| Types | Seamless or welded tubes, “Non-Circumferential welding 6000mm/PCS(Straight welded pipe The length is 6000mm)” | 
| Standards | ASTM B523/B523M-07;ASME SB-523;ASTM B658/B658M-11;ASME SB-658/SB-658M 
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| Size | Outside diameter: 1/2'' - 24" (21.34-609.5mm) wall thickness: sch 5S, 10S, 40S (STD), 80S (XS), 160S (XXS) (1.65-59.51mm) | 
| Materials | UNS R60700; UNS R60702; UNS R60704; UNS R60705; UNS R60706 | 
We have following pipe and tubes for Heat Exchanger tubes:
| Outside Diameter mm | Wall Thickness mm | Standard | 
| 38.0 | 1.50 | ASTM B523 (Seamless) | 
| 50.8 | 0.89 | ASTM B523 (Seamless) | 
| 60.3 | 0.89 | ASTM B523 (Seamless) | 
| 70.0 | 1.00 | ASTM B523 (Seamless) | 
| 76.1 | 1.20 | ASTM B523 (Seamless) | 
| 89.0 | 1.20 | ASTM B523 (Seamless) | 
| 101.6 | 1.60 | ASTM B523 (Welded) | 
Standards ASTM B653 ASME SB653 ASME B16.9 ASME B16.25 MSS SP-43 Dimensions Outside diameter: 1/2'' - 24"
Types Concentric |Eccentric seamless or welded Standards ASTM B653 ASME SB653 ASME B16.25
Types equal & reducing seemless/welded Standards ASTM B653 ASME SB653ASME B16.9 ASME B16.2
Types 90° & 45° seamless or welded Standards ASTM B653 ASME SB653 ASME B16.9 ASME B16.25 MSS SP
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