Sachiya Steel International is a known manufacturer of Alloy Steel T91 Tube, which is rich in cobalt and shares many of the wear characteristics of the cobalt – based alloys. Our Alloy Steel T91 Seamless Tubes can be solution treated at 1065 Degree C (1950 Degree F) and then rapidly quenched in normal conditions that require product forms to be furnished and used.
Alloy Steel T91 Tube Manufacture
In cases where bright annealed product forms such as sheet and strip are required, these Alloy Steel T91 Welded Tubes can be solution treated at 1149 Degree C (2100 Degree F) and then cooled in a hydrogen atmosphere so as to avoid oxidation of the bright surface. Furthermore, our Alloy Steel T91 EFW Tubes offers improved resistance to heat zone corrosion attack and to stress corrosion cracking when compared to other alloys.
At the same time, by control of carbon and nitrogen, and careful selection of chromium, molybdenum, and tungsten levels, corrosion properties of many of the nickel – based alloy, such as of these Alloy Steel T91 ERW Tubes, have been attained.
Industry users like the resistance of our Alloy Steel T91 Round Tubes to a wide range of organic acids and the resistance to chloride – induced stress – corrosion cracking. These Alloy Steel T91 Square Tubes resists the formation of grain boundary carbide precipitates in the weld heat – affected zone, making it suitable for most chemical process applications in the as-welded condition.
Alloy Steel T91 Seamless Tubes Specifications |
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| Specifications | : | ASTM A/ASME SA213, A691 |
| Dimensions | : | ASTM, ASME and API |
| Tubes Size |
: | 1 / 2” OD up to 5” OD, customs diameters also available |
| Outer Diameter | : | 6-2500mm; WT:1-200mm |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | : | Seamless / EFW / Fabricated |
| Form | : | Round, Square, Rectangular, Hydraulic Etc |
| Length | : | Single Random, Double Random & Cut Length. |
| End | : | Plain End, Beveled End, Treaded |
T91 Alloy Steel Tube Chemical Composition
|
Grade
|
C≤
|
Mn
|
P≤
|
S≤
|
Si≤
|
Mo
|
|---|---|---|---|---|---|---|
|
T91
|
0.07~0.14
|
0.30~0.60
|
0.02
|
0.02
|
0.20~0.50
|
0.85~1.05
|
Alloy Steel T91 Tubes Mechanical Properties
| Grade | Tensile Strength, MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| T91 | 585 min | 415 min | 20 min | 250 max |
Alloy Steel T91 Seamless Tube Outside Diameter and 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 |
Alloy Steel T91 Tubes Packaging
Alloy Steel T91 Seamless Tube may be furnished bare or coated and with capped ends. tubes up to 3” OD will be supplied in bundles. In order to prevent rust during sea shipment, bundles of Alloy Steel T91 Seamless Tubes may be wrapped with polypropylene sheets, and secured with flat steel bands. Over 3” OD will be supplied loose.
Alloy Steel T91 Tube
Sachiya Steel International is a known manufacturer of Alloy Steel T91 Tube, which is rich in cobalt and shares many of the wear characteristics of the cobalt – based alloys.
Product Brand: Sachiya Steel International
Product Currency: INR
Product Price: 120
Product In-Stock: InStock
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