Tests

1) Bend - A test sometimes made to indicate ductility or bending quality by bending a suitable specimen about a predetermined radius through a predetermined angle.

2) Brinell Hardness - A test made to determine hardness on relatively thick sections of metal by pressing a steel ball of specified diameter into a test specimen under a specified load. This test is seldom used on copper and copper-base alloys. See ASTM E 10.

3) Creep - A test to determine the extension of metallic materials due to the combined effects of temperature, tensile stress, and time. Inherently, it is a long term test not suitable for specification purposes. See ASTM E 22.

4) Cup - A test to indicate the ductility of sheet or strip wherein a cup is drawn from the metal until it fractures. Several modifications of the original Erichsen method are now in use. See ASTM A 344.

5) Endurance - A test to determine the endurance limit of a metal's resistance to fatigue by subjecting a specimen to repeated alternating or pulsating stresses.

6) Expansion (Pin) - A test used to determine the capacity of the tube for expansion and to reveal surface defects by pushing a tapered pin into the open end of a specimen. See ASTM B 153.

7) Flattening - A test made on annealed tube to indicate ductility and freedom from mechanical defects.

8) Hydrostatic - A test to prove soundness and resistance to leakage of tube and pipe under internal water pressure.

9) Impact - A test made to determine the resistance of metals to failure by sudden shock load. See ASTM E 23.

10) Mercurous Nitrate - An accelerated test to indicate the resistance of copper-base alloy products to season cracking. See ASTM B 154.

11) Pneumatic - A test used to prove resistance to leakage of tube or pipe by the application of internal air pressure to the product while submerged in water.

12) Rockwell Hardness - A test to measure hardness by determining the depth of penetration into a specimen of a penetrator under predetermined conditions of test. See ASTM E 18.

13) Tension - A test to determine one or more of the following: tensile strength, yield strength, elongation, and contraction of area. See ASTM E 8.

14) Torsion - A test to determine the strength in torsion by measuring the torque required to twist a specimen of given length through a predetermined angle.

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