Fasteners, bolts & nuts

Components in offshore, waste water, sea water desalination and chemical plants with aggressive chloride-containing media e.g. heat exchangers, separator parts, compressor and pump components, turbine blades.

Alloy 718 (UNS N07718) is a high-strength, corrosion-resistant nickel chromium material that offers high strength and excellent corrosion resistance, particularly in H2S and CO2 environments.  For applications requiring higher yield strength, consider our BOHLER L718 API-150ksi, which offers a minimum yield strength of 150 ksi. 718 can be used in high temperatures as it has high temp de-rating factors and maintains strength at elevated temperatures.  Several conditions of 718 API are available at vSM. We offer the NACE/API 6ACRA versions at 120 ksi min yield as well as the 150 ksi high strength version.  Both tempers are suitable for sour service and can be used for pressure containing and pressure controlling equipment in corrosive environments. Typical applications include packers, safety valves, pumps, hangers, connectors, and fasteners. Material Designations Market Grade UNS Alloy 718 API N07718   Standards OTHERS OTHERS API 6ACRA NACE MR0175

Alloy 925 (UNS N09925), commonly known as Incoloy 925, is an age-hardenable nickel-iron-chromium alloy with additions of molybdenum, copper, titanium and aluminum. Alloy 925 is used in numerous applications requiring a combination of high strength and corrosion resistance.  For applications requiring higher strength, explore our Alloy 725, which offers superior mechanical properties and corrosion resistance. The nickel, in conjunction with molybdenum and copper, provides excellent resistance to reducing chemicals and its chromium content renders protection in oxidizing environments.  Because of its resistance to sulfide stress cracking and stress-corrosion cracking in sour crude oil and natural gas, it is used for down-hole and surface gas well components including but not limited to: packers, pump shafts in marine environments, safety valves, hangers, landing nipples and fasteners. Material Designations Market Grade SEL EN UNS Alloy 925 2.4852 NiCr20FeMo3TiCuAl N09925   Standards API ASTM OTHER 6ACRA B805 NACE MR0175

Nickel-base-alloy, creep resistant up to 850°C, and excellent oxidation resistance.

Components for aircraft industry and gas turbines, e.g. shafts, blades and Discs.

Components with required non magnetic properties and resistance to seawater, e.g. for oilfield equipment, pumps, bolts and nuts, valves, fittings, ship Building.

High resistance to pitting, crevice and chloride stress corrosion, high resistance to general corrosion in acids, high corrosion fatigue and erosion corrosion, good weldability, High Pitting Resistance Equivalent Number (>40). Material Designations Market Grade UNS Super-Duplex S32750   Standards ASTM ASTM OTHERS A182 A479 NACE MR0175

Highly stressed components in gas turbines, engines and rockets, such as turbine blades and discs, shafts, pins, bolts, screws, springs, exhaust reheaters, housing components, thrust nozzles. Liners for containers for tube and rod extruding of cooper and copper-alloys (billet temperature higher than 700°C).

Aviation and aerospace industries, nuclear, turbine and general mechanical Engineering.