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ASTM A213 T9 Seamless Ferritic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A213 T9 Ferritic Alloy-Steel Seamless Tubes
ASTM A213 T9 Seamless Ferritic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
Standard:ASTM A213/ASME SA213
Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A213 covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes,.
ASTM A213 T9 Seamless Ferritic Alloy-Steel Boiler Tubes sizes and thicknesses usually furnished to this specification are 1 ⁄ 8 in. [3.2 mm] in inside diameter to 5 in [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness.
ASTM A213 T9 Seamless Ferritic Alloy-Steel Boiler Tubes Quick Details
Manufacture:Seamless process ,Hot-finished or Cold-finished
Wall thickness(WT): 0.9 mm——12.7 mm.
Outer diameter (OD): 12.7 mm——127 mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded
Additional Info
Port of Shipment: Tianjin, China
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Surface: Tubes will be varnished (Outside only) to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required
Specification of ASTM A213 T9 Boiler Tubes
| OD (mm) | Wall Thickness(mm) | |||||||||||||
| 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 6 | 6.5-7 | 7.5-8 | 8.5-9 | 9.5-10 | 11 | 12 | |
| Φ25-Φ28 | ● | ● | ● | ● | ● | ● | ||||||||
| Φ32 | ● | ● | ● | ● | ● | ● | ||||||||
| Φ34-Φ36 | ● | ● | ● | ● | ● | ● | ||||||||
| Φ38 | ● | ● | ● | ● | ● | ● | ||||||||
| Φ40 | ● | ● | ● | ● | ● | |||||||||
| Φ42 | ● | ● | ● | ● | ● | |||||||||
| Φ45 | ● | ● | ● | ● | ● | ● | ||||||||
| Φ48-Φ60 | ● | ● | ● | ● | ● | ● | ● | |||||||
| Φ63.5 | ● | ● | ● | ● | ● | ● | ● | |||||||
| Φ68-Φ73 | ● | ● | ● | ● | ● | ● | ||||||||
| Φ76 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| Φ80 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| Φ83 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| Φ89 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| Φ95 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| Φ102 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| Φ108 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| Φ114 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
| Φ121 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
| Φ127 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
Materials and Manufacture
ASTM A213 T9 Seamless Ferritic Alloy-Steel Boiler Tubes are made by the seamless process and shall be either hot finished or cold finished, as specified.
Grain Size
Grain size shall be as given in Table 1,
Grain size determinations, shall be made on one end of one finished tube from each lot.
Heat Treatment:
| Grade |
UNS Number |
Heat Treat Type |
Subcritical Annealing or Tempering Temperature, min or range ºF [ºC] |
ASTM Grain S |
| T9 | S50400 | full or isothermal anneal | … | … |
| normalize and temper | 1250 [675] | … |
2.ASTM Grain Size No. listed, or coarser, unless otherwise indicated.
Chemical Composition of ASTM A213 T9 Seamless Boiler Tubes
| Grade | Chemical Composition(%) | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| A213 T9 | ≤0.15 | 0.30-0.60 | ≤0.025 | ≤0.025 | 0.25-1.00 | 8.00-10.0 | 0.90-1.10 |
Mechanical Properties of ASTM A213 T9 Seamless Boiler Tubes
| Low Alloy Steels | ||||||
| Grade |
UNS Designation |
Tensile Strength, min, ksi [MPa] |
Yield Strength, min, ksi [MPa] |
Elongation in 2 in. or 50 mm,min, % |
Hardness | |
| Brinell/Vickers | Rockwell | |||||
| T9 | K90941 | 60 [415] | 30 [205] | 30 |
179 HBW/ 190HV |
89 HRB |
Hydrostatic or Nondestructive Electric Test
Each tube will be subjected to the nondestructive electric test or the hydrostatic test.
Tests
(1)Tension test——One tension test shall be made on a specimen from one tube for lots of not more than 50 tubes. Tension tests shall be made on specimens from two tubes for lots of more than 50 tubes.
(2)Hardness Requirements—— Brinell, Vickers, or Rockwell hardness tests shall be made on specimens from two tubes from each lot. See (3)Flattening Test——One flattening test shall be made on specimens from each end of one finished tube.
(4)Flaring Test——One flaring test shall be made on specimens from each end of one finished tube.
Surface Condition
ASTM A213 T9 Ferritic alloy cold-finished steel tubes are free of scale and suitable for inspection.
ASTM A213 T9 Ferritic alloy hot-finished steel tubes are free of loose scale and suitable for inspection.
Note: Material furnished under ASTM A213 conform to the applicable requirements of the current edition of Specification A1016/A1016M
STM A213 T9 Seamless Boiler Tubes Marking
In addition to the marking prescribed in Specification ASTM A1016/A1016M, the marking shall indicate whether the tube is hot-finished or cold-finished.
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