Specification :

01. Commodity name : Seamless Austenitic Stainless-steel boiler, superheater and heat-exchanger tubes.

02. Process method: cold drawn/cold pilger

03. Surface finish: annealed/cold pilger.

04. Material: S31803, 304, 304L, 310/S, 316L, 316/316L dual grade, 317L,321 with corresponding GB, ANSI, EN, JIS, BS&ISO Material designations.

05. Standards: JIS G3463, DIN17456/58, DIN2462, ASTM(ASME) A/SA 213/M, A/SA780, BS3059/3603& GB/T13296.

06. Size (ASTM/ASME size as under, other standerds of size is for ready choice)

a) O.D.: 1/4" to 3"

b) W.T.: 10BWG, 12BWG, 14BWG, 16BWG, 18BWG, 20BWG, 22BWG

07. Length: max.13 meters
08. Delivery conditions: annealed and pickled

09. Applications: for boiler, superheater and heat-exchanger service.

10. Packing: Plastic bags for each piece then packed in seaworthy wooden cases.

11. Min order quantity: 10 metric tons or upon negotiation.

12. Delivery date: Acoording to order.

Remark: When steel product must be accurated in size and must have a smooth surface, the cold rolling process be used.