Hot Sell ASTM A312 Stainless Steel 316L Casing Pipe:
Stainless Steel Tubing Pipes are about (6&3) meters lengths of Stainless Steel material to ASTM
A312/530 properly annealed and passivized of DN 8 5/8" with 7.11 mm wall thickness.
 
both ends of the casing pipes 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.

the connection wayof the stainless steel 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