What is a WPS and why do I need one?

If you’ve ever heard the terms WPS and PQR and wondered what they actually mean, here’s the simple way I explain it 👇

A WPS (Welding Procedure Specification) is basically the recipe. It tells the welder exactly how to carry out the weld — what process to use, materials, temperatures, amps, technique, everything.

A PQR (Procedure Qualification Record) is the proof that the recipe works. It’s where that WPS has been tested in real conditions, then destructively and/or non-destructively tested to make sure it produces a sound weld.

👉 No guesswork. No assumptions. Just proven results.

So why do we need them?

Because in high-integrity work, “it looks alright” isn’t good enough. You need documented evidence that the weld will perform as required — every time.

Think of it like this:

• WPS = the recipe
• PQR = testing the recipe before serving it

No PQR? Then your recipe hasn’t been proven.

Simple as that.

So what happens if your business is welding without a recipe (no WPS/PQR)?

Short answer… you’re taking a risk every single time you strike an arc.

Here’s what that really means 👇

❌ Inconsistent weld quality

Every welder might do it slightly differently. What works one day might fail the next.

❌ No proof of compliance

If a client, inspector, or auditor asks for your procedures… you’ve got nothing to show.

❌ Failed inspections & rejected work

Even if the weld looks good, without a qualified procedure it can be rejected instantly.

❌ Increased liability

If something fails, you’ve got no documented evidence to protect your business.

❌ Lost contracts

Most serious clients won’t even consider you without qualified procedures in place.

❌ Safety risks

Unproven welds in critical applications can lead to real-world failures — and that’s where it gets serious.

👉 At the end of the day, a WPS and PQR aren’t paperwork for the sake of it… they’re protection.

Think of it like running a kitchen:

No recipe = inconsistent food

No testing = you don’t know if it’s safe to serve

In welding, that can cost you money, reputation… or worse.