Knowledge

A technical comparison for engineers, procurement teams, and EPC contractors specifying stainless steel and nickel alloy components for H₂S service.

NORSOK M-650 is a manufacturer qualification standard — not a material specification. It verifies that a mill or foundry has the competence, facilitie

Directive 2014/68/EU — the EU Pressure Equipment Directive (PED) — governs the design, manufacture, and conformity assessment of pressure equipment an

ASTM A380 is a Standard Practice — a broad procedural guide covering cleaning, descaling, pickling, and passivation recommendations for austenitic, fe

Plasma cutting remains the fastest way to separate stainless steel plate, but "fast" and "clean" only coexist when the parameter set is correct for th

NACE MR0175/ISO 15156 governs upstream oil & gas production equipment (wellheads, downhole tools, pipelines) in H₂S environments. NACE MR0103/ISO 1794

The complete pickling and passivation workflow for stainless steel fabrications is: degrease and clean, pickle with a nitric-hydrofluoric acid solutio

API 6A material classes (AA through HH) define the temperature-environment envelope and required material group for wellhead and Christmas tree equipm

When specifying stainless steel or nickel alloy pipe for a chemical plant, oil & gas platform, or power generation facility, choosing between ASTM A31

Stainless steel expansion joints absorb thermal growth in piping systems. This guide compares material grades (304L, 316L, 321, 347, Inconel 625, Inco

Tube-to-tubesheet welds require qualification under ASME Section IX using either a demonstration mockup (QW-193) or a groove/fillet weld test per QW-2

A practical engineering reference covering Barlow's-formula test-pressure calculations, ASME/ASTM/API test standards, hold-time requirements, chloride