Sachiya Steel International is One Of The Leading Manufacturer And Exporter Of High Quality Alloy Steel T91 Tubes, 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. 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.
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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 Seamless Tubes Application Industries
- Off-Shore Oil Drilling Companies
- Power Generation
- Petrochemicals
- Gas Processing
- Specialty Chemicals
- Pharmaceuticals
- Pharmaceutical Equipment
- Chemical Equipment
- Sea Water Equipment
- Heat Exchangers
- Condensers
- Pulp and Paper Industry
T91 Alloy Steel A213 Tube Test Certificates
We at Sachiya Steel International provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.
• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc
Material Testing
We at Sachiya Steel International ensure that all our materials go through strict quality tests before dispatching them to our clients.
• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and Macro Test
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test
Documentation
• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)
Alloy Steel T91 Tubes
Sachiya Steel International is One Of The Leading Manufacturer And Exporter Of High Quality Alloy Steel T91 Tubes, 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. 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.
Product Brand: Sachiya Steel International
Product In-Stock: InStock
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