Call James Directly: 832-797-3428

/

On-Site Pressure Vessel Heat Treating — Tyler & Longview

East Texas has real fabrication shops building real vessels — thick-walled, high-pressure, ASME-stamped work for oil and gas production, chemical processing, and industrial service. When those vessels are ready for PWHT, most fabricators in this corridor are shipping them west to Houston or to a furnace somewhere with a queue. Gulf Coast Combustion comes to you instead.

Tyler is under three hours from our Spring, TX shop. Longview is under four. We’ve mobilized further on shorter notice. If your vessel is ready, call our owner James Benefield directly at 832-797-3428. He answers calls and texts personally, including short-notice and emergency jobs.

Technical Resource

The Fabricator’s Complete Guide to Pressure Vessel PWHT

Everything you need to know about on-site pressure vessel PWHT — code requirements, execution standards, thermocouple methodology, documentation, and how to evaluate a heat treating contractor.

Read the Complete Guide

Talk to the Owner Directly

James Benefield

Owner, Gulf Coast Combustion

832-797-3428

Call or text — James answers personally

No receptionist. No call queue. No waiting on a callback from someone who wasn’t on the last job.

On-Site PWHT in the East Texas Industrial Corridor

The Tyler/Longview corridor runs through Gregg, Smith, Rusk, and Panola County — active oilfield and industrial territory with a long manufacturing history. Longview in particular has heavy industrial infrastructure, pipeline work, and fabrication shops producing vessels for downstream oil and gas operations. Tyler has a growing industrial base with manufacturing and energy service companies that spec ASME-compliant pressure equipment.

Fabricators in this region are building vessels that need code-compliant PWHT — and the options have historically meant trucking equipment to Houston or waiting on a furnace queue. Gulf Coast Combustion brings the equipment to your yard. We set up on-site, fire up gas trains throwing up to 8 million BTU of direct combustion flame, and bring your pressure vessel to 1,150°F right where it sits. Full documentation before we leave.

GCC has been performing on-site pressure vessel PWHT across Texas since 2014. For a full breakdown of what PWHT requirements look like in practice, see our post on on-site PWHT vs. furnace heat treating.

The Hidden Cost of Shipping Your Vessel to a Furnace

East Texas fabricators sending vessels to a heat treating furnace are taking on costs and risks that don’t show up in the heat treating quote:

  • ✕ Heavy haul transport — permits, escorts, scheduling delays
  • ✕ Rigging at pickup and delivery — twice
  • ✕ Furnace queue — your vessel waits behind someone else’s job
  • ✕ Transit damage risk on a vessel you just built
  • ✕ You’re not there when it’s treated — no visibility on execution

On-site PWHT eliminates every one of those. See the full on-site vs. furnace comparison.

No Transport

No oversized load permits. No rigging. No transit risk. Your vessel never leaves your yard.

On-Site QC Witness

Your QC team monitors chart recorder data in real time throughout the entire cycle.

ASME Compliant

Every job executed to ASME Section VIII or your customer-specified WPS and code requirements.

Full Docs Before We Leave

Heat treat record, strip chart trace, calibration certificate, execution plan — complete before GCC trucks leave your yard.

Why Direct Gas Fire Combustion

For thick-walled, high-pressure pressure vessels — the kind being fabricated for oil and gas production and industrial operations across East Texas — direct gas fire combustion delivers uniform, controllable heat across large surface areas. Our Type K thermocouples with capacitor discharge attachment and NIST-calibrated Chino recorders monitor and document every phase of the cycle. For more on the method, see what direct gas fire heat treating is and why it matters.

We follow ASME Section VIII parameters on ramp rates, soak temperatures, and hold times on every job. Our standard soak temperature is 1,150°F ±50°F. Heat-up and cool-down rates are calculated by wall thickness. Nothing is guessed, and nothing is left undocumented.

This Is What On-Site PWHT Actually Looks Like

Direct gas fire combustion, on-site, right where the vessel sits. No furnace. No transport. James Benefield is involved in every job.

Time lapse: 621,000 lb vessel, Central Texas. Direct gas fire combustion, on-site.

Get a Ballpark on Your Job

Use the GCC pricing calculator — built from 19 real bids, accurate to ±5–7% on in-spec vessels.

Try the Calculator

Services Available in Tyler, Longview & East Texas

More From Gulf Coast Combustion

Pressure vessel PWHT is our primary work — but we also provide a full range of industrial heat treating services across Texas and the Gulf Coast.

Fabricators and Operators We Serve in East Texas

GCC mobilizes throughout the Tyler/Longview area and surrounding East Texas region, including:

  • Pressure vessel fabrication shops in Tyler, Longview, and Henderson
  • Pipeline and midstream operators in Gregg, Rusk, and Panola County
  • Oil and gas production facilities across the East Texas oilfield
  • Industrial manufacturers and process equipment shops in Smith County
  • Repair and maintenance contractors on existing refinery and chemical plant equipment
  • Marshall, Kilgore, Nacogdoches, and surrounding East Texas industrial corridor

Don’t see your area? GCC mobilizes statewide and nationwide. Call us and we’ll make it work.

Ready to Get Started?

Talk to James About Your East Texas Project

Call or text the owner directly at 832-797-3428 — or reach the office at 713-425-3773.

What Happens After You Call

Getting a quote from GCC is straightforward. Here’s how it works.

1

Send us your specs

Drawings are ideal, but vessel weight, length, width, and wall thickness get us started. Email james@gulfcoastcombustion.com or call 713-425-3773.

2

We price it out

James reviews your specs personally and turns around a quote fast. No waiting on a sales team.

3

We schedule and mobilize

GCC is available on short notice. If your timeline is tight, tell us up front — we work around fabrication schedules regularly and can mobilize faster than you’d expect.

4

Full documentation before we leave

Every job includes a complete documentation package: heat treat record, strip chart recorder trace, calibration certificate, and written execution plan. Your QC package is complete before GCC trucks leave your yard.

Frequently Asked Questions

How quickly can GCC mobilize to Tyler or Longview?+

Tyler is under three hours from our Spring, TX shop and Longview is under four — a straightforward run we can make on short notice. For scheduled jobs, we plan mobilization around your fabrication timeline. For tight deadlines, call James directly at 832-797-3428 and he’ll give you a straight answer on availability.

What vessel sizes do you handle?+

Our mobile equipment handles vessels of virtually any size. We have treated vessels over 120′ long and 600,000 lbs on-site. For most large vessels, furnace transport is possible — it’s just not cost effective. Oversized load permits, rigging, transit risk, and furnace scheduling all add up fast. On-site eliminates that entire cost category.

Can our QC team witness the heat treatment?+

Yes, and we encourage it. Your team can monitor chart recorder data in real time throughout the entire cycle. Everything is visible and documented as it happens — no black box, no waiting on paperwork after the fact.

Do you work with fabricators who haven’t used mobile PWHT before?+

All the time. We walk first-time clients through the full process before the job starts — thermocouple placement, documentation requirements, what to expect during heat-up and hold. No surprises on job day.

Do you serve Kilgore, Nacogdoches, and the broader East Texas corridor?+

Yes — GCC mobilizes throughout the Tyler/Longview area including Gregg, Smith, Rusk, and Panola County, as well as Marshall, Kilgore, Nacogdoches, and the surrounding East Texas industrial corridor. Call us with your location and vessel specs and we’ll give you a straight answer on mobilization.

Is on-site PWHT cost competitive with shipping a vessel to a furnace from East Texas?+

For large vessels, almost always yes. The freight cost on an oversized load from East Texas to a furnace shop, plus permits, rigging, and the return trip, adds up fast. Call us with your vessel specs and we’ll give you a number to compare against your current furnace quote.

By the Numbers

Our Technical Standards

Soak Temperature

1,100°F – 1,200°F

GCC standard: 1,150°F ±50°F

Heat-Up Rate

400°F/hr ÷ wall thickness

Never exceeds 400°F/hr

Cool-Down Rate

500°F/hr ÷ wall thickness

Never exceeds 500°F/hr

Max Temp Differential

250°F during soak

Monitored across full vessel length

Thermocouples

Type K

TAU capacitor discharge attachment

Recorders

Chino AH Series

NIST traceable calibration annually

Gas Trains

Up to 8 million BTU

Direct gas fire combustion

Based in Spring, TX. Available Nationwide.

Ready to Schedule Your East Texas PWHT Job?

Call or text James directly at 832-797-3428 — or reach the office at 713-425-3773.

Email: james@gulfcoastcombustion.com

View all heat treating services including refractory dry outs, localized PWHT, consulting, and more.