Pressure-Vessel & Boiler Steel
Pressure-vessel and boiler steels are supplied to specifications that tightly control chemistry, mechanical properties, heat treatment, toughness and testing for pressurized or elevated-temperature service.
Composition & metallurgy
Families include carbon-manganese plate, normalized fine-grain steels, Cr-Mo creep-resistant steels and nickel-alloy steels for low-temperature service.
Common grades and standards
ASTM/ASME A/SA516 Grade 60/65/70, A/SA387 Cr-Mo plate, A/SA537 heat-treated plate, A/SA203 nickel plate, A/SA553 9% Ni plate; EN pressure grades include P265GH, P355NH and alloyed elevated-temperature grades.
Applications
Pressure vessels, boilers, heat exchangers, separators, columns, reactors, storage tanks and energy/process-industry equipment.
Engineering characteristics
Design depends on code allowable stress, temperature, toughness, weldability, PWHT, HIC/SOHIC requirements where relevant, thickness and inspection. Material certification and traceability are essential.
Known manufacturers and producer regions
Europe — Dillinger, Industeel/ArcelorMittal and specialty plate mills; Japan — Nippon Steel, JFE; South Korea — POSCO; India — SAIL, JSW and other qualified plate mills; China — China Baowu and major heavy-plate producers.
Before specifying or purchasing
Confirm governing standard and edition, product form and dimensions, delivery/heat-treatment condition, mechanical properties, toughness, welding requirements, corrosion or wear environment, inspection/NDT, traceability and mill test certification. Manufacturer capability varies by plant and product line.
Element Folio engineering reference. Product names may be trademarks of their respective owners; manufacturer examples are indicative and should be verified against current mill catalogues.
