| SPECIFICATION | MATERIAL | Size range mm | DESCRIPTION | 
        
            | ASTM A213/ ASME SA213 | TP304/304L, 316/316L/316Ti, 310S, 317/317L, 321H, 347/347H | ф 8~508 | Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat Exchanger Tubes | 
        
            | ASTM A312/ ASME SA312 | TP304/304L, 316/316L/316Ti, 310S, 317L, 321H, 347/347H | ф 8~630 | Seamless and Welded Austenitic Stainless Steel Pipes | 
        
            | ASTM A268/ ASME SA268 | TP405, 409, 410, 430 | ф 12~76 | Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service | 
        
            | ASTM A269/ ASME SA269 | TP304/304L, 316/316L, 310S, 317/317L | ф 8~630 | Seamless and Welded Austenitic Stainless Steel Tubing for General Service | 
        
            | ASTM A270/ ASME SA270 | TP304/304L, 316/316L, 310S, 317/317L | ф 8~508 | Seamless and Welded Austenitic Stainless Steel Sanitary Tubing | 
        
            | ASTM A789/ ASME SA789 | S31803, S32205, S32750 | ф 8~219 | Seamless and Welded Ferritic and Austenitic Stainless Steel Tubing for General Service | 
        
            | ASTM A790/ ASME SA790 | S31803, S32205, S32750 | ф 8~219 | Seamless and Welded Ferritic and Austenitic Stainless Steel Pipe | 
        
            | ASTM B677/ ASME SB677 | UNS08904, 08925, 08926 | ф 8~219 | UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube | 
        
            | DIN17458 | X5CrNi18 10, X2CrNi19 11, X5CrNiMo17 12 2, X2CrNiMo17 13 2, X6CrNiTi18 10 | ф 8~508 | Seamless Circular Austenitic Stainless Steels Tubes Subject to Special Requirements | 
        
            | EN10216-5 | 1.4301, 1.4306, 1.4401, 1.4404, 1.4541, 1.4462 | ф 8~508 | Seamless Steel Tubes for Pressure Purposes |