Understand the steel industry better.

WP-W, WP-S and WP-WX markings describe how a wrought stainless steel pressure fitting was manufactured and examined under ASTM A403. They do not identify the alloy grade or wall thickness by themselves. A complete fitting specification must combine the class marking...

A stainless steel pipe schedule identifies a standard wall-thickness series for a particular nominal pipe size. It does not state the pipe's pressure rating, grade or manufacturing method. Engineers and buyers must therefore specify the nominal size, schedule,...

A flange marked Class 150 is not automatically limited to 150 psi, and a Class 300 flange is not suitable for every service below 300 psi. ASME flange classes group standardised dimensions with pressure-temperature ratings that change according to material and...

ASTM A312, A358 and A778 can all appear in stainless steel pipe specifications, but they do not describe interchangeable products. Each standard controls a different combination of manufacturing route, heat treatment, inspection and intended service. Selecting by...

Mining equipment does not fail for one reason. Abrasion, corrosion, impact, vibration, pressure and aggressive process chemistry often act together. Stainless steel is therefore not the automatic answer for every component, but it can add substantial value where...

Pulp and paper mills combine wet service, high temperatures, process chemicals, chlorides, abrasion and difficult maintenance access. Stainless steel is widely used because it can resist many of these conditions without protective coatings, but mill environments vary...

Pharmaceutical equipment must support repeatable cleaning, protect product quality and remain traceable throughout its service life. Stainless steel is widely used for vessels, piping, skids, transfer systems and product-contact components, but the words...

Wastewater treatment exposes equipment to moisture, chlorides, chemicals, deposits and changing oxygen levels. Stainless steel can provide long service life in these conditions, but only when the grade, finish, fabrication method and operating environment are...

Stainless steel does not usually travel directly from a steel mill to the finished product. Between production and installation, material may pass through distributors, stockists, processors and fabricators before reaching its final application. Understanding this...

Stainless steel availability can influence a project's schedule as much as the material specification itself. Standard grades and sizes are often easier to source, while specialist grades, unusual dimensions or custom requirements may require additional production or...

Stainless steel fittings connect pipes and tubing while controlling direction, flow, branching and system assembly. The right connection method depends on pressure, pipe size, maintenance requirements, installation method and whether the system needs to be dismantled....

Stainless steel can cost more to purchase than some alternative materials, but the purchase price does not show the full cost of an installation. Maintenance, downtime, replacement, fabrication and operating conditions can have a greater effect on the final cost over...