Power Generation fasteners & bolting.
B16, A453 660 and Inconel bolting for steam turbines, boilers and combined-cycle plants.
Turbine and heat-exchanger bolting runs hot, loaded, and vibrating for years between outages. We machine turbine studs to OEM drawings and B16 heat-exchanger studs with milled hexes — certified to the heat, delivered to the outage schedule.
See where the bolts go.
Shell & Tube Heat Exchanger
Channel cover, girth flange, shell cover and floating head studs and nuts, collar studs, nozzle bolting, tie rods, eye bolts and anchor bolts.
Gate Valve
Bonnet, yoke and end flange studs and nuts, plus gland eyebolts and nuts and handwheel nut.
Gas Turbine
Horizontal joint and fuel gas manifold flange studs and nuts, plus vertical flange bolts and nuts, exhaust frame and diffuser flange bolting, combustor casing and end cover studs, fuel nozzle cap screws, bearing housing cap screws, load coupling bolts and nuts, support and gib key bolts and foundation anchor bolts.
Cooling Tower
Distribution flange studs and nuts, basin anchor bolts, structural connection bolts, fan deck bolting, fan stack segment bolts, torque tube mounting bolts, gear reducer mounting bolts, motor mounting bolts, driveshaft coupling bolts, hub and fan shaft bolting and blade clamp bolts.
Swing Check Valve
Cover, hinge bracket and end flange studs and nuts, plus lifting eye bolt, bleed plug, drain plug, hinge pin and disc nut and lock pin.
Bolted Flange Joint
Stud bolts, heavy hex nuts, through-hardened washers, jackscrews and jam nuts, spectacle blind pivot stud and U-bolts and nuts.
Grades power generation runs on.
ASTM A193 Grade B16
Vanadium-strengthened Cr-Mo bolting that holds its strength where B7 starts to relax — steam turbines, HP steam flanges and hot valve bonnets.
ASTM A453 / ASME SA-453ASTM A453 Grade 660 (A-286)
A-286 bolting for the hottest joints — 130 ksi at room temperature and rated by stress-rupture at 1200 °F, for gas and steam turbines, exhaust and high-temperature process equipment.
ASTM A565 Grade 616422 Stainless Steel (UNS S42200, ASTM A565 Grade 616)
The turbine bolting stainless: 12-chrome steel alloyed with molybdenum, tungsten and vanadium for creep strength to 1200 °F, heat treated to 140 ksi.
ASTM B637 bar · AMS 5662 / 5663 · API 6A CRAInconel 718 (UNS N07718)
The premier high-strength nickel superalloy — 185 ksi tensile and 150 ksi yield from cryogenic temperatures to 1200 °F, with corrosion and sour-gas resistance to match.
Jobs we’ve made in these grades.
