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■ Overview
ASTM A213 Grade T91 seamless steel tubes,A213 Grade T91 steel pipes,A213 T91 steel pipes derlivery condition with Normalized and Tempered.Permissible variations from the specified average wall thickness shall be +/- 10% of the specified average wall thickness for cold formed A213 Grade T91 seamless steel tubes.
■ Full Data
Technical Requirements & Additional Services for A213 Gr T91 seamless pipe:
♦ Heat treatment Normalize and Temper,Austenitizing / Solutioning Temperature range 1040-1080 Degree.C.
♦ General requirements for these tubes in A213/A213M shall be comply to A1016/A1016M
♦ Heat treatment Normalize and Temper,Austenitizing / Solutioning Temperature range 1040-1080 Degree.C.
♦ General requirements for these tubes in A213/A213M shall be comply to A1016/A1016M
♦ Hydrostatic test or Nondestructive electric test
♦ Mill test certificate with EN 10204 TYPE 3.1 OR 3.2
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
♦ Mill test certificate with EN 10204 TYPE 3.1 OR 3.2
♦ Surface Protection:Black,Varnish,Hot Dip Galvanized,Coating with shop prime
■ Techicals
►Mechnical property for A213 Grade T91 seamless steel tube:
| A213 Gr T91 steel pipe | |
|
Yield strength (≥Mpa) |
415 |
|
Tensile strength (≥Mpa) |
585 |
►Chemical composition for A213 Grade T91 seamless steel pipe (Heat Analysis Max%)
|
Main chemical elements composition of A213 Grade T91 |
|||||||
|
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
|
0.08-0.12 |
0.30-0.60 |
0.020 |
0.010 |
0.25-0.50 |
0.40 |
8.0-9.5 |
0.85-1.05 |
|
V |
N | Al | Cb | Ti | Zr | ||
|
0.18-0.25 |
0.03-0.07 |
0.02 |
0.06-0.10 |
0.01 |
0.01 | ||
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