Seamless Stainless Steel bright annealed tubes are stainless steel seamless pipes and tubes in bright annealed condition. Mother tubes are cold rolled using highly polished rolls in contact with the steel surface, and with high speed cold rolled mills, all these smooths and brightens the surface, reduce the risk of any surface defects.:
▪ Main Standard for Stainless steel bright annealed tubes
- ASTM A 269, ASTM A213, ASTM A312
- EN 10216-5 TC1 / TC2
- PED 97/23/EC, AD 2000
- NACE MR0175/ISO 15156
▪ General Steel Grades for bright annealed tubes
ASTM / AISI: 316 /316L, 304/304L, 321/321H, 316Ti, 347 / 347H,
S31803, S32750,S32760, 2205, 904 / 904L.
EN/DIN: 1.4301/1.4307, 1.4401/1.4404, 1.4541/1.4878, 1.4571,
1.4462, 1.4410, 1.4539
▪ Size Range:
The most popular size range of stainless steel bright annealed tubes is as below: - Outer Diameter: 3 mm to 76 mm;
- Wall thickness: 0.5 mm - 15 mm
- Tolerance: O.D. min. +/-0.03mm, WT min. +/-7.5%. As the tolerance is accuracy, bright annealed tubes mostly are precision stainless tubing.
▪ Main Features:
Different from the traditional production process, our factory cold roll the tubes with high speed rolling machine, and our factory does not pickling the tubes at the last two steps, but directly bright annealing at the optimum temperature. By doing like this, we can guarantee the accurate thickness, smooth and balanced bright of both inside & outside surface of the tubes.
▪ Main Application:
Bright annealed tube is widely used in instruments, machinery, equipment, in various industries such as chemical, petrol, gas, automobile, ship building, off shore, and so on.