RapidBolt
Subsea & offshore
Seawater-exposed flange and structural bolting.
Super duplex stainless
Super Duplex 2507 Heavy Hex Nuts
Super Duplex 2507 heavy hex nuts (UNS S32750) for seawater, subsea and aggressive chloride service, quoted buy-to-order with full records.
SUPPLY
Buy-to-order
LEAD TIME
Quoted per RFQ
RECORDS
EN 10204 3.1 / 3.2
GRADE OVERVIEW
Super Duplex 2507 nuts, specified correctly.
Super duplex 2507 has higher alloy content than 2205, giving a higher pitting resistance equivalent for seawater and aggressive chloride exposure.
Specify PREN minimums, ferrite range, corrosion testing and any NORSOK M-650 requirement so material and records are confirmed before order.
- GRADE
- ASTM A194 / A276 / A479 or project specification
- MATERIAL
- UNS S32750 super duplex stainless steel
- MATCHED STUD
- Super Duplex 2507 stud bolts
- SIZES
- 1/4"–6" · M5–M150
- FORM
- Heavy hex, to ASME B18.2.2 or your drawing
Reference information only. Your specification and the supplied certificates govern; no stock or equivalence is implied.
WHERE IT IS SPECIFIED01 02 03
Typical applications
Desalination
High-chloride brine systems.
Firewater
Seawater firewater ring mains.
WHAT TO PUT ON YOUR RFQ
Quoted right the first time.
Size & thread
Nominal size from 1/4" to 6" or M5 to M150, thread pitch (UNC/8UN or metric) and quantity per line.
Matching studs & coating
Pair with Super Duplex 2507 stud bolts; state coating such as zinc, HDG or Xylan/PTFE and any oversize tapping.
Records & testing
EN 10204 3.1 or 3.2, hardness, proof load, PMI or impact testing as your specification requires.
QUESTIONS
Super Duplex 2507 FAQs
REQUEST A QUOTE
Send your Super Duplex 2507 nut requirement.
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.
ISO 9001:2015 quality-managed supply
RELATED GRADES
