Aalberts Surface Technologies - Paulo Heat Treating

Aalberts Surface Technologies - Paulo Heat Treating Heat Treating, Brazing and Metal Finishing Our systems and processes are engineered from the ground up for consistency, traceability, and performance at scale.

Paulo, an Aalberts company, delivers precision heat treating and thermal processing services that push the boundaries of what’s possible in metallurgical science. With locations strategically spread throughout North America, we support the world’s most innovative manufacturers across industries including aerospace, defense, automotive, power generation and beyond. Backed by decades of expertise, o

ur team of passionate experts goes above and beyond to ensure every part is processed with uncompromising quality and care. Now part of Aalberts NV, a global leader in mission-critical technologies, we bring 80+ years of proven expertise together with the power of Aalberts’ global resources. Our proprietary datagineering approach—powered by our custom-built PICS (Production Information and Customer Service) system—ensures every part is traceable, consistent, and optimized for performance. We provide heat treating services a broad range of industries, including:
Automotive & Heavy Truck
Aerospace & Defense
Agriculture
Firearms
Tool & Die
Medical
Mining, Oil & Gas
Power Generation

Carburizing is a case hardening process that adds carbon to the surface of low-carbon steel, creating a hard, wear-resis...
06/04/2026

Carburizing is a case hardening process that adds carbon to the surface of low-carbon steel, creating a hard, wear-resistant outer layer while keeping the core tough and ductile. Parts heated in a carbon-rich atmosphere at around 1,700°F gain:

→ a hard, wear-resistant case
→ a tough, ductile core
→ deeper case depths
→ the ability to use lower-cost steels

Because carburizing delivers both surface hardness and core strength, it's ideal for high-load, high-wear components like gears, bearings, shafts, and fasteners.

Learn more here: https://www.paulo.com/capabilities/processes/heat-treating/carburizing/?utm_campaign=july-26-organic-social&utm_medium=social&utm_source=organic-social&utm_content=carb

Most case hardening processes come with a tradeoff: better surface properties, but at the risk of distortion.Ferritic ni...
05/28/2026

Most case hardening processes come with a tradeoff: better surface properties, but at the risk of distortion.

Ferritic nitrocarburizing (FNC) mitigates this risk. Its low processing temperatures, between 950°F and 1,100°F, deliver a hard, wear-resistant surface with very minimal dimensional change compared to other processes. That makes it the go-to choice for finished machined components where tight tolerances can't be compromised.

Learn more about FNC at AST-Paulo: https://loom.ly/09PQlcA

Today we honor those who gave everything in service to our country. From all of us at AST-Paulo, thank you.
05/25/2026

Today we honor those who gave everything in service to our country. From all of us at AST-Paulo, thank you.

If you're not subscribed to our Hot Rush newsletter, you're missing out!Expert heat treating insights, in-depth resource...
05/21/2026

If you're not subscribed to our Hot Rush newsletter, you're missing out!

Expert heat treating insights, in-depth resources, and the latest from AST-Paulo…delivered straight to your inbox every month.

Sign up here: https://loom.ly/j6rSE6M

We go beyond heat treating. We engineer solutions that solve your toughest challenges and give you the most precise, rep...
05/19/2026

We go beyond heat treating. We engineer solutions that solve your toughest challenges and give you the most precise, repeatable results with every part.

Additive manufacturing opens the door to complex, high-performance parts. But the process can leave behind internal void...
05/14/2026

Additive manufacturing opens the door to complex, high-performance parts. But the process can leave behind internal voids that compromise strength, fatigue resistance, and reliability.

Hot isostatic pressing (HIP) closes those voids. High heat and pressure work together to bring parts to near-100% theoretical density; making HIP the standard post-process for precision additive manufacturing in aerospace, medical, and defense.

AST-Cleveland runs HIP for the most demanding applications.
Learn more: https://loom.ly/-P6u2I8

Carbonitriding is the secret to getting economical alloys to perform in safety-critical applications.It gives low-carbon...
05/12/2026

Carbonitriding is the secret to getting economical alloys to perform in safety-critical applications.

It gives low-carbon steels the hardness characteristics of higher-grade materials, at a fraction of the cost.

Learn more about carbonitriding: https://loom.ly/21Pbwy0

Have you tried our free Steel Hardness Conversion Calculator yet? Converting between Rockwell, Brinell, Vickers, and Kno...
05/07/2026

Have you tried our free Steel Hardness Conversion Calculator yet? Converting between Rockwell, Brinell, Vickers, and Knoop has never been easier.

Try it now: https://loom.ly/3Do-ba0

Not all hardening is created equal. This chart shows why: each process delivers a unique hardness profile from the surfa...
05/05/2026

Not all hardening is created equal. This chart shows why: each process delivers a unique hardness profile from the surface inward. The process you choose determines not just how hard the surface gets, but how deep that hardness goes before it fades.

Learn more in our Heat Treating 101 guide: https://loom.ly/vMJp2B0

Address

St. Louis, MO

Opening Hours

Monday 12am - 12am
Tuesday 12am - 12am
Wednesday 12am - 12am
Thursday 12am - 12am
Friday 12am - 12am

Telephone

+13146477500

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