ASTM A213 T91 Alloy Steel Tube
Hutzmann is a known manufacturer of AS 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.
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 |
Types of Alloy Steel T91 Seamless Tubes
| Alloy Steel T91 Seamless Tube | Alloy Steel T91 Seamless Tubes T91 Alloy Steel Seamless Tube T91 Alloy Seamless Tubes UNS K90901Seamless Tube Alloy Steel A213 T91 Seamless Tubes ASME SA213 T91 Alloy Steel Seamless Tube |
| Alloy Steel T91 Custom Tube | Alloy Steel T91 Custom Tubes T91 Alloy Steel Custom Tube T91 Alloy Steel Custom Tubes Alloy Steel UNS K90901 Custom Tube Alloy Steel A213 T91 Custom Tubes ASME SA213 T91 Alloy Steel Custom Tubes |
| Alloy Steel T91 Round Tubes | Alloy Steel T91 Round Tube T91 Alloy Steel Round Tubes T91 Alloy Steel Round Tube UNS K90901 Round Tubes Alloy A213 T91 Round Tube ASTM A213 T91 Alloy Steel Round Tubes |
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