Steel plate for bottoms of API standard 650 carbon steel tank

When the day light gradually decreases, the temperature of oil in the API standard 650 carbon steel tank will also decrease, the evaporation speed will gradually slow down, and the pressure in the API standard 650 carbon steel tank will also decrease. When the pressure in the API standard 650 carbon steel tank is lower than the negative pressure rating of the breathing valve, the outside air is sucked into the API standard 650 carbon steel tank through the open vacuum valve, which is the "suction" process of the oil tank.

In cylindrical tank walls, the longitudinal weld joints in adjacent shell courses, including compression ring welds, shall be offset from each other a minimum distance of 12 in. The butt-weld around the periphery of a thickened insert plate, or the fillet weld around the periphery of a reinforcing plate, shall be at least the greater of 10 times the shell thickness or 12 in. from any butt-welded seam or the bottom-to-shell or roof-to-shell joint. As an alternative, the insert plate (or the API standard 650 carbon steel tank reinforcing plate in an assembly that does not require stress relief) may extend to and intersect a flat-bottom-to-shell corner joint at approximately 90 degrees.

API Standard 650, Welded Tanks for Oil Storage, Thirteenth Edition, has been published to ensure the safety, sustainability, and environmental performance of API standard 650 carbon steel tank oil storage tanks. The updated standard will help continue operational excellence and trust between operators and manufacturers.

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We have replenish steel materials stocks, now there are huge stocks of S355JR, A36, API standard 650 carbon steel tank A572 Gr 50, 16Mo3, A516 Gr 70, ABS grade A, AH32, AH36, EH36, SPA-H, SG295,SM700C etc steel materials. We can arrange delivery for those stock steel products within short time. Meanwhile, we also provide further processing for the API standard 650 carbon steel tank steel materials, such as cutting, drilling, bending, welding, etc. Please do not hesitate to contact us if you have any steel demands.