MaTestLab > Test Standards > ASTM B557 Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
Last updated 13th March 2025
ASTM B557 Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
ASTM B557 outlines test methods for conducting tension testing on wrought and cast aluminum- and magnesium-alloy products, excluding aluminum foil. By subjecting materials to uniaxial tensile stresses, these tests aim to ascertain their strength and ductility. The results gleaned from this procedure are vital for various applications, such as material comparison, quality control, alloy enhancement, and design optimization. Furthermore, ASTM B557 holds significant utility in acceptance testing for commercial shipments.
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ASTM B557 Introduction
Tension tests offer insights into the strength and ductility of materials when subjected to uniaxial tensile stresses. This data is valuable for comparing materials, refining alloys, ensuring quality control, and optimizing designs in specific scenarios. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM C365 tests for our clients. However, it’s essential to note that the results obtained from tension tests on standardized specimens may not fully capture the strength and ductility characteristics of the entire end product or its performance in various real-world conditions.
ASTM B557 Test Method
Preheating and Sample Measurement
The test machine is preheated before the test. The dimensions of the test specimens are then measured. Most specimens consist of two shoulders and a gage section between them. The gage section is intentionally designed with a smaller cross-section to facilitate deformation and failure in this area.
Extension
The test specimen is secured in the testing machine, which gradually extends it until it fractures. Throughout this process, the elongation of the gage section is recorded alongside the applied force. From these measurements, the yield strength and tensile strength are calculated.
B557 Equipment and Sample Preparation
Specimen Detail
Whenever possible, test specimens should encompass the full section of the material. However, if this is not feasible, machined specimens with rectangular or round cross-sections are acceptable.
Specimen Size
Rectangular specimens are typically required to be 0.500 inches in width. However, a subsize specimen with a width of 0.250 inches may also be utilized.
B557 Test Result and Interpretation
ASTM B557 offers a standardized approach for conducting tension tests on wrought and cast aluminum- and magnesium-alloy products. This method is utilized to ascertain various tensile properties of these alloys, such as yield strength, tensile strength, and elongation.
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Tests Related to ASTM B557
ASTM B557 is related to tests, including ASTM E4 specification for calibration of testing devices, ASTM E6 for mechanical testing-related terminologies, and ASTM E8 for tension measurement of metals.
Use of B557 in Various Industries
It is used to test the tensile properties of aluminum and magnesium alloy products through industries like aerospace, automobile, and manufacturing. It maintains structural integrity, measures lightweight vehicle component strength-related mechanical properties, and finds various applications for construction and electronics in terms of strength-to-weight ratio and corrosion resistance.
Materials Commonly Tested with B557
It tests aluminum and magnesium alloys in the following 2024, 7075, and 6061 varieties for tensile strength, yield strength, elongation, and reduction in area, which helps in determining its suitability for other applications, which include automotive and aircraft parts.
Importance of B557
The standard is important for the evaluation of mechanical properties of aluminum and magnesium alloys, which ensure product safety and performance. It provides standardized data, allows manufacturers to assess strength, ductility, and overall behavior under tension, and drives innovation.
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FAQ's
Where can I get the astm b557 tested?
You can share your astm b557 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 b557 test to various testing techniques.
How much do I need to pay for the astm b557 test?
Please contact us for a detailed quote for your astm b557 testing needs. Cost incurred to carry out different astm b557 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 b557?
The required number of samples or specimens should comply with the procedure given in the astm b557 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the astm b557 test?
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 b557 test?
The turnaround time for astm b557 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 b557 tested?
You can share your astm b557 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 b557 test to various testing techniques.
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