ASTM D2105 is a standard test method for measuring longitudinal (axial) tensile properties of fiberglass pipe and tube under defined conditioning and test-speed requirements. It is used to generate comparable tensile property data for glass-fiber-reinforced thermosetting-resin pipe systems used in industrial piping and related applications.
If you need help aligning your specimen type, diameter range, or strain-measurement approach to the edition you are citing, talk with our team before finalizing a test plan.
ASTM D2105: Standard Test Method for Longitudinal Tensile Properties of “Fiberglass” (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe and Tube
This method focuses on tensile behavior along the pipe axis. Results are commonly used for engineering comparison, product qualification, and quality/acceptance programs where an axial tensile baseline is required for fiberglass pipe constructions.
The scope is centered on fiberglass pipe constructions including glass-fiber-reinforced thermosetting-resin pipe (RTRP) and glass-fiber-reinforced polymer mortar pipe (RPMP). The standard is generally limited to smaller diameters unless a suitable test setup is available for larger sizes.
Quick definition
What it is: A tensile test method for determining comparative longitudinal tensile properties of fiberglass pipe and tube.
What it measures: Common tensile outputs such as tensile strength and modulus, and strain/elongation behavior as applicable to the material response.
What it’s for: Generating comparable axial tensile property data for design comparison, qualification, and quality control programs.
What This Standard Covers
ASTM D2105 covers determination of comparative longitudinal tensile properties of fiberglass pipe when tested under defined conditions of pretreatment, temperature, and testing machine speed.
The method applies to fiberglass pipe types including RTRP and RPMP constructions. It is often applied when an axial tensile property check is needed to compare lots, constructions, or suppliers using a consistent approach.
Practical scope note: The method is generally limited to pipe diameters of 6 in. (150 mm) or smaller, with larger sizes requiring appropriate apparatus and fixturing.
Why This Standard Matters in Testing
Fiberglass pipe performance depends strongly on reinforcement architecture and laminate design. A longitudinal tensile method provides a standardized way to compare axial tensile response across constructions that may otherwise look similar geometrically.
In many QA/QC and procurement workflows, D2105 results support acceptance decisions, supplier comparisons, and documentation packages tied to product requirements. In R&D, it can be used to compare material/process changes under controlled test conditions.
Common Materials, Product Types, or Applications Covered
Common product forms: Fiberglass pipe and tube.
Common constructions: Glass-fiber-reinforced thermosetting-resin pipe (RTRP) and glass-fiber-reinforced polymer mortar pipe (RPMP).
Typical use environments: Industrial piping applications where composite pipe is selected for corrosion resistance and strength-to-weight considerations, and where axial tensile properties are part of the qualification or control plan.
Common Test or Verification Workflow
This standard is typically used as part of an axial tensile verification sequence for fiberglass pipe.
Common workflow: Define the cited edition and acceptance criteria → select pipe diameter range and specimen approach appropriate to the product → condition specimens per the standard → run axial tensile testing at the specified machine speed → report tensile properties required by the purchase specification or quality plan.
Reporting caution: Because fiberglass pipe designs can be optimized for different load cases, purchasers and suppliers should align on how D2105 results will be interpreted for the intended service condition.
Equipment Commonly Used for This Standard
ASTM D2105 is performed on a tensile test system capable of applying controlled axial load to pipe/tube specimens with proper alignment.
Common equipment: A universal testing machine (UTM) with suitable load capacity, tensile test control, and data acquisition.
Common accessories: Application-specific grips and fixtures designed for axial loading of pipe/tube specimens, alignment hardware to reduce bending, and appropriate strain measurement (when required by the reporting needs and material response).
Quoting note: The pipe diameter, wall construction, and expected failure load drive fixture style and machine sizing. If you are selecting a system for fiberglass pipe tensile work, you can request a detailed quote based on your diameter range and force targets.
How to Read This Designation or Revision
ASTM standards are commonly cited using the designation letter and number (D2105) plus a suffix indicating the year of acceptance or last revision (for example, D2105-25).
Some citations may also include a parenthetical year to indicate a reapproval year. When matching historical reports, procurement documents, or regulatory submittals, confirm that the exact cited designation (including year and any parenthetical reapproval year) matches the test requirements and reporting expectations being applied.
Related Standards, Methods, or Frameworks
Fiberglass pipe programs frequently combine tensile testing with other mechanical and performance evaluations (for example, pressure-related or long-term performance testing) depending on the product specification and service environment.
When a specification references multiple methods, make sure your test plan clearly maps each required property to the correct standard and edition so that conditioning, fixturing, and reporting are consistent across the full qualification package.
Get help with ASTM D2105 testing equipment and setup
If you need help selecting a UTM capacity, fixture approach, or instrumentation package for ASTM D2105 on your pipe size range, contact our team for application guidance.