316L Longitudinal Welded (ERW) Stainless Steel Well Casing Pipe

316L longitudinal welded (ERW) stainless steel well casing pipe

Stainless Steel 316L casings are about (6&3) meters lengths of Stainless Steel material to ASTM
A312 properly annealed and passivized of DN 8INCH with 7.11 mm wall thickness.

Both ends of the casing shall be threaded to API 5B standard buttress threads. One side provided with a seamless coupling to ASTM A 451 mounted hand tight with 3/8" taper in one foot (1/32" in one inch) to reduce the make up torque. Both Seamless and longitudinal welded type casings are available for us.
The connection way of the stainless steel casing/tubing
The API connection way as: BTC/LTC/STC/PL, EUE/EUT
FLANGE connection, threaded flange connection.
The surface treatment of ASTM A312 / A312M Stainless steel casing/tubing
Passivation/pickling
Polishing