Na

* Minimum service temperatures:

Zone 1, 0°F; Zone 2, below 0 to -30°F; Zone 3, below -30 to -60°F. f If yield strength exceeds 65 ksi, reduce test temperature by 15°F for each 10 ksi above 65 ksi. ¿If yield strength exceeds 85 ksi, reduce test temperature by 15°F for each 10 ksi above 85 ksi. a Minimum test value energy is 20 ft-lb. b Minimum test value energy is 24 ft-lb. c Minimum test value energy is 28 ft-lb. dMinimum test value energy is 36 ft-lb.

* Minimum service temperatures:

Zone 1, 0°F; Zone 2, below 0 to -30°F; Zone 3, below -30 to -60°F. f If yield strength exceeds 65 ksi, reduce test temperature by 15°F for each 10 ksi above 65 ksi. ¿If yield strength exceeds 85 ksi, reduce test temperature by 15°F for each 10 ksi above 85 ksi. a Minimum test value energy is 20 ft-lb. b Minimum test value energy is 24 ft-lb. c Minimum test value energy is 28 ft-lb. dMinimum test value energy is 36 ft-lb.

steels are included in the specifications discussed in Art. 1.1.) All the steels included in Table 1.1 are structural-quality steels.

In addition to the usual die stamping or stenciling used for identification, plates and shapes of certain steels covered by A6 are marked in accordance with a color code, when specified by the purchaser, as indicated in Table 1.3.

Steel plates for pressure vessels are usually furnished to the general requirements of ASTM A20 and are referred to as pressure-vessel-quality steels. Generally, a greater number of mechanical-property tests and additional processing are required for pressure-vessel-quality steel.

Steels Color Steels Color
Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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