CORROSION EROSION PITTING SPECIMENS
Service Overview
Corrosion, erosion and pitting specimens reproduce
controlled material-loss conditions for training, wall-thickness evaluation,
mapping, equipment demonstrations and procedure development. They can be
produced in plate, pipe and tube geometries with defined remaining wall, pit
depth and affected area.
Scope of Service
1. Select
material, geometry and nominal wall thickness.
2. Define
general wall loss, localised corrosion, erosion profile or pitting pattern.
3. Control
depth, area, spacing and remaining wall within agreed tolerances.
4. Provide
internal or external metal-loss features where accessible.
5. Verify
dimensions and selected NDT responses as agreed.
Available Specimen and Component Configurations
1. Flat
corrosion plates.
2. Pipe and
elbow wall-loss specimens.
3. Tube
corrosion and pitting standards.
4.
Corrosion mapping training blocks.
5.
Multi-depth and multi-area wall-loss specimens.
Flaws, Reflectors or Conditions Covered
1. General
thinning.
2.
Localised corrosion.
3. Isolated
and clustered pitting.
4.
Erosion-type profiles.
5. Internal
and external wall-loss conditions.
Supported NDT Methods
The product, specimen or service can support the following
NDT methods where technically applicable. Final suitability is confirmed
against the material, geometry, target condition and intended equipment
configuration.
1. UT
thickness measurement.
2. PAUT and
encoded corrosion mapping.
3. PEC.
4. MFL.
5. ECT,
RFT/RFET and IRIS for suitable tubes.
6. VT/RVI
and other project-specific methods.
Typical Applications
1.
Wall-thickness training.
2.
Corrosion mapping demonstrations.
3. Probe
and scanner trials.
4.
Procedure development.
5.
Equipment comparison and validation.
Industries Served
1. Oil and
gas and pipelines.
2.
Refineries and petrochemical plants.
3. Power
generation and boilers.
4. Marine
and offshore.
5.
Chemical, process and storage facilities.
Applicable Codes, Standards and References
The work may be designed, manufactured or performed with
reference to the following, as applicable to the agreed scope:
1. ASME,
API and ASTM corrosion/inspection references where applicable.
2. ISO/EN
references where specified.
3.
Asset-owner corrosion-management and inspection procedures.
4. Approved
drawings and project acceptance criteria.
The customer should identify the exact document, edition and
revision. Reference to a standard does not by itself constitute certification,
accreditation or approval by the issuing body.
Project Workflow
1. Requirement Review: Review the
application, method, component, material, geometry, equipment and intended use.
2. Technical Definition: Confirm drawings,
dimensions, flaw or reflector schedule, tolerances, access and documentation
requirements.
3. Design Approval: Issue the proposed
technical basis or layout for customer review where custom manufacture is
required.
4. Manufacturing or Service Execution:
Complete fabrication, machining, flaw introduction, marking, inspection or
preparation under controlled instructions.
5. Verification: Check agreed dimensions,
identification, reflector locations and relevant NDT responses using suitable
methods.
6. Documentation and Delivery: Compile
agreed records, protect the items and arrange domestic or international
dispatch.
Documentation and Deliverables
Depending on the agreed scope, the deliverable package may
include:
1. Approved
drawing or technical layout, where applicable.
2. Material
and component information, where included.
3. Flaw,
reflector or reference-feature schedule and location map.
4.
Dimensional inspection record.
5. NDT
verification record, where included.
6. Unique
identification, engraving or labelling details.
7.
Photographic record where requested.
8.
Certificate of conformity for the agreed manufacturing or service scope.
9. Packing,
preservation and handling information.
Why Choose NDE Flaw Tech India?
1.
Application-specific engineering rather than one-size-fits-all
selection.
2. Support
for conventional and advanced NDT methods where technically applicable.
3.
Controlled machining, flaw introduction, identification and custom
fabrication capabilities.
4. Open,
blind and partially blind documentation options for training and assessment
programmes.
5.
Traceable drawings, flaw maps, dimensional records and verification
information when included in the scope.
6. Support
for domestic and international customers, subject to logistics and applicable
restrictions.
Information Required for a Technical and Commercial Proposal
1. Material
and component geometry.
2. Nominal
thickness.
3. Required
corrosion, erosion or pitting profile.
4. Depth or
remaining-wall range.
5. Internal
or external feature location.
6.
Inspection method and equipment.
7.
Applicable procedure and documentation requirements.
Technical Limitations and Responsibilities
1. Machined
wall-loss profiles provide repeatability but may not reproduce natural
roughness exactly.
2. Very
deep features can reduce structural integrity of the specimen.
3. Pit
diameter and depth tolerances depend on tooling and access.
4. Internal
features may be difficult to verify directly in complex geometry.
5. Final
inspection acceptance must follow the applicable procedure.
Frequently Asked Questions
Can you create several wall-loss depths in one specimen?
Yes. Multi-depth layouts are commonly used for training and
equipment comparison.
Can pitting be made on the ID of a pipe?
Yes, where bore access and geometry permit suitable
machining and verification.
Can natural corroded samples be supplied?
Where suitable material is available, naturally corroded
samples can be considered, but exact dimensions may be less controlled.
Can the specimen be used for corrosion mapping scanners?
Yes. Larger plates or pipe sections can be designed for
encoded scanning and mapping.
Can tube standards include pits and grooves together?
Yes, subject to tube wall thickness, spacing and the
selected inspection method.
Request a Proposal
Share the material, geometry, wall thickness, target
metal-loss profile and inspection method. We will propose a corrosion, erosion
or pitting specimen with suitable dimensions and documentation.