Asme B16.5 Socket Weld Flange
✅ 2 Factories | 30 Production Lines – Scalable capacity for any order size
✅ 21 Years of Expertise – Precision titanium manufacturing since 2003
✅ Certified Quality – ISO/SGS/TUV certified with strict QC
✅ Global Logistics – Fast shipping via DHL, FEDEX, air & sea freight
✅ 800 Tons Annual Output – Reliable supply for bulk orders
Limited Capacity Alert! Get your quote within 24 hours.
ASME B16.5 Socket Weld Flange – Precision Titanium Flanges by LINHUI TITANIUM
LINHUI TITANIUM manufactures high-performance Asme B16.5 Socket Weld Flange solutions backed by 21 years of expertise since 2003. Our facility operates 2 factories with 30 production lines, delivering 800 tons annual output to meet bulk orders reliably. Each flange is ISO/SGS/TUV certified under strict quality control protocols.
We support scalable capacity from trial batches to industrial-scale projects. With 200+ tons stock inventory, quotation responses arrive within 4 hours, and stock orders ship in 3–7 days. Global logistics via DHL, FEDEX, and sea freight ensure your timeline stays on track.
Limited Capacity Alert! Get your custom quote within 24 hours at linhui@lhtitanium.com.

Key Features & Benefits
Our socket weld flanges feature a recessed counterbore for self-aligning pipe insertion. This eliminates complex fit-up procedures common in butt-welded joints. The design reduces turbulence and erosion while providing superior fatigue resistance in small-bore systems (NPS ≤2).
Grade 2 titanium offers excellent corrosion immunity in seawater and oxidizing acids. Grade 5 (Ti-6Al-4V) delivers tensile strength up to 895 MPa for high-pressure applications. The stable TiO₂ oxide film prevents pitting and crevice corrosion without maintenance.
Density of 4.51 g/cm³ provides a 60% weight reduction versus steel flanges. This lowers installation costs and structural loads in offshore platforms.
2. Specifications
Below are the detailed specifications for our ASME B16.5 Socket Weld Flange:
| Attribute | Details |
|---|---|
| Standard | ANSI/ASME B16.5, DIN, JIS, AWWA, API, ISO |
| Material Options | Carbon Steel (ASTM A105, ASTM A350 LF1, LF2, LF3, A36, ASTM A234 WPB), Stainless Steel (ASTM A403 F304/304L, 316/316L, 316Ti, 321, 317L, 310S), Alloy Steel (ASTM A234 WP1/5/9/11/12/22/91) |
| Size Range | Available in various sizes, contact us for custom dimensions |
| Delivery | Typically within 30 days, dependent on order quantity |
| Payment Terms | TT, LC, OA, D/P |
| Packaging | Wood Cabins/Wood Tray |
Manufacturing Process
For the best grain flow, flanges begin with forged titanium billets heated to 900–1000°C. By shaping the hub and counterbore to near-net dimensions, closed-die forging reduces material waste.
Bolt holes are positioned within ±0.1mm tolerance thanks to CNC machining. In accordance with ASME B16.11, the socket recess is bored to a precise depth to guarantee an appropriate expansion gap (usually 1.6 mm).
Forging residual stress is relieved by heat treatment at 650°C. The natural oxide layer is exposed when surface scale is removed by acid pickling. Gasket sealing integrity is ensured by final surface polishing to Ra 3.2–6.3µm.
Quality Inspection
100% PMI testing avoids material mix-ups and confirms alloy composition. For Grade 2, the iron concentration is kept below 0.30% in order to preserve corrosion resistance.
Internal voids or forging laps in the hub portion can be found via ultrasonic testing (UT). Surface cracks on the sealing face and bore can be found using dye penetrant inspection (DPI).
Dimensional verification compares the socket depth, flange thickness, and bolt circle diameter to ASME B16.5 tables. Proper heat treatment is ensured by hardness testing (HRB). Complete traceability by heat number is offered by EN 10204 3.1 certificates.
Applications
Offshore Oil & Gas: The Socket Weld Flange's resistance to chloride stress corrosion is advantageous for high-pressure seawater injection systems. When compared to copper-nickel alloys, maintenance shutdowns are reduced by 80%.
Chemical Processing: In wet chlorine and hypochlorite lines, where normal metals quickly break, chlor-alkali factories employ these flanges. Leaks in pulp bleaching systems are avoided by the socket design.
Power Generation: The erosion-corrosion resistance of titanium is essential for nuclear condenser cooling systems and geothermal brine pipelines. Under high-velocity particle abrasion, the flange preserves the integrity of the vacuum seal.
Desalination Plants: Fatigue-resistant joints are necessary for small-bore instrument lines that handle concentrated brine. Installation in confined locations without bevel preparation is made easier with the socket weld arrangement.
Export Markets
We have transported hundreds of thousands of tons to more than 60 nations:
North America: Mexico, Canada, and the United States
Europe: France, Germany, the United Kingdom, and the Netherlands
Middle East: Saudi Arabia, Qatar, the United Arab Emirates
Asia-Pacific: Singapore, South Korea, Japan
Latin America: Venezuela, Ecuador (collaborations with PDVSA and PETROECUADOR)
CEFC, PTT, PETRONAS, LUKOIL, and PEMEX have long-term supply agreements.
Why Choose Us
Competitive price is achieved by eliminating middlemen through direct mill supply. From raw materials to completed goods, factory-direct control guarantees uniform quality. Asme B16.5 Socket Weld Flange.
Trial orders starting at 100 kg are supported by the flexible MOQ. Within a day, our engineering staff offers advice on material selection and reviews drawings.
Global clients benefit from multilingual service in Arabic, Spanish, and English. SGS, TÜV, DNV, and ABS are available for third-party inspections upon request.
Urgent jobs are handled with rush order capacity. Custom fabrication takes 25–40 days, whereas standard manufacture is finished in 15–25 days.

Packaging & Shipping
Shock-absorbing foam is used to fix flanges in plywood crates after they have been wrapped in anti-rust paper. For ease of identification, each box is tagged with the quantity, dimensions, and heat number.
Small orders are shipped by FEDEX or DHL (3–5 days worldwide). Depending on your budget, bulk orders can be shipped by sea (20–35 days) or by air (7–10 days).
We offer business invoices, packing lists, certificates of origin, and mill test certificates (MTC). High-value shipments can be covered by insurance.
Customer Reviews

Certification
Our extensive range of certifications demonstrates our commitment to quality and safety:
- Manufacturing License of Special Equipment of China
- TUV Nord AD2000-W0 Certification
- PED 2014/68/EU Certification
- Various ISO Certificates (ISO 9001:2015, OHSAS 18001:2007, ISO 14001:2015)
- Approval from Third-Party Agencies such as DNV, BV, SGS, Moody's, TUV, ABS, LR, and more.

FAQ
Q: What's the minimum expansion gap for socket welds?
A: Leave 1.6mm (1/16") gap at socket bottom per ASME B16.11 to prevent cracking from thermal expansion during welding.
Q: Can you supply flanges with custom facing?
A: Yes, we machine RTJ grooves, tongue-and-groove, and male-female faces per your specification.
Q: How do I prevent crevice corrosion in the socket gap?
A: Use Grade 7 (Pd-stabilized) titanium for highly corrosive environments. Seal-welding the gap is optional for critical services.
Q: What's the lead time for 50 pieces NPS 1" Class 300# flanges?
A: Stock items ship in 5 days. Non-stock sizes require 18–22 days production.
Q: Do you provide welding procedure specifications (WPS)?
A: Yes, our engineering team supplies WPS and qualified welder recommendations for titanium socket welding.
Request a Quote
Need reliable Asme B16.5 Socket Weld Flange for your next project? Our team delivers customized solutions with technical support. Email linhui@lhtitanium.com now—quotes provided within 24 hours with limited capacity slots available.

















