The 50(150)A-BB-26 is a general purpose thermal power/energy laser measurement sensor with a 26mm aperture. It can measure from 40mW to 50W continuously and to 150W intermittently. It can measure energy from 20mJ to 100J. It has the spectrally flat broadband coating and covers the spectral range from 0.19 to 20µm.
ASTM A709/A709M - Standard Specification for Structural Grade 50W [345W], or HPS 50W [HPS 345W] shall not be substituted for Grades 36 , 50  or 50S [345S] without agreement between the purchaser and the supplier. When the steel is to be welded, it is presupposed that a welding procedure suitable for the
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