GBK precision pipes
seamless GBK steel pipe

GBK precision pipes
GBK precision pipe, seamless GBK pipe

GBK pipe means common annealing without anti-oxidation protection.

We are able to supply high quality cold drawn seamless GBK pipes produced according to the DIN2445 and then annealed without anti-oxidation annealing – pipe annealing in high temperature to get proper metal structure without antioxidation extra protective gas atmosphere inside the furnice.

You need to remember that beacuse we are using “protective gas atmosphere” to produce NBK pipes that proces is slightly more expensive then when GBK pipes or BK pipes, but you recive high quality product.

Adventages of use pipes GBK withe GBK annealing:

  • GBK seamless pipes are the best choice for hydraulic applications – high pressure application because of the price.
  • good hardness
  • dimension tolerance according the DIN standard
  • large range of material avaliable for application type according the Client needs, possible it to use stainless steel too.

Steel types avaliable for GBK precision pipes annealing:

  • carbon steel, special steel (ST35, ST37.4, ST45, ST55, CK45, ST52 according DIN2391) OD = 4 ÷ 60 mm
  • stainless steel (304, 304L, 321, 316, 316L, 347H, 310S, 904L, 800H, S31803) OD = 6 ÷ 532 mm

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