6mm Alloy Steel Boiler Tube Astm A213 T11 Asme Sa213 T11 Seamless
ASTM A213 T11 ASME SA213 T11 SEAMLESS ALLOY STEEL BOILER TUBE
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 T11 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 T11 Seamless Ferritic Alloy-Steel Boiler Tubes Quick Details
Manufacture:Seamless process ,Hot-finished or Cold-finished
Wall thickness(WT): 1.24 mm——60 mm.
Outer diameter (OD): 10.3 mm——762 mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End
Additional Info
Port of Shipment: Tianjin or qingdao or shanghai port, China
Payment Terms:T/T
Surface: Black painting or varnished
Package: Bundles or as required
ASTMA213T11 seamless boiler tube(Chemical composition) Mechanical properties
| Grade | Chemical composition(%) | ||||||
| C | MN | P | S | SI | CR | MO | |
| A213T11 | 0.05-0.15 | 0.30-0.60 | ≤0.025 | ≤0.025 | 0.50-1.00 | 1.00-1.50 | 0.45-0.65 |
ASTMA213T11 seamless boiler tube(Mechanical properties)
| Grade | Tensile Strength,min,ksi/Mpa | Yield Strength,min,ksi/Mpa | Elongation in 2in,or 50mm,min,10% | Hardness | |
| 60[415] | 30[205] | 30 | HV | HRB | |
| A213T11 | 190 | 89 | |||
ASTM A213T11 seamless boiler tube ourside diameter
| Hot rolled | Outside Diameter, mm | Tolerance, mm |
| OD≤101.6 | +0.4/-0.8 | |
| 101.6<OD≤190.5 | +0.4/-1.2 | |
| 190.5<OD≤228.6 | +0.4/-1.6 | |
|
Cold Drawn/ Cold rolled |
Outside Diameter, mm | Tolerance, mm |
| OD<25.4 | ±0.10 | |
| 25.4≤OD≤38.1 | ±0.15 | |
| 38.1<OD<50.8 | ±0.20 | |
| 50.8≤OD<63.5 | ±0.25 | |
| 63.5≤OD<76.2 | ±0.30 | |
| 76.2≤OD≤101.6 | ±0.38 | |
| 101.6<OD≤190.5 | +0.38/-0.64 | |
| 190.5<OD≤228.6 | +0.38/-1.14 |
ASTM A213T11 seamless boiler tube wall thickness
| Hot rolled | Outside Diameter, mm | Tolerance, % |
| OD≤101.6, WT≤2.4 | +40/-0 | |
| OD≤101.6, 2.4<WT≤3.8 | +35/-0 | |
| OD≤101.6, 3.8<WT≤4.6 | +33/-0 | |
| OD≤101.6, WT>4.6 | +28/-0 | |
| OD>101.6, 2.4<WT≤3.8 | +35/-0 | |
| OD>101.6, 3.8<WT≤4.6 | +33/-0 | |
| OD>101.6, WT>4.6 | +28/-0 | |
|
Cold Drawn/ Cold rolled |
Outside Diameter, mm | Tolerance, % |
| OD≤38.1 | +20/-0 | |
| OD>38.1 | +22/-0 |
Length:5800mm,6000mm,6096mm,7315mm,11800mm,12000mm and so on.
U bending can be offered.
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.
(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 T11 Ferritic alloy cold-finished steel tubes are free of scale and suitable for inspection.
ASTM A213 T11 Ferritic alloy hot-finished steel tubes are free of loose scale and suitable for inspection.
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