This is more commonly referred to as a Bright Annealing (BA) finish. Material with a No. 1 finish is cold rolled using highly polished rolls in contact with the steel surface. This smooths and brightens the surface.
Different from the transitional process technique, we don't acid pickling at the last 2 steps, but directly bright annealing at the optimum temperature. Advantage: Guarantee the accurate thickness, smooth and balanced bright of both inside & outside surface
PMI test to check the material before delivery.
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Stainless Steel Tube Bright Annealing |
- Style: ARound / Oval / Square / Rectangular / Hexagon
- Grade: TP304/304H, 304L, 316, 316L, 316Ti, 310S, 317L, 321/321H, 347/347H, 904L, SAF2205, SAF2507, Incoloy800/825/600, Monel400/K500, NAS 825/800/600/601
- O.D range: Min. 6mm - Max. 2000mm
- W.T range: Min. 0.5mm - Max. 50mm
- Delivery requirment:
- Marking: SunnySteel, material grade, standard, specification, heat no.
- Surface Treatment: Bright annealed, polished outside and inside surface.
- Package: Each pipe in a PVC bag and caps on both ends then bundled in wood case, (option: Bundle with knitted plastic bag/stee crate. )
- Mill test certificate: according to
EN 10204 3.2
- Inspection: Third party inspection, or by clints
