Alloy Steel Pipe Heat-Exchanger Cold Drawn Boiler Tubes T5 T9 T11
Torich International Co.,Ltd is specialized in manufacturing Alloy
Steel Grade T5 T9 T11 T12 T22, according to technical standard of
SA213, Standard Specificiation for Seamless Ferritic and Austenitic
Alloy Steel Boiler, Superheater, and Heat Exchanger Tubes.
Covers 2 Points of Wall Thickness Tolerace:
1. Minimum wall thickness
2. Average wall thickness
Pls specify in the enquiry detail.
The Tubing sizes an thickness covers:
OD: 1/8'' (3.2mm) to 5'' (127mm)
WT: 0.015'' to 0.500'' (0.4 to 12.7mm)
Alloy Steel Pipe Heat-Exchanger Tubes SA213 Steel Grades Chemical
Composition and Mechanical Properties:
|Steel Grade||Tensile Strength||Yield Strength||Elongation||Hardness.Max|
|min.ksi [Mpa]||min.ksi [Mpa]||%||Brinell/Vickers||Rockwell|
Mechanical property requirements do not apply to tubing smaller
than 1/8'' (3.2mm) in inside diameter or thinner than 0.015''
(0.4mm) in thickness
Brinell, Vickers or Rockwell hardness tests shall be made on
specimens frrom each lot.
One flattening test shall be made on specimens from each end of one
finished tube, not the one used for flaring test, from each lot.
One flaring test shall be made on specimens from each end of one
finished tube, not the one used for flattening test, from each lot
Ferritic alloy cold-finished steel tubes shall be free of scale and suitable for inspection. A
slight amount of oxidation is not considered scacel.
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 customer and our production teams.
Packing and Container Loading for Alloy Steel Pipe:
ASTM A262 Practices for Detecting Susceptibility to Intergranular
Attack in Austenitic Stainless Steels
ASTM A941 Terminology Relacting to Steel, Stainless Steel, Related
Alloys and Ferroalloys
ASTM A1016/A1016M Specificiation for General Requirements for
Feeritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel
ASTM E112 Test Method for Determining Average Grain Size
alloy steel tubes, austentic stainless steel, boiler tubes,
ferritic stainless steel, heat exchanger tubes, high-temperature
applications,seamlss steel tubes, steel tubes, superheater tubes,
temperature service application-high
Looking for ideal Seamless Heat-Exchanger Tubes Manufacturer &
supplier ? We has a wide selection at great prices to help you get
creative. All the Alloy Steel Round Pipe Grades are quality
guaranteed. We are China Origin Factory of Round Tube Steel. If you
have any question, please feel free to contact us.
Product Categories : Seamless Alloy Steel Tubes
1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring
7~ Machanical Testing in own labs with Tensile Strength, Yield
Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a
perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate
longitudinal and transversal defects.