Fenton, Missouri, sits about 20 miles from downtown St. Louis, and it is where Arch City Steel & Alloy, Inc. has operated its metal supply business since 1992. The firm sells to fabricators, machine shops, turbine repair outfits, and energy producers. It is not a mill. It is a stocking distributor, which, for many buyers, turns out to be the difference between shipping on schedule and writing an email explaining why they cannot.Among the grades held in inventory is Nickel alloy 718 tubing , an age-hardenable Nickel-Chromium material that retains strength near 1,300 degrees Fahrenheit and remains tough down to cryogenic temperatures. Turbine sections, downhole tools, and sour gas service all lean on it. The trouble usually starts with paperwork rather than metallurgy. Alloy 718 is ordered under specific heat-treat conditions, and a shop that accepts solution-annealed tube when the print calls for solution-treated and aged finds out during qualification, not before. Arch City ships with mill test reports and heat lot traceability attached to the material.
"Nobody argues about 718 until the certs come out," a company spokesperson said. "We have had customers send material back to an overseas broker because the heat number stamped on the tube did not match the heat number on the report. That is a scrap loss and a missed delivery in the same afternoon. Cheap metal has a way of getting expensive around week six."
In addition to Nickel alloys, the company stocks stainless, Carbon, chrome moly, and 4130 in pipe, tube, plate, sheet, round bar, and fittings. Stocking points in Missouri, Pennsylvania and Texas cover most of the country on short freight runs. Orders range from a single cut length to full truckloads, and the sales desk buys back surplus inventory from shops that are sitting on material they no longer need.
Engineers seldom get a second chance to specify. Once a tube goes into a hot section or a wellbore, the decision rests with whoever signed the purchase order, and the consequences fall on somebody else's shift. Keeping Nickel alloy 718 tubing with clean documentation on hand takes that gamble off the table early.
About Arch City Steel & Alloy, Inc.
Arch City Steel & Alloy, Inc. distributes Stainless Steel, Nickel alloys, Carbon and Chrome products throughout North America. Its stainless inventory extends to heat-resistant grades, among them 309 Stainless Steel tube , used in furnace parts, kiln hardware, and heat exchangers, where scaling starts chewing through lesser grades at close to 1,900 degrees. For more information, visit https://archcitysteel.com/ .