Materials

Starline is only using Forged Materials of European Origin for production of All its Products. Thanks to the massive production of more than 200.000 valves /Year in our warehouse are regularly stocked more than 300.000 forgings in the different executions and materials. In order to avoid management of too many special materials requirements everywhere it has been possible Starline has standardized on its Purchase Material Data Sheets (STMDS) the most used and common requirements.
Today every purchased and stocked material as a minimum include the full compliance to the following:
ASTM – NACE MR 0175 – NACE MR103 – PED – NORSOK – SHELL
In presence of special requirements of course Starline is able to purchase and supply valves/materials fully matching the Customer and Projects requirements.
Here below a list of the most commonly used materials for body and trims:

A105/LF2 Dual Certified
LF3 – LF6
F9-F11-F22-F60-F65
F316/F316L Dual Certified
F304(L) – F321 – A410-A420
17.4PH
F51-F53-F55
MONEL K500
ALLOY 625 – 825 – 718 – 926
ALLOY 20 – C22 – C276
NITRONIC 50
TITANIUM GR.2 – GR.5
B148 GR9A – C95800 – C95500 – B62 – C63000

Bolts are available in the standard L7(M) – B8(M) grades and special grades like Gr.660 – F51 – F55.
Surface treatment can be Zinc Plating – Zinc and Bi-Chrome – Hot Dip Galvanized. All bolts can be provided with PTFE/Xylan Coating in every possible different colour as per Customer request.