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ASTM A335 P92 High pressure boiler pipes
Short Description:
Steel grade: ASTM A335 P92 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, ...
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Steel grade: ASTM A335 P92
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.
Chemical Requirements of ASTM A335 P92
| UNS Designation | K92460 |
| Carbon | 0.07–0.13 |
| Manganese | 0.30–0.60 |
| Phosphorus(max) | 0.02 |
| Sulfur(max) | 0.01 |
| Silicon | 0.50 max |
| Chromium | 8.50–9.50 |
| Molybdenum | 0.30–0.60 |
| V | 0.15-0.25 |
| N | 0.03-0.07 |
| Ni (max) | 0.4 |
| Al(max) | 0.02 |
| Cb | 0.04-0.09 |
| W | 1.5-2.00 |
| B | 0.001-0.006 |
| Ti (max) | 0.01 |
| Zr(max) | 0.01 |
Mechanical Properties of ASTM A335 P92
| Properties | Data |
| Tensile strength, min, (MPa) | 620 |
| Yield strength, min, (MPa) | 440 |
| Elongation, min, (%), L/T | 20/… |
Material & Manufacture
Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.
Heat Treatment
- A / N+T
- N+T / Q+T
- N+T
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.
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