Industrial assemblies usually require corrosion resistance hardware along with light weight piping for hostile environments.  A2-70 Bolts  are among the standard components found in fabrication and maintenance specifications. ISO 3506 defines them as austenitic stainless fasteners that come in metric sizes ranging from M4 to M30, have a minimum tensile strength of 700 MPa, and are widely distributed for example via Germany through European supply channels for use in structural frames, enclosures, and equipment skids exposed to moisture.

They are mainly made from AISI 304 or similar grade stainless steel, and the threads on the bolts are cold forged while the profiles are rolled so that the material retains its ductility even at low temperatures. The various types of bolts such as hex head, socket cap, or countersunk with either coarse or fine thread may be specified in the engineering drawings, and these are generally matched with A2 classification nuts and washers that will not cause galvanic corrosion if aluminum or stainless steel are used as the base materials. It is common for process plants to combine stainless steel bolting with highly advanced materials for piping in order to lower the total cost of operation.  Titanium pipe suppliers  is an option in cases where the material needs to withstand chlorides, have a high strength-to-weight ratio, and remain stable at temperatures up to 400°C. This is particularly relevant in heat exchangers, condenser loops, and offshore utility lines covered by ASTM B861 and ASME B31.3.

Procurement teams acquiring titanium infrastructure items for their projects usually take into account the mill tolerance, surface finish, and NDT paperwork when they are ordering Titanium pipe from suppliers, especially in the UAE market where water desalination, chemical processing, and aerospace fabrication require pipes in Grades 2 and 5 both seamless and welded with very precise control of OD and thickness for petrochemical utilities and power projects worldwide under extremely demanding conditions.