Storage tank secondary containment: dikes, berms and liners
What secondary containment is for a storage tank, how the capacity is sized, the main ways to build it and how to handle rainwater and drains.
API 653 inspection intervals: how often a storage tank must be inspected
API 653 inspection intervals explained: monthly routine checks, formal external inspections every 5 years at most, and internal inspections set by corrosion rate.
Hydrostatic testing of a storage tank: procedure, water and settlement checks
How a storage tank hydrostatic test works under API 650: fill levels, filling rates, six settlement readings, water quality and leak checks.
How an API 650 storage tank is built: fabrication and erection step by step
How an API 650 storage tank is built in seven stages, from foundation and plates to inspection and the hydrostatic test. Step-by-step guide for 2026.
Storage tank types: fixed roof, floating roof and internal floating roof
Fixed roof, external floating roof and internal floating roof storage tanks compared. An internal floating roof cuts evaporation by 60 to 99% (EPA).
Structural steel connections: bolted vs welded
Structural steel connections: bolted (A325/A490) vs welded (AWS D1.1), shear vs moment, common joints, gusset plates and inspection.
Structural steel grades explained: A36, A992, A572 and A500
Structural steel grades explained: A36, A992, A572, A500 and A588. Yield, tensile, weldability, mill certificates and how to choose the right grade.
API 650 vs 620 vs 653: which tank standard you need
Differences between API 650 (atmospheric), API 620 (low pressure, 15 psi) and API 653 (inspection and repair) with diagrams and a decision table.
Pipe welder (6G): what it is and when you need one
What a pipe welder is, what 6G means, when you need one certified and what to ask for (ASME IX, API, 6G WPQ) in the Caribbean.
Structural steel shapes: types, profiles and uses
Structural steel shapes explained: W, S, HP, C, L, HSS and plate. What each profile does, how they’re named, and how to choose the right one.
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