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2. AL-6XN - Wikipedia

   en.wikipedia.org/wiki/AL-6XN

   AL-6XN (UNS designation N08367) is a type of weldable stainless steel that consist of an alloy of nickel (24%), chromium (22%) and molybdenum (6.3%) with other trace elements such as nitrogen. The high nickel and molybdenum contents of the AL-6XN alloy give it good resistance to chloride stress- corrosion cracking.

3. List of welding codes - Wikipedia

   en.wikipedia.org/wiki/List_of_welding_codes

   Heating practices for pipe and tube AWS D10.11: Root pass welding for pipe AWS D10.12: Pipe welding (mild steel) AWS D10.13: Tube brazing (copper) AWS D10.18: Pipe welding (stainless steel) AWS D11.2: Welding (cast iron) AWS D14.1: Industrial mill crane welding AWS D14.3: Earthmoving & agricultural equipment welding AWS D14.4: Machinery joint ...

4. Duct (industrial exhaust) - Wikipedia

   en.wikipedia.org/wiki/Duct_(industrial_exhaust)

   Ducts can be fabricated from a variety of materials including carbon steel, stainless steel, PVC, and fiberglass. [1] They can be fabricated through rolling (preferable for ducts of 12" or more in diameter) or extruded (for ducts up to 18"). [2] HVAC systems do not include this category of industrial application, namely exhaust systems. A ...

5. Process duct work - Wikipedia

   en.wikipedia.org/wiki/Process_Duct_Work

   For ductwork operating above 800 degrees F, duct plate material should resist warping. Either Core-ten or ASTM A304 stainless steel may be used for duct plate between 800 °F and 1200 °F, Core-ten plate is less expensive than stainless steel. Corten steels have essentially the same yield stress ratios as Corten through 700 °F.

6. Unified numbering system - Wikipedia

   en.wikipedia.org/wiki/Unified_numbering_system

   Many material or standard specifications include a number of different UNS numbers that may be used within that specification. For example: UNS S30400 (SAE 304, Cr/Ni 18/10, Euronorm 1.4301 stainless steel) could be used to make stainless steel bars ( ASTM A276 ) or stainless steel plates for pressure vessels ( ASTM A240 ) or pipes ( ASTM A312 ).

7. Duct (flow) - Wikipedia

   en.wikipedia.org/wiki/Duct_(flow)

   Round duct is made using a continuous spiral forming machine which can make round duct in nearly any diameter when using the right forming die and to any length to suit, but the most common stock sizes range evenly from 4" to 24" (10-60 cm) with 6"-12" (15-30 cm) being most commonly used. Stock pipe is usually sold in 10' (300 cm) joints.