Boiler, superheater and heat exchanger seamless ferritic and austenitic alloy steel pipe
ASTMA213 — American Society for Testing and Materials Standards
ASMESA213 — American Society of Mechanical Engineers standards
Seamless Ferritic and Austenitic Alloy-Steel Boiler,Superheater, and Heat-Exchanger Tubes
Boilerand Superheater for minimum wall thickness seamless ferritic and austeniticsteel and austenitic steel heat exchanger.
The main production steel grades:
T11,T12, T22, etc. are negotiated, but also supply other grades of steel.
|Standard||Grade||Tensile strength (MPa)||Yield strength (MPa)||Elongation (%)|
Ferritic alloy cold-finished steel tubes shall be free of scale and suitable for inspection. A slight amount of oxidation is not considered scale.
Ferritic alloy hot-finished steel tubes shall be free of loose scale and suitable for inspection.
Stainless steel tubes shall be pickled free of scale. When bright annealing is used, pickling is not necessary.
Any special finish requirement shall be subject to agreement between the supplier and the purchaser.