Steel grade: ASTM A335 P91
Packing:
Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for sea-worthly delivery or as requested.
Inspection and Test:
Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test.
Surface treatment:
Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.
Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.
ASTM A335 P91 Chemical Compositions(%)
| Compositions |
Data |
| UNS Designa-tion |
K91560 |
| Carbon(max.) |
0.08-0.12 |
| Manganese |
0.30-0.60 |
| Phosphorus(max.) |
0.025 |
| Silicon(max.) |
0.50 |
| Chromium |
4.00-6.00 |
| Molybdenum |
0.45-0.65 |
| Other Elements |
… |
Mechanical properties for ASTM A335 P91
| Properties |
Data |
| Tensile strength, min, (MPa) |
415 Mpa |
| Yield strength, min, (MPa) |
205 Mpa |
| Elongation, min, (%), L/T |
30/20 |
Material & Manufacture
Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.
Heat Treatment
Mechanical Tests Specified
- Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
- For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.
- For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.
Product Tags:
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Anti Corrosion Steel Metal Pipe , High Strength Hollow Steel Tube Custom Dimmension Images
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