ASME SA335 P91 elbow

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SA335 P91 elbow is curved connecting pieces that join straight lengths of pipe, commonly at a 90° or 45° angle, allowing obstructions to be avoided in plumbing, ventilation, welding, and automotive applications.
ASTM A335 P91 is the part of ASTM A335, The pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.
ASME Elbow P91
The steel material shall conform to chemical composition, tensile property, and hardness requirements.
ASTM A335 P91 Chemical Compositions(%)
CompositionsData
UNS Designa-tionK91560
Carbon(max.)0.08-0.12
Manganese0.30-0.60
Phosphorus(max.)0.025
Silicon(max.)0.50
Chromium4.00-6.00
Molybdenum0.45-0.65
Other Elements…
Mechanical properties for ASTM A335 P91
PropertiesData
Tensile strength, min, (MPa)415 Mpa
Yield strength, min, (MPa)205 Mpa
Elongation, min, (%), L/T30/20
Material & Manufacture
Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.

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