OTG Tech Asia is Malaysia and Korea manufacturer to supply Steel Pipe Flanges.
OTG Tech Asia is export division and joint venture between Malaysia & Korea Steel Pipe Flanges & Pipe Fittings manufacturer. We are ISO 9001 certify manufacturers.

We are supplying steel pipe flanges and steel pipe fittings to domestic and international end-users, contractors (EPC) and trading companies for Oil & Gas, Chemical & Petrochemical, Power Plant and offshore platform.

Type of Flanges Manufacture :

Threaded Flange | Lap Joint Flange | Nozzle | Blind Flange | Socket Weld Flange | Orifice Flange | Slip On Flange | Spectacle Blind | Weld Neck Flange | Long Weld Neck Flange

ASTM Standard

  • Carbon Steel: ASTM A105, A350 LF1, LF2, A266, A694, A765 Gr2 
  • Alloy Steel: ASTM A182 F1, F5, F9, F11, F12, F22, F51, A350- LF3 
  • Stainless Steel: ASTM A182 F304, 304L, F316, 316L, F310, F317L, F321, F347 
  • Duplex Stainless Steel: ASTM  A 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

ANSI | ASME Standard

  • B16.5 | B16.47



Please contact us if you have any query about our products. EMAIL to

steel flange manufacturer -
steel flange manufacturer –