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ASTM A213 T11 Seamless Alloy-Steel Boiler Tubes
ASTM A213 T11 Seamless Alloy-Steel Boiler Tubes
Grade T11 is a steel grade of ASTM A213 Standard Specification
ASTM A213 T11 for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super heater, Heat-Exchanger Tubes.
Standard:ASTM A213
ASTM A213/A213M Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes.
ASTM A213 T11 Seamless 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 or, if specified in the order, average wall thickness. Tubing having other diameters may be furnished.
ASTM A213 T11 Alloy Seamless Steel Pipe Quick Details
Company Name: beite steel pipe
Country/Region: China
Product Name:ASTM A213 T11 Alloy Seamless Steel Pipe
Manufacturing process: Hot finished or Cold finished
Types:Seamless Steel Pipe
Package: Bundles ,Wooden Boxes,Crates (steel/wooden)
FOB Price: US $1000-1800 / Ton | 1 Ton/Tons (Min. Order)
Port of Shipment:Tianjin,China
Payment:L/C or T/T
Delivery: 7-15 days after payment
Package:Standard export package,suit for all kinds of transport, or as required
Certificate:ISO 9001-2000,PED 97/23/EC,ASME,DNV
ASTM A213 T11 Alloy Seamless Steel Pipe Dimensional Range & Specification
Outside Diameter:12.7mm--127mm
Wall thickness:0.9mm--12.7mm
Length:6000mm,12000m or specified length as required.
Materials and Manufacture
Manufacture and Condition-Tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified.
Available Size Tolerance
ASTM A213 T11 Alloy Seamless Steel PipeOutside Diameter & Tolerance
| Hot rolled |
| Outside Diameter, mm |
Tolerance, mm |
| OD≤101.6 |
+0.4/-0.8 |
| 101.6 |
+0.4/-1.2 |
| Cold Drawn |
| Outside Diameter, mm |
Tolerance, mm |
| OD<25.4 |
±0.10 |
| 25.4≤OD≤38.1 |
±0.15 |
| 38.1 |
±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 |
+0.38/-0.64 |
ASTM A213 T11 Alloy Seamless Steel Pipe Wall thickness & Tolerance
| Hot rolled |
| Outside Diameter , mm |
Tolerance, % |
| OD≤101.6, WT≤2.4 |
+40/-0 |
| OD≤101.6, 2.4 |
+35/-0 |
| OD≤101.6, 3.8 |
+33/-0 |
| OD≤101.6, WT>4.6 |
+28/-0 |
| OD>101.6, 2.4 |
+35/-0 |
| OD>101.6, 3.8 |
+33/-0 |
| OD>101.6, WT>4.6 |
+28/-0 |
| Cold Drawn |
| Outside Diameter , mm |
Tolerance, % |
| OD≤38.1 |
+20/-0 |
| OD>38.1 |
+22/-0 |
Mechanical Properties
ASTM A213 T11 Alloy Seamless Steel Pipe Mechanical & Physical Properties
| Grade |
Mechanical property |
| Tensile Strength(MPa) |
Yield Strength(MPa) |
Elongation(%) |
Hardness(HB) |
| A213 T11 |
≥415 |
≥205 |
30 |
≤179 |
Tests and Inspection
Hardness Requirementx:
Brinell, Vickers, or Rockwell hardness tests shall be made on specimens from two tubes from each lot.
Flattening Text-One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.
Flaring Text-One flaring test shall be made on speci- mens from each end of one finished tube, not the one used for the flattening test, from each lot.
Mechanical property requirements do not apply to tubing smaller than 1⁄8 in. [3.2 mm] in inside diameter or thinner than 0.015 in. [0.4 mm] in thickness.
Hydrostatic or Nondestructive Electric Test
Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.
Forming Operations
Tubes, when inserted in a boiler or tube sheet, shall stand expanding and beading without showing cracks or flaws. Superheater tubes when properly manipulated shall stand all forging, welding, and bending operations necessary for appli- cation without developing defects.
ASTM A213 T11 Alloy Seamless Steel Pipe Chemical Composition(%)
| Grade |
Chemical Composition(%) |
| C |
Mn |
P |
S |
Si |
Cr |
Mo |
| A213 T11 |
≤0.15 |
0.30-0.60 |
≤0.025 |
≤0.025 |
0.50-1.00 |
1.00-1.50 |
0.44-0.65 |
An analysis of either one billet or one tube shall be made from each heat. The chemical composition thus deter- mined shall conform to the requirements specified.
Grain Size
Grain size determinations shall be made on one end of one finished tube from each lot.
Surface Condition
Pickling or shot blasting, Passivated, Black Phosphating.
Heat Treatment :
| HR:hot rolled |
CW:cold worked |
SR:stress relieved |
| A:annealed |
N:normalized |
HF |
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