HF alkylation
Refinery units handling hydrofluoric acid.

Alloy 400 stud bolts to ASTM B164 for seawater, hydrofluoric acid and brackish service, quoted buy-to-order with traceable records.
Alloy 400 is a nickel-copper alloy with good resistance to seawater, brackish water and hydrofluoric acid, widely used in marine and HF alkylation service.
Monel is a trademark of Special Metals. EMG supplies to UNS N04400 and your stated specification.
View the material referenceReference information only. Your specification and the supplied certificates govern; no stock or equivalence is implied.
Refinery units handling hydrofluoric acid.
Seawater pumps, valves and fittings.
Alkali and brine process bolting.
Diameter from 1/4" to 6" or M5 to M150, thread form (UNC/8UN or metric), and length measured per ASME B16.5 / B16.47 or your drawing for Alloy 400.
Specify matched heavy hex nuts, through-hardened washers and any coating, such as Xylan/PTFE, so the kit is quoted as one traceable package.
State EN 10204 3.1 or 3.2, PMI, hardness or impact testing and any project ITP so certificates are confirmed before order.
Send sizes, quantities, nuts, coating, certificates and required date, or attach a line list or drawing. EMG confirms sourcing, records and lead time against your RFQ.
Diameter, thread, length and quantity per line.
ASTM B164 with Alloy 400 heavy hex nuts.
EN 10204 3.1 / 3.2, PMI and testing as specified.