15MnNiNbDR belongs to the steel plate is a low-temperature pressure vessel with container class, 15MnNiNbDR steel plate is the impact temperature of minus -45 °, with high strength, high toughness characteristics, 15MnNiNbDR steel plate appeared to fill the industry low-temperature containers with low alloy steel plate in minus 40 degrees between minus 70 degrees with the steel blanks, commonly used in the manufacture of low-temperature pressure vessels, low-temperature spherical Commonly used in the manufacture of cryogenic pressure vessels, cryogenic spherical tanks, high-parameter cryogenic cylindrical vessels, cryogenic ethylene spherical tanks and other equipment.
►Mechnical property for 15MnNiNbDR Pressure vessel steel plate:
| Thickness (mm) | |||
| 15MnNiNbDR | > 10 ≤ 16 | > 16 ≤ 36 | > 36 |
| Yield strength (≥Mpa) | 370 | 360 | 350 |
| Tensile strength (Mpa) | 530-630 | 530-630 | 520-620 |
►Chemical composition for 15MnNiNbDR Pressure vessel steel plate (Heat Analysis Max%)
| Main chemical elements composition of 15MnNiNbDR steel plate | |||||||
| C | Si | Mn | Ni | Nb | P | S | Alt (min.) |
| 0.18 | 0.15-0.50 | 1.20-1.60 | 0.30-0.70 | 0.0015-0.04 | 0.02 | 0.008 | - |
Low-temperature steel: used in the manufacture of -20 ℃ below the use of pressure equipment and structures, the requirements of good low-temperature toughness and welding performance of steel. According to the use of different temperatures, the main steel used are low alloy high strength steel, nickel steel and austenitic stainless steel.
The executive standard of 15MnNiNbDR: the implementation of the national standard GB/T 3531 standard.
Delivery state of 15MnNiNbDR: the general delivery state is normalized + tempered. ps: if customers need other special delivery state should be specified in the contract.
Packing, marking and quality certificate of 15MnNiNbDR: Packing, marking and quality certificate of steel plate should be in accordance with GB/T 247.
15MnNiDR steel plate for cryogenic vessel is widely used in manufacturing cryogenic welded pressure vessels.GNEE produces steel plate for cryogenic pressure vessels with pure steel, low inclusions, excellent performance, good strength and toughness and low temperature toughness, fully comply with the standard requirements, especially low-temperature impact toughness, which is much higher than the standard requirements.
