seamless carbon/alloy steel pipes
These pipes are highly resistant to high temperature and corrosive environments. The absolute roughness of astm a335 gr P9 seamless pipe is small, so the size is very accurate.
P11 Pipe is a chromium molybdenum alloy made pipe. It is used in the high temperature services. It is corrosion resistant, strong and ductile. ASTM A335 standard is issued under the fixed designation A 335/A 335M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. ASTM A335 is often called as chrome moly pipe because of the chemical contain of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel and Chromium (or chrome) is the essential constituent of stainless steel.