UNS N06625: the ideal superalloy for extreme and corrosive environments

UNS N06625®
UNS material N06625, also known as. INCONEL® 625, is a nickel-based superalloy designed to excel in extreme conditions. Due to its high corrosion resistance and its ability to maintain high mechanical properties even at high temperatures, it is now one of the most reliable alloys in the production of specialty fasteners for critical industrial applications.

Bolting in UNS N06625: features and advantages

INCONEL® 625 bolts, screws, nuts, and tie rods are designed to provide superior performance in highly aggressive environments. Key features of hardware made with UNS N06625 include:

  • Exceptional corrosion resistance in marine, chemical and acid environments
  • Mechanical stability up to 980 °C
  • Excellent resistance to fatigue and cyclic thermal stresses
  • High durability in the presence of chlorides and salt solutions
  • Compatibility with high-pressure applications or those subject to mechanical shock

Bolting in UNS N06625 is therefore ideal for industries that require the ultimate in safety and reliability.

Chemical composition and technical properties

UNS material N06625 is composed mainly of nickel (58% minimum), chromium (20-23%), molybdenum (8-10%) and niobium. This formula guarantees:

  • Resistance to pitting, crevice corrosion and stress corrosion cracking
  • Tensile strength: over 827 MPa
  • Elastic limit: greater than 414 MPa
  • Elongation: between 30% and 40%
  • Brinell hardness: about 200 HB

These properties make it a perfect material for critical bolts installed in harsh environments or for joints that require maximum stability over time.

Application areas of bolting in INCONEL® 625

I fastening components made of UNS N06625 are required in various industries, where chemical and mechanical resistance is critical:

  • Offshore installations: for flanges, connections, supporting structures and exchangers immersed in seawater
  • Chemical and petrochemical industry: for reactors, valves, distillation columns subjected to corrosive substances
  • Nuclear and thermoelectric power: bolts for turbines, boilers, and exchangers subjected to extreme thermal cycling
  • Aerospace: fasteners in high temperature zones
  • Naval: screws and nuts for high mechanical stress saline environments

The choice of Inconel 625 hardware ensures operational continuity and reduced maintenance costs over the long term.

Standards and Certifications

Fasteners in UNS N06625 manufactured by MF INOX conform to major international standards:

  • ASTM B446: bars and semi-finished products
  • ASTM B564: forged fittings
  • WERKSTOFF 2.4856: designation according to German standard
  • EN 10204: 3.1 and 3.2 certifications available upon request

All components are produced with full traceability and dedicated documentation to meet even the most stringent requirements of industrial procurements.

Our production: reliability and speed

We at MF INOX make bolts in UNS N06625 both according to drawing and international standards. Our structure allows us to:

  • Making special parts including UN, UNC, UNF, UNJF and metric coarse or fine pitch threads
  • Offer rapid 24/48-hour delivery for emergencies and critical maintenance
  • Support customers with technical assistance in the selection of materials and geometries
  • Shipping worldwide with competitive lead times

The availability of raw material in stock and the experience gained in more than 30 years of business enable us to provide accurate and reliable solutions quickly.

Contact us to receive technical advice or a quote for your INCONEL® 625 (UNS N06625) bolting supply. We are ready to support you in complex projects with certified materials and guaranteed performance.
Share the post

Related articles

Fast shop service

Fast and flexible production to handle emergencies, maintenance and design changes In highly complex industrial settings, an urgent plant downtime

Read more