Specifications: 
1) Type: duplex and austenitic only 
2) Process method: cold drawn, cold pilgered 
3) Surface finish: annealed, cold pilgered, manual polished, mechanical polished 
4) Size: Φ6 - Φ830mm x Φ0.5- Φ45mm 
   a) OD: Φ6 - Φ830mm 
   b) WT: 0.5 - 45mm 
   c) Length (max.): 17m 
   d) We also produce other specifications according to customers' requirements 
5) Materials: TP304, TP304L, TP310/S, TP316L, TP316/316L dual grade, TP317L,  TP321, TP347, 2205 (S31803), 1805, 2507, 904L 
6) Internal technical standards implemented: GB/T 14975-2002, GB/T 14976-2002, GB 13296-91 
7) Foreign standards implemented (partial): JIS G 3463, JIS 3448, JIS3459, DIN 2462 
8) ASTM (ASME) standards: 
   a) A213, A213M (SA213, SA213M) 
   b) A269, A269M 
   c) A312, A312M (SA312, SA312M) 
   d) A450, A450M (SA450, SA450M) 
   e) A511-96 
   f) A530, A530M (SA530, SA530M) 
   g) A789, A789M (SA789, SA789M) 
   h) A790, A790M (SA790, SA790M) 
9) Applications: 
   a) General service industries(petroleum, food,chemical, paper, fertilizer, 
       fabric, aviation and nuclear, etc) 
   b) Fluid, gas and oil transport 
   c) Pressure and heat transmission 
   d) Construction and ornament 
   e) boiler heat exchangers 
10) OEM available 

Outer packing: 
Wooden cases or plastic bags or according to customers' requests.