Dished End Caps
Specification: ASTM B363 /ASME SB363
Grades: Grade2/ grade5
Available sizes：DN15-DN600(NPS 1/2”-24”)
Features: Corrosion resistance
Material: Titanium and titanium alloys
Equipped with laser caliper, ultrasonic flaw detector, surface smoothness tester, hardness tester, metallographic microscope, electronic testing machine and other testing equipment
Dished End Caps - High-Performance Titanium Closures
LINHUI TITANIUM produces high-quality Dished End Caps in Grade 2 and Grade 5 titanium alloys in accordance with ASTM B363/ASME SB363 specifications. Our product line includes DN15-DN600 (NPS 1/2"-24), which is designed to withstand corrosion in challenging industrial settings.
Laser calipers, ultrasonic flaw detectors, hardness testers, surface smoothness testers, metallographic microscopes, and electronic testing equipment are used to rigorously verify the quality of each product. We provide factory-direct End Caps that satisfy PED 2014/68/EU, NORSOK M-650, and EN 10204 traceability criteria for international chemical processing, maritime, and aerospace applications thanks to our 200+ tons of stock inventory and decades of metallurgical experience.
Key Features & Benefits
For piping systems and pressure vessels, our End Caps offer outstanding sealing performance. Under heat cycling, the dished design prevents fatigue cracking by distributing stress evenly.
For cold forming processes, grade 2 caps provide exceptional ductility. Grade 5 is 45% lighter and has three times the tensile strength of steel. In seawater and acidic environments, both grades withstand stress corrosion cracking caused by chloride.
ASME B16.9 pipe components are seamlessly integrated thanks to precision production. In safety-critical installations, complete material traceability through heat number tracking ensures compliance.
Specifications
| Specification | Details |
|---|---|
| Standard | ASTM B363 / ASME SB363 |
| Grades | Grade 2, Grade 5 |
| Available Sizes | DN15-DN600 (NPS 1/2”-24”) |
| Features | Corrosion resistance |
| Material | Titanium and titanium alloys |
Manufacturing Process
We employ controlled hot-forming techniques for dished geometries. Titanium billets are heated to 850-950°C and pressed using hydraulic dies. CNC machining ensures precise edge beveling for weld preparation.
Each cap receives annealing treatment at 700°C to relieve forming stresses. Pickling in HNO₃-HF solution removes surface oxides. Thickness tolerance is maintained within ±0.05mm through laser-guided quality checks.
Final dimensions undergo coordinate measuring machine (CMM) verification before packaging.
Quality Inspection
· PMI Testing: XRF analysis confirms alloy composition per ASTM B363
· Ultrasonic Testing: Detects internal defects >0.5mm
· Dye Penetrant Inspection: Verifies surface integrity on weld bevels
· Hydrostatic Testing: 1.5x design pressure proof test available
· EN 10204 3.1/3.2: Full material traceability certificates provided
Applications Of Dished End Caps
Chemical Processing: Reactor vessel closures that deal with sodium hydroxide, sulfuric acid, and chlorine.
Seawater RO system manifolds in desalination plants have a service life of more than 20 years.
Aerospace: APU exhaust components and landing gear systems' hydraulic line terminations.
Oil and gas: HIPPS (High Integrity Pressure Protection Systems) and subsea pipeline terminations.
Export Markets
More than 60 nations, including the United States, Germany, Canada, the United Arab Emirates, South Korea, and Singapore, are served by our products. For major EPC projects, we continue to collaborate with PETRONAS, PEMEX, and CEFC.
Technical consultations are handled by multilingual support teams in Arabic, Spanish, and English.
Why Choose Us
Direct Mill Supply: Factory pricing with zero intermediaries ensures cost efficiency.
Fast Turnaround: Stock orders ship within 3-7 days; custom fabrication in 25-40 days.
Engineering Support: In-house metallurgists assist with material selection and welding procedures.
Flexible MOQ: Trial orders accepted from 100 kg for new project validation.
Packaging & Shipping
End caps are packed in wooden cartons with shock-absorbing foam after being individually wrapped in anti-rust paper. Heat numbers and order information are labeled on each carton.
For large orders, we set up container shipment (FCL/LCL) and door-to-door logistics using FedEx and DHL for samples. Commercial invoices, packing lists, and EN 10204 certificates are examples of export documentation.
Our Factory
Linhui’s modern facility leads the titanium industry with an unwavering commitment to delivering high-quality and high-performance dished end caps products. We use advanced technologies and processes to ensure reliability, consistency, and excellence.
Certification
We hold numerous certifications to ensure our dished end caps products meet international standards:
- Manufacturing License of Special Equipment of China
- TUV Nord AD2000-W0 Certification
- PED 2014/68/EU Certification
- ISO 9001:2015 QMS Certificate
- OHSAS 18001:2007 Certificate
- ISO 14001:2015 Certificate
- Approved by leading third-party inspection agencies: DNV, BV, SGS, Moody’s, and more.
FAQ
Q: Can you supply ellipsoidal Dished End Caps for high-pressure vessels?
A: Yes, we manufacture 2:1 ellipsoidal heads per ASME Section VIII Division 1 requirements.
Q: What's the minimum order quantity?
A: Stock items start from 10 pieces; custom sizes require 50 pieces minimum.
Q: Do you provide welding procedure specifications (WPS)?
A: Yes, our engineering team provides qualified WPS documents for TIG and plasma welding of titanium fittings.
Q: How do I verify material authenticity?
A: Every shipment includes PMI test reports and mill certificates traceable to original ingot heat numbers.
Request a Quote
Need custom Dished End Caps for your project? Contact our technical team at linhui@lhtitanium.com with your drawings and specifications. Receive quotations within 4 hours and expert material recommendations.
