Is a Wrought Iron Gate Really Iron in Round Rock

On a gate that sits in full afternoon sun and takes a hard soak every few weeks, the metal underneath decides everything, and the running record iron gates round rock elizabethbaron holds shows that most gates sold as iron in Williamson County are mild steel. Wrought iron is a different material, and telling the two apart takes a magnet, a grinder and a close look at the grain.

What true wrought iron is

True wrought iron is a low carbon iron with slag stringers rolled into it, which gives a visible fibre like wood grain when a bar is filed or etched. It has not been produced in bulk for decades. Almost every gate described as wrought iron around Round Rock, TX is hot rolled steel bar, square tubing and flat stock, forged or bent into scrolls and welded into a frame.

How mild steel behaves outdoors

Mild steel rusts from the surface inward, and it does so faster once a coating chips. Pickets cut from thin tubing rust from the inside as well, because water enters at the weld and has nowhere to leave. A galvanized tube or a sealed end cap changes that, and a drain hole at the bottom rail does the rest.

Why old iron lasts longer

The slag fibres in genuine wrought iron slow corrosion because rust has to creep along the stringers rather than straight through the bar. Reclaimed gate sections near the older streets of Round Rock sometimes carry that grain, and a fabricator can reuse them when the bars are sound.

Soil, water and the base of the posts

Expansive clay soil moves a gate more than any alloy choice does. The ground swells after a wet week and shrinks in July, and a frame with rigid welds takes that twist as stress. Steel tubing at the base of a post that sits in wet clay near Brushy Creek or in the low lots around Forest Creek rusts out first, so the post bottoms deserve a coat of bitumen or a cap above grade.

Testing what the gate is made of

A magnet sticks to both metals, so it proves nothing on its own. A file test on a hidden edge shows the difference: mild steel files smooth and bright, while wrought iron shows streaks of slag. A spark test at the grinder is another quick check, since mild steel throws bright, forked sparks and wrought iron throws a duller, straighter stream.

Choosing between the two for a new frame

Steel is the practical choice for a new frame, because it welds cleanly, comes in consistent sections and takes powder coat well. The weak point is the finish, not the metal. A gate that faces west on Interstate 35 side streets or sits above a driveway in Pflugerville gets baked daily, so a baked powder coat over a clean blasted surface holds far longer than brush paint over mill scale.