ASTM A213 T11 Steel Pipe belongs to seamless ferritic and austenitic steel, ans is suitable for boiler, superheater, and heat-exchanger tubes. Grades containing the letter H in their designation have requirements different from those of similar grades not containing the letter H.
ASTM A213 T11 Steel Pipe provide higher creep-rupture strength than normally achievable in similar grades without these different requirements. The tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified.
ASTM A213 T11 Steel Pipe Chemical Composition:
Grade
|
C
|
Mn
|
P
|
S
|
Si
|
Cr
|
Mo
|
Ti
|
V
|
T11
|
0.05min-0.15max
|
0.3-0.6
|
0.025
|
0.025
|
0.50-1.00
|
1.00-1.50
|
0.44-0.65
|
...
|
ASTM A213 T11 Steel Pipe Mechanical Properties
Mechanical Properties (Mpa)
| |||
Tensile Strength
|
Yield Strength
|
Elongation
|
Delivery condition
|
415Mpa
|
220Mpa
|
30%
|
annealed
|
ASTM A213 T11 Steel Pipe Heat Treatment
Grade
|
Heat Treat Type
|
Austenitizing /solutioning Temperature, min or range
|
Cooling media
|
Subcritical Annealing or Tempering Temperature, min or range °F(°C)
|
T11
|
normalize and temper
|
---
|
---
|
1200°F(°C)
|
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Cooperate with major mills and stockist around the world
Offer ex-stock materials as well as mill delivery with nominal margins
Complete in-house testing facilities viz. Hydro, UT, chemical analysis, bending
Physically mechanical, PMI, microscopic examination, etc.
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