09MnNiDR Vessel Plate
09MnNiDR is a steel plate for low temperature pressure vessels used in the manufacture of pressure equipment and structures used below -20 ℃, requiring good low temperature toughness and welding performance of the steel. According to the use of different temperatures, the main steel used are low alloy high strength steel, nickel steel and austenitic stainless steel.
"D" is the first letter of low pinyin "R" is the first letter of Rong pinyin.
09MnNiDR Delivery condition: Normalized or normalized + tempered Hardened + tempered -70 degrees low temperature impact.
Execution standard: GB3531-2014.
09MnNiDR vessel plate chemical composition
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Ni(％) | Nb(%) |
|---|---|---|---|---|---|---|
| Max 0.12 | 0.15-0.50 | 1.20-1.60 | 0.025 | 0.02 | 0.30-0.80 | Max 0.04 |
09MnNiDR boiler plate mechanical property
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 834 (≥) | 412 (≥) | 24 | 14 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 414 |
09MnNiDR boiler steel plate quality description
A. The surface of the steel plate is not allowed to have cracks, bubbles, scars, folding and inclusions and other defects harmful to use. Steel plate shall not have delamination. If the above surface defects are allowed to clean up, clean up the depth from the actual size of the steel plate Xuanqi, should not be greater than half of the thickness tolerance of the steel plate, and should ensure that the cleanup at the lower limit of the thickness of the steel plate, defects should be cleaned up at a smooth and no edges.
B. Other defects are allowed to exist, the depth from the actual size of the steel plate, shall not exceed half of the permissible tolerance of the thickness of the steel plate and shall ensure that the defects in the thickness of the steel plate is not less than the permissible minimum thickness of the steel plate.
09MnNiDR pressure vessel steel plate applications
09MnNiDR pressure vessel plate application: mainly used in petroleum, chemical equipment deethane tower, CO2 absorption tower, medium pressure flash tower, cooler, deethane tower, reabsorption tower, compressor casing, propane cryogenic tanks manufacturing and so on. Petrochemical equipment, power station, boiler and other industries. Used in the production of reactors, heat exchangers, separators, ball tanks, oil and gas tanks, liquefied gas tanks, nuclear power reactor pressure shells, boiler ladle, liquefied petroleum cylinders, high-pressure water pipes in hydroelectric power stations, turbine worm shells and other equipment and components.
09MnNiDR steel boiler plate product image
GNEE group team photo
GNEE Group participates in foreign steel exhibitions
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