Welded Steel Tanks & Fabrication Services in Phoenix, AZ

AmTech provides comprehensive services for above-ground atmospheric storage tanks (ASTs), including petroleum storage tanks for crude oil, diesel, gasoline, and jet fuel; chemical storage tanks for corrosive and alkaline substances; water storage tanks for potable water, fire suppression, and HVAC systems; and industrial process tanks for manufacturing facilities. We handle both new tank fabrication and structural repairs on existing tanks, with all work performed to API 653, NFPA, and ASME standards by engineer-supervised field crews.

Our API 653-compliant process begins with ultrasonic thickness testing to map corrosion depth and identify perforated areas. Damaged steel sections are cut out and new steel is precision-welded in place by certified welders. The entire tank bottom is then abrasive-blasted to achieve the required surface profile before we install either a fiberglass-reinforced polymer (FRP) floor pan or our proprietary DuraChem® 500 series polylining floor pan. The instant-cure DuraChem system creates a seamless, corrosion-resistant barrier that bonds monolithically to steel, requires no extended cure time, and significantly reduces tank downtime compared to traditional multi-coat systems.

Our field crews employ multiple surface preparation techniques selected based on tank material, corrosion extent, and environmental conditions. Methods include dry abrasive blasting (sandblasting) with media such as garnet or aluminum oxide; wet abrasive blasting to minimize dust in occupied facilities; hydroblasting for removing loose coatings and scale; and chemical cleaning for specific contaminants. All preparation work achieves SSPC-SP5 White Metal, SSPC-SP6 Commercial Blast, or SSPC-SP10 Near-White Blast standards as required by the specified lining system. Crews verify surface profile, ambient temperature, dew point, and humidity before coating application to ensure maximum adhesion and prevent premature failure.

Yes, AmTech maintains rapid-response emergency services throughout Phoenix and the Valley for unexpected tank failures including active leaks, corrosion breakthroughs, structural cracks, nozzle blowouts, and lining failures. Our mobile crews deploy with welding equipment, instant-cure DuraChem® repair materials, fiberglass laminate systems, and PLS 755 Tank Tape for temporary leak sealing. The emergency response includes rapid damage assessment, temporary containment, structural steel welding repairs, protective lining application, and verification testing before returning the tank to service. This minimizes facility downtime, prevents environmental incidents, and helps maintain regulatory compliance during critical failures.

DuraChem® 500 series is a proprietary 100% solids polylining system that cures instantly on contact, eliminating the multi-day cure times required by traditional epoxy or vinyl ester coatings. The system produces zero VOCs during application, making it ideal for occupied facilities and environmentally sensitive areas. It bonds monolithically to steel substrates with no seams or overlap areas that could become failure points, creating a seamless chemical-resistant barrier. Tanks can often return to service the same day or next day, dramatically reducing downtime costs. The cured lining resists aggressive chemicals, fluctuating pH levels, hydrogen sulfide exposure, and abrasive suspended solids common in wastewater and chemical storage applications.

Yes, many older tanks lack adequate human access points for inspection and maintenance. AmTech welds industry-standard 22-inch manways with 18-bolt covers onto existing single-wall or double-wall steel tanks. This retrofit provides code-compliant access under API, NFPA, and local regulations, enabling future inspection, cleaning, lining application, and maintenance work. The manway installation extends tank service life by facilitating regular maintenance that would otherwise be impossible, helping Phoenix facilities maintain regulatory compliance and avoid costly premature tank replacement.

For Phoenix's high-temperature environment, AmTech recommends coating systems based on stored product and operating conditions. For hot water storage and thermal systems, our HydraStone Alkrete® cementitious lining withstands temperatures up to 900°F while resisting softened water chemistry that accelerates corrosion. For petroleum and chemical storage, DuraChem® 500 series polylinings provide superior chemical resistance with instant cure properties. For external tank surfaces exposed to Arizona's intense UV radiation and thermal cycling, we specify Armor Shield® coating systems engineered for extreme weather durability. All recommendations are backed by field engineering assessment of tank service conditions and thermal expansion considerations.

Project duration varies by tank size, service conditions, and required repairs, but AmTech's instant-cure DuraChem® systems significantly reduce timeline compared to traditional coatings. A typical above-ground storage tank project includes 1-2 days for inspection and surface preparation via abrasive blasting, 1 day for structural welding repairs if needed, 1 day for DuraChem® polylining application (which cures instantly), and verification testing before return to service. Total project duration is typically 3-5 days versus 7-14 days for conventional multi-coat epoxy systems requiring extended cure time between coats. Emergency repairs can be completed even faster when facility operations demand immediate restoration.