ASTM A489 Standard Specification for Carbon Steel Eyebolts
The chemical, mechanical, grain size, and dimensional criteria for weldless forged, quenched, and tempered carbon steel threaded lifting eyes (formerly known as eyebolts) for overhead lifting are covered by the ASTM A489 specification. Type 1 (straight shank), Type 2 (shoulder pattern), and Style B (short length) are the three varieties of shank patterns and lengths that are included in this specification. The lifting eyes must be produced following the requirements for the machining, heat treatment, forging, and melting procedures. Proof, breaking strength, tensile stress and strength, bend strength, impact strength, yield point, elongation, and area reduction are the mechanical characteristics that the lifting eyes conform to.
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ASTM A489 Introduction
Carbon steel eyebolts play a vital role in load-handling and lifting applications. When utilized in building, shipping, machinery settings, or rigging equipment, these products need to function consistently under dynamic stress. ASTM A489 establishes a basis for assessing the mechanical properties and structural soundness of carbon steel forged eyebolts. It establishes dimensional specifications, load capacities, heat treatment procedures, and thread designs for maintaining safety in lifting. The specification separates shoulder-type and plain-pattern eyebolts, each having its own design and performance requirements. Suppliers depend on this spec to inform quality assurance procedures, while engineers and safety inspectors employ it to check for compliance in the field. ASTM A489 assures that eyebolts will withstand axial tension without yielding or fracturing, even under harsh operating conditions.
ASTM A489 Test Method
Proof Load Testing
Eyebolts are loaded in axial tensile by means of a hydraulic test rig for verification of load capacity without permanent deformation.
Thread Integrity Test
Threads are inspected with calibrated ring gauges to ensure correct thread depth, pitch, and tolerance alignment.
Hardness Test
Conducted on the head or shank with a Rockwell hardness tester to verify heat treatment success and material strength.
ASTM A489 Equipment and Sample Preparation
Hydraulic Tensile Tester
Applied to subject the eyebolt to controlled axial tension and monitor elongation and deformation.
Thread Gauge Set
Comprises calibrated GO and NO-GO gauges to check internal and external thread conformance.
Surface Grinder and Polisher
Used to grind and polish a flat and smooth surface on the eyebolt head for accurate hardness testing.
ASTM A489 Results and Interpretation
Test results are referenced against minimum requirements. Proof load testing indicates that the eyebolt does not deform or break under the given load. Thread inspection verifies that the bolts may be safely tightened without thread stripping or misalignment. Hardness results confirm the heat treatment process and verify that the material possesses sufficient resistance to mechanical stress. Only eyebolts passing all requirements are accepted for lifting and anchoring equipment. Failure in any of the tests can render the component unsuitable for safety-related use.
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ASTM A489 Related Articles
ASTM A153 specifies the zinc coating of iron and steel hardware, such as eyebolts, by hot-dip galvanizing for corrosion protection. ASTM F541 gives requirements for eye bolt lifting points with tapped holes covering threaded hole applications. ASTM A576 sets requirements for carbon steel bars as raw material for forging components such as eyebolts.
Applications of ASTM A489 in Industry
ASTM A489-certified eyebolts are extensively applied in construction hoists, shipyards, heavy rigging equipment, and factory equipment installation. They hold loads in place during lifting and act as structural attachment points in assemblies. Their tensile strength is high, and they are highly adaptable in design, so they are applicable for dynamic loading, particularly where there is a need for precision and safety. In the energy industry, they are applied for lifting turbines, transformers, and piping modules.
Importance of ASTM A489
ASTM A489 testing of eyebolts is essential to provide workers with safety and load security when lifting. The use of not properly tested eyebolts leads to structural failures, dropped loads, and fatal accidents. The tests described assure that the bolts are in line with mechanical and dimensional specifications before they are sent to the field. This reduces the risk of field failure and ensures performance within rated conditions. Proper testing according to this standard assures lifting operations for various industrial uses.
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Please contact us for a detailed quote for your astm a489 testing needs. Cost incurred to carry out different astm a489 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm a489?
The required number of samples or specimens should comply with the procedure given in the astm a489 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
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MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm a489 test?
The turnaround time for astm a489 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the astm a489 tested?
You can share your astm a489 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm a489 test to various testing techniques.
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