Commodity description: seamless austenitic alloy-steel boiler,superheater and heat-exchanger tubes.
●　Applications:Boilers, heat exchangers, super heaters, condensers, and catalytic tubes, refining furnaces etc.
●　Process method: Cold drawing/Cold rolling.
●　Standards: ASTM/ASME A213/SA213, A269/SA269, A312/SA312; DIN17456/DIN17458; EN10216-5; JIS G3463/G3459; GOST 9941-81
●　Steel Grade: TP304/304L, 316/316L, 316Ti, 321/321H, 310S, 347/347H
●　Size (ASTM/ASME size as under, other standards of size is for ready choice)
　 a. O. D.: 3.18mm to 114.3mm
　 b. W. T.: 0.3mm to 8.64mm
●　Length: Random length or fixed length
●　Delivery conditions: Annealed & Pickled; Annealed & Pickled+Polished
●　Packing:Plastic bags for each bundle then packed in seaworthy wooden cases.
●　Marking:Standard,material grade, specification,heat No.,WILLED
●　Mill test certificate: according to EN 10204 3.1 thomasyang83#hotmail.com