|
A
|
53
|
Pipe, steel, black and hot-dipped, zinc coated welded and seamless
|
|
A
|
105
|
Forgings, carbon steel, for piping components
|
|
A
|
106
|
Seamless carbon steel pipe for high temperatures services
|
|
A
|
179
|
Seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes
|
|
A
|
181
|
Forgings, carbon steel, for general purpose piping
|
|
A
|
182
|
Forged or rolled alloy-steel pipe flanges, forged fittings, and valves and similar parts for high temperature service
|
|
A
|
193
|
Alloy-steel and stainless steel bolting materials for high temperature service
|
|
A
|
194
|
Carbon and alloy steel nuts for bolts for high pressure and high temperature service
|
|
A
|
203
|
Pressure vessel plates, nickel-alloy steel
|
|
A
|
204
|
Pressure vessel plates, molybdene-alloy steel
|
|
A
|
213
|
Seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanges tubes
|
|
A
|
216
|
Carbon steel castings suitable for fusion welding for high temperature service
|
|
A
|
234
|
Piping fittings of wrought carbon steel and alloy steel for moderated and elevated temperature
|
|
A
|
240
|
Heat-resisting chromium-nickel stainless steel plate, sheet and strip for fusion-welded unfired pressure vessels
|
|
A
|
249
|
Welded austenitic steel boiler, superheater, high-exchanger and condenser tubes
|
|
A
|
269
|
Seamless and welded austenitic stainless steel tubing for general service
|
|
A
|
271
|
Seamless austenitic chromium-nickel steel stili tubes for refinery services
|
|
A
|
283
|
Low and intermediate tensile strength carbon steel plates shapes and bars
|
|
A
|
285
|
Pressure vessel plates, carbon steel, low and intermediate-tensile strength
|
|
A
|
312
|
Seamless welded plates austenitic stainless steel pipe
|
|
A
|
320
|
Alloy steel bolting materials for low temperature service
|
|
A
|
333
|
Seamless and welded steel pipe for low temperature service
|
|
A
|
334
|
Seamless and welded carbon and alloy steel tubes for low temperature service
|
|
A
|
335
|
Seamless ferritic alloy steel pipe for high temperature service
|
|
A
|
350
|
Forgings carbon and low alloy steel requiring notch roughness testing for piping components
|
|
A
|
387
|
Pressure vessel plates alloy steel chromium-molybdenum
|
|
A
|
403
|
Wrought austenitic stainless piping fittings
|
|
A
|
409
|
Welded large diameter austenitic steel pipe for corrosive or high temperature service
|
|
A
|
420
|
Pipe fittings of wrought carbon steel and alloy steel for low temperature service
|
|
A
|
515
|
Pressure vessels plates carbon steel for intermediate and higher-temperature service
|
|
A
|
516
|
Pressure vessels plates carbon steel for moderate and lower-plates service
|
|
A
|
537
|
Pressure vessel plate, heat-treated, carbon-manganese-silicon steel
|