AISI 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. Similar to grade AISI 4130 but with a slightly higher carbon content.
ASTM A519- specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished.
Boiler Steel Pipes & Tubes are widely used in the industries of petrochemical refinery, electric power, economizer, heat-exchanger, super-heater …etc.
ASTM A53 Standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless.
ASTM A-106 is the standard for seamless carbon steel pipes designed for High-temperature services.
JIS G3458 Standard is made for heat resistant alloy steel pipes that are used for high temperature conveying fluid pipes for heaters and boiler tubes.
ASTM A178/A 178M Standard Specification for Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes
ASTM A513 Type 2 is produced from hot rolled strip steel that has been cold reduced.
Seamless and welded austenitic stainless steel tubing for general service.
A 249 / SA 249 Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes