Sour gas
Severe H₂S and chloride environments.

Alloy C-276 heavy hex nuts (UNS N10276) for severe sour gas, acid and chloride service, quoted buy-to-order with full traceability.
Buy-to-order
Quoted per RFQ
EN 10204 3.1 / 3.2
C-276 is a nickel-molybdenum-chromium alloy with strong resistance to pitting, crevice corrosion and many aggressive chemicals.
Specify bar standard, heat treatment, PMI and certification. C-276 is often quoted with matched studs for complete corrosion-resistant joints.
Reference information only. Your specification and the supplied certificates govern; no stock or equivalence is implied.

Severe H₂S and chloride environments.
Acid and chlorine processing.
Scrubber and FGD equipment.



Nominal size from 1/4" to 6" or M5 to M150, thread pitch (UNC/8UN or metric) and quantity per line.
Pair with Alloy C-276 stud bolts; state coating such as zinc, HDG or Xylan/PTFE and any oversize tapping.
EN 10204 3.1 or 3.2, hardness, proof load, PMI or impact testing as your specification requires.
Send sizes, quantities, matched studs, coating, certificates and required date, or attach a line list or drawing. EMG confirms sourcing, records and lead time against your RFQ.