Supply of E-1110 fintubes and ferrules
Tube Ferrules
Tube ferrules are critical components in heat exchanger systems, serving as protective inserts that enhance tube-to-tubesheet joint integrity and prevent erosion and corrosion at connection points. The E-1110 specification represents premium-grade ferrules designed for high-temperature and high-pressure applications.
Tube Ferrule Assembly Configuration
[Technical Diagram: Tube with inserted ferrule showing 0.4mm maximum gap tolerance]
Visual representation of proper ferrule installation with critical gap specifications
Material Composition Standards
| Material Grade | Chemical Composition | Temperature Range | Primary Applications |
|---|---|---|---|
| 309HCb | High Chromium-Nickel with Columbium | Up to 1150°C | High temperature heat exchangers |
| 310HCb | Higher Chromium-Nickel with Columbium | Up to 1200°C | Extreme temperature applications |
| 321/321H | Stabilized with Titanium | Up to 900°C | General high temperature service |
| 347/347H | Stabilized with Columbium+Tantalum | Up to 950°C | Corrosive high temperature environments |
Quality Control Requirements & Inspection Test Plan
Certification and Documentation Standards
The supplier must confirm understanding and compliance with the following quality control and assurance requirements:
- ASME/ASTM Specification Compliance: All standard requirement results must be clearly documented in respective Material Test Certificates (MTC)
- Material Test Certificates: Must conform to EN 10204 3.2 standards with explicit technical offer declarations
- Comprehensive Testing: MTC must include results for chemical composition, heat treatment confirmation, and specialized corrosion tests
Mechanical Property Testing Requirements
Tensile Testing
Measures material strength under tension forces to ensure minimum yield and tensile strength requirements
Flattening Test
Evaluates ductility and surface integrity by flattening tube samples to specified dimensions
Flare/Flange Test
Assesses the ability of tube ends to be flared without cracking or failure
Hardness Test
Verifies material hardness falls within specified ranges for optimal performance
Non-Destructive Testing Protocols
| Test Method | Scope | Standard Reference | Acceptance Criteria |
|---|---|---|---|
| Eddy Current Examination | 100% of tubes | ASTM E690 | No rejectable indications |
| Hydrostatic Test | 100% of tubes | ASTM A1016 | No leakage or permanent deformation |
| Visual Inspection | 100% of ferrules | ASME BPVC Section V | No surface defects or contamination |
Ferrule Installation and Tolerance Specifications
Critical Gap Tolerance: 0.4mm Maximum
All tube ferrules must demonstrate a maximum gap of 0.4mm between tube inner diameter and ferrule outer diameter during 100% factory testing. This ensures optimal heat transfer and mechanical stability.
Manufacturing and Approval Process
- Formal ITP Preparation: Required when manufacturing against OQ approved drawings
- OQ Approval: Must be obtained prior to manufacturing commencement
- Stock Supply Protocols: MTC must meet specification requirements with witnessed testing
- Drawing Generation: Supplier must create new drawings for OQ review and approval
Tolerance Requirements
All manufacturing must adhere to the tolerances specified in "SAP Code - 20119044 - Ferrule drawing" for both tubes and ferrules to ensure proper fit and function in final assembly.
Technical Data Comparison: Ferrule Performance Metrics
| Performance Parameter | Standard Ferrules | E-1110 Premium Ferrules | Performance Improvement |
|---|---|---|---|
| Maximum Operating Temperature | 800°C | 1200°C | +50% |
| Corrosion Resistance | Moderate | Excellent | Enhanced protection |
| Thermal Cycling Capability | 1000 cycles | 5000+ cycles | 5x improvement |
| Pressure Rating | 1500 PSI | 2500 PSI | +67% |
Quality Assurance Protocol Highlights
Documentation Compliance
All certificates must reference applicable ASME/ASTM standards with complete test result documentation
Material Verification
Chemical composition and heat treatment confirmation mandatory for all material grades
Witnessed Testing
Critical tests including hydrostatic and eddy current examination require OQ witness
Gap Verification
100% ferrule insertion testing with 0.4mm maximum gap verification as hold point