RapidBoltAcid plant
Sulphuric and phosphoric acid process bolting.
Nickel-iron-chromium alloy
Incoloy 825 Stud Bolts
Alloy 825 stud bolts to ASTM B425 for sulphuric and phosphoric acid and sour service, quoted buy-to-order with EN 10204 3.1 certificates.
BUY-TO-ORDER SUPPLYLEAD TIME QUOTED PER RFQEN 10204 3.1 / 3.2 RECORDS
GRADE OVERVIEW
Alloy 825 stud bolts, specified correctly.
Alloy 825 resists reducing and oxidising acids, chloride stress corrosion cracking and pitting, which makes it common in acid plant and sour oil and gas service.
Incoloy is a trademark of Special Metals. EMG supplies to UNS N08825 and the stated specification.
View the material reference- GRADE
- ASTM B425
- UNS / TYPE
- UNS N08825
- MATCHED NUT
- Alloy 825 heavy hex nuts
- SIZES
- 1/4"–6" · M5–M150
Reference information only. Your specification and the supplied certificates govern; no stock or equivalence is implied.
WHERE IT IS SPECIFIED
Typical applications
Oil & gas
Sour-service flanges and clad equipment.
Nitrates & fertiliser
Corrosive process equipment and piping.
WHAT TO PUT ON YOUR RFQ
Quoted right the first time.
01
Size & length
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 825.
02
Nuts, washers & coating
Specify matched heavy hex nuts, through-hardened washers and any coating, such as Xylan/PTFE, so the kit is quoted as one traceable package.
03
Records & inspection
State EN 10204 3.1 or 3.2, PMI, hardness or impact testing and any project ITP so certificates are confirmed before order.
QUESTIONS
Alloy 825 FAQs
REQUEST A QUOTE
Send your Alloy 825 requirement.
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.
Sizes & lengths
Diameter, thread, length and quantity per line.
Grade & nuts
ASTM B425 with Alloy 825 heavy hex nuts.
Records
EN 10204 3.1 / 3.2, PMI and testing as specified.
RELATED GRADES