We mainly supply for valves field, stud bolts, nuts and screws according to ASTM Standards, made with the different materials, but we can also supply seeger sealing rings, standard and special keys, hydraulic nipples, standard and “on request” nuts, blind rivets etc. Our service allows us to carry out even for stud bolts and special materials, your urgent requests in 5/10 days (free your warehouse) after order receipt.

Our technical and logistics knowledge by mean on kanban system, can standardise the mainly used items to facilitate the purchasing, even in this field.

TYPES:

Screws UNI 5737,5739,5931,5933 (DIN 931,933,912,7991)
Studs UNI 5909,5911,5914 (DIN 938,939)
“On request” studs
Full threaded stud bolts UNI 6610 (DIN 976)

MATERIALS USED

CARBON STEELS

ASTM A193 B7, B7M, B16, A194 2H, 2HM, Gr. 5, Gr.8, Gr. 7M, ASTM A320L7, L7M, Gr. 7
(please check range and availabilities inside news)

21 CrMoV 5-7, 25 CrMo4

Final surface treatments: galvanisation, HDG, PTFE (XYLAN HYLAR) in different colours

STAINLESS STEELS

X22CrMoV12-1, AISI 304/L, B8, B8X, B8 Class 2, A2-50/70/80, AISI 321, B8T, B8TX, B8T Class 2, AISI 316L, B8M, B8MX, B8M Class 2, A4-50/70/80, AISI 310, AISI 316Ti, AISI 347, AISI 410, B6 URANUS, Grade 660, AISI 420, AISI 431, C3-80  (please check range and availabilities inside news)

DUPLEX & SUPER DUPLEX STAINLESS

UNS S31803 W 1.4462, UNS S32550 FERRALIUM, UNS 32750 SAF 2507, UNS S32760 ZERON 100 SS44 W 1.4460

NICKEL ALLOYS

Monel  400 Monel K500, Inconel 600, Inconel 601, Inconel 625, Inconel 718, Inconel 725, Incoloy 800, Incoloy 800HT, Incoloy 825, Incoloy 925, Incoloy DS, Hastelloy C276, Hastelloy C22, Hastelloy B2, Hastelloy X, Hastelloy B3, Nimonic 75, Nimonic 90, Nickel 200/201

HIGH BRONZE CONTENT ALLOYS AND BRONZE ALUMINIUM

Aluminium Ni Bronze, Aluminium Silicon Bronze, Phosphorus Bronze 90/10 Cupro Nickel, Silicon Bronze 70/30 Cupro Nickel, Hiduron 191, Marinel

OTHER MATERIALS

Durehete 900, Durehete 1055, B7/7, Nitronic 50, Nitronic 60, 17/4PH (630 st.st) FV520B, 254SMO, UNS S31254 904L, W 1.4539, Sanicro 28, W 1.4923, W 1.4418 (248SV), A453, 660° A453, 660b,  Carpenter 20, Aluminium Alloys, Titanius alloys (Grade 2/5 & 7), Zirconium 702/70