
Standard export packaging
Wooden cases or pallets
Plastic protection for machined surfaces
Clear marking and identification
Worldwide shipping arrangements
INSPECTION
• UT test
• PT test
• MT test
• Dimension test
Before delivery, our QC team will arrange NDT test and dimension inspection.Also accept TPI(third party inspection).
Manufacturing Process Customization
Forging Methods: Custom die designs for specific flange geometries
Heat Treatment: Tailored thermal processes for desired mechanical properties
Machining: Special tolerances, surface finishes, and geometric features
Welding Preparation: Custom bevel designs and welding preparations
Application
Oil & Gas: Wellhead flanges, subsea components, sour service applications
Power Generation: Nuclear-grade flanges, high-temperature applications
Chemical Processing: Corrosion-resistant designs for aggressive media
Marine & Offshore: Saltwater-resistant materials and coatings
Aerospace: Precision flanges with strict tolerances
Why Choose Our Customized Flanges?
Technical Expertise: 30+ years in custom flange manufacturing
Quality Commitment: Stringent quality control throughout production
Flexible Capacity: Ability to handle both small and large custom orders
Global Experience: Successful projects worldwide across multiple industries
Competitive Advantage: Cost-effective solutions without compromising quality
Q: Can you accept TPI?
A: Yes, sure. Welcome visit our factory and come here to inspect the goods and inspect production process.
Q: Can you supply Form e, Certificate of origin?
A: Yes, we can supply.
Q: Can you supply invoice and CO with chamber of commerce?
A: Yes, we can supply.
Q: Can you accept L/C deferred 30, 60, 90 days?
A: We can. Please negotiate with sales.
Q: Can you accept O/A payment?
A: We can. Please negotiate with sales.
Q: Can you supply samples?
A: Yes, some samples are free, please check with sales.
Q: Can you supply the products which comply with NACE?
A: Yes, we can.















