1. Brief introduction of WH590E
WH590E is a steel plate for high-performance low-temperature pressure vessels, which is a new material added to the national standard Q/WG(ZB)05-2010, and WH590D is also added to the same batch.
WH590E delivery condition: Normalizing, -40℃ impact.
2, WH590E implementation standard
The WH590E implementation standard is Q/WG(ZB)05-2010.
3, WH590E steel grade, chemical composition (melting analysis) and welding crack sensitive composition Pcm should comply with the following table:
Name CSiMnNiNbPSVWH590E≤0.200.20~0.551.30-1.700.20-0.500.01-0.040≤0.015≤0.0050.02~0.08
Pcm is composed of welding crack sensitivity, calculated according to the following formula:
Pcm=C+Si/30+ (Mn+Cu+Cr) /20+Ni/60+Mo/15+V/10+5B (%)
To improve the properties of WH590E steel, trace elements other than those listed above can be added.
4. The mechanical properties and process properties of WH590E steel plate shall comply with the provisions of the following table.
Mechanical properties and cold bending properties of steel plates
Steel plate thickness tensile test Impact test Cold bending test grade (mm)Rm/MpaRel/MPA Impact temperature ℃ Impact power KV2180°b=2a 590-720≥410-40≥47d=3aWH590E > 16-36570-700≥390-40≥47d=3a > 36-60550-680≥370-40≥47d=3a
If the demander has special requirements on the mechanical properties and technological properties of WH590E steel plate, the demander and the demander shall negotiate and indicate in the contract.
5. Ultrasonic detection
WH590E steel plate shall be ultrasonic tested one by one according to JB/T4730.3 standard, WH590E steel plate delivery can be Ⅰ or Ⅱ level qualified, the demander put forward the level requirements, and indicated in the contract.
6, WH590E packaging, marking and quality certificate:
The packaging, marking and quality certificate of WH590E steel plate shall comply with the provisions of GB/T247.
7. Use
Mainly used in the manufacture of petroleum, chemical gas separation and gas storage and transportation pressure vessels and other similar equipment, the general working pressure in the normal pressure to 320kg/cm2 or even to 630kg/cm2, the temperature in the range of -20-450°C work, the container steel plate in addition to a certain strength and good plasticity and toughness, but also must have good cold bending and welding performance, Such as: Q245R, Q345R, 14Cr1MoR, 15CrMoR, etc.
8. Keyword WH590E
Steel plate for high performance containers and steel plate normalizing delivery for low temperature pressure vessels
