Alloy Steel T91 Tube is immune from sensitisation (grain boundary carbide precipitation). Our Alloy Steel T91 Seamless Tubes are highly used in various industries, owing to their strength and durability. These Alloy Steel T91 Welded Tubes is made available in numerous thicknesses and grades and widely acknowledged for mechanical, structural and other applications. Our Alloy Steel T91 EFW Tubes is known for its Thrifty prices, Excellent performance, Quality assured, Super Strength, Rigid, Excellent working, Non-corrosive, Compact Design, Long Lasting, Component Stability, Best Output, Long lasting life, Non-corrosive properties, Flawless finish, and more. These Alloy Steel T91 ERW Tubes is often used in Power Generation, Nuclear Industry, Aerospace Industry, Chemical Industry, and more. Manufactured from quality raw material, these Alloy Steel T91 Round Tubes are known for its unique features such as smooth surface, tight tolerance, and uniform.
We ensure that our Alloy Steel T91 Square Tubes we offer is put through stringent quality check process which defines its quality to a great extent. Our professionals manufactured these Alloy Steel T91 Rectangular Tubes by using world class material in adherence with international norms. Our Alloy Steel T91 Electropolish Tubes is used in the most critical engineering applications and also in certain applications in the automotive sector. These Alloy Steel T91 Hexagonal Tubes are available in varied sizes as per the needs of the clients.
- Certification: ISO 9001, ISO 14001 & OHSAS 18001
Alloy Steel T91 Seamless Tubes Tolerance
| Outside Diameter |
OD Tolerance |
WT Tolerance |
Ovality Tolerance |
Cut Length Tolerance |
| OD≤ 12, 7 mm |
± 0, 13 mm |
± 15 % |
– |
+ 3, 18 mm, – 0 mm |
| 12, 7 mm < OD ≤ 38, 1 mm |
± 0, 13 mm |
± 10 % |
max, 1, 65 mm |
+ 3, 18 mm, – 0 mm |
| 38, 1 mm < OD ≤ 88, 9 mm |
± 0, 25 mm |
± 10 % |
max, 2, 41 mm |
+ 4, 76 mm, – 0 mm |
Grade T91 Alloy Steel Seamless Tube Chemical Composition
|
C, %
|
Mn, %
|
P, %
|
S, %
|
Si, %
|
Cr, %
|
Mo, %
|
V, %
|
N, %
|
Ni, %
|
Al, %
|
Nb, %
|
|
0.08-0.12
|
0.3-0.6
|
0.02 max
|
0.01 max
|
0.2-0.5
|
8.0-9.5
|
0.85-1.05
|
0.18-0.25
|
0.03-0.07
|
0.4 max
|
0.04 max
|
0.06-0.10
|
AS Gr. T91 Seamless Tubes Mechanical Properties
| Tensile Strength, MPa |
Yield Strength, MPa |
Elongation, % |
Hardness, HB |
| 585 min |
415 min |
20 min |
250 max |
NOTE : OTHER SIZES AND GRADES ARE AVAILABLE UPON REQUEST
ALLOY STEEL SEAMLESS TUBE SPECIFICATIONS
AS Seamless Tubes are available in different grades and standards. Some of the standard features these are made available in include
Dimensions : ASTM
Specifications : ASTM A213
Size : 1/8"NB TO 30"NB IN
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length : Single Random, Double Random & Cut Length
Form : Round, Square, Rectangular, Hydraulic Etc
End : Plain End, Beveled End, Treaded
