08Ni3DR (3.5Ni) is a kind of steel plate for low-temperature pressure vessels, commonly known as (3.5Ni) steel. 08Ni3DR steel has good impact toughness and mechanical properties under low-temperature working conditions, 08Ni3DR (3.5Ni) is usually used in low-temperature environments from -70 to -101℃ (tempered state can be up to -107℃).
08Ni3DR for low-temperature boiler and pressure vessel tanks special steel plate, often in the boiler and pressure vessel manufacturing industry more applications.
For example: boiler equipment, vessel tanks, storage tanks, cryogenic storage tanks, ultra-ultra-collapsible, steam turbines, marine equipment, chemical equipment, time equipment, nuclear power equipment, etc. are more widely used.
08Ni3DR executive standard: GB/T3531-2014.
08Ni3DR mechanical properties:
Yield lightness: 6-60mm, ≥320MPa; >60-100mm, ≥300MPa
Tensile strength: 6-60mm, 490-620MPa; >60-100mm, 480-610MPa
Post-break elongation A%: ≥21
Impact temperature: -100℃
Impact absorbed energy, KV2: ≥60J180˚
Bending test (b=2a): D=3a
