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
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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