Alexander Comley Ltd

Alexander Comley Ltd




The most common product required alongside flanges are studbolts, hex nuts and washers. Primarily, the materials are petrochemical grade and are supplied to specific needs as sought eg PED, NORSOK, NACE etc. The fastening components within the installed flange system provides the force to halt system leakage.

Studbolt example material grades include: 304/H/L, 316/L/Ti, 321/H, 347/H, B7/M, L7/M, B8/M/T/C Cl. 1 & 2, 660 A/B/D, 31803, 32760/SA/FG/FLT

Hex Nut example material grades include: Gr.8/M/A/MA/T/C, 2H/M, Gr.4, Gr.7, 660 A/B/D, 31803, 32760

Thread form can be offered to suit eg UNC, UN8, UNF, BSF, BSW, metric

Additional process’s such as coating can be undertaken. Examples include: PTFE (Teflon, Xylar 1, Xylan 1070/1024), Zinc, Hot Dipped Galvanizing

Because of Alexander Comley’s reputation as a non standard manufacturing company it is common place for flanges to be in exotic non standard materials. The fastening requirements are a part of this

Other material grade examples include: Alloy 20, 200, 400, K500, Inconel 600/625/718/800/925, 31803 (Duplex), 32760 / 32750 (Super Duplex), Aluminium bronze

Should it be additionally sought further testing etc can be performed

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