ASTM A269 TP316/316L Stainless Steel Tube Seamless Heat Exchanger Tubes The bright-annealed bore is what separates this SKU from our pickled seamless and welded A269 options. Pickling leaves a matte surface around Ra 1.5–3.0 µm; bright annealing holds Ra ≤ 0.4 µm (16 µin) typical. In a shell-and-tube, U-tube or small-diameter exchanger this is measurable: fewer nucleation sites for deposit build-up, a lower fouling resistance after the first operating cycle, less pressure
It's genuine 321H — titanium-stabilized, so no worries about sensitization or intergranular corrosion during welding. Our welder said it welded nicely with no cracking.
Notation globale
Capture d'écran de notation
Voici la répartition de toutes les évaluations.Toutes les critiques