The steel plate for large oil storage tank has shorter development history,its microstructure and properties are demanded grindingly and affected by many factors,the compositions and production processes are controlled subtly,the difficulty of production technology is larger and the development and research in China are late.

Structural behavior of tapered steel tanks under harmonic settlement;

The influence of different welding thermal cycle on structure and property in heat affected zone(HAZ) of 08MnNiVR oil tank steel in Angang are investigated by welding thermal simulation,instrumented impact toughness and optical metallographic test.