Corpus Christi sits at the center of one of the most active refining and petrochemical corridors on the Gulf Coast. Fabricators in this market build high-pressure, thick-walled, custom-engineered pressure vessels for Valero, Flint Hills, CITGO, and the broader Eagle Ford and Ship Channel operator base. When those vessels need PWHT, they need a crew that can execute on-site, on schedule, with full documentation.
Gulf Coast Combustion provides on-site pressure vessel post weld heat treatment (PWHT) via direct gas fire combustion to fabricators and industrial operators throughout Corpus Christi and South Texas. GCC has mobilized to the South Texas coast and we’re equipped to support this market with the same execution our clients have counted on since 2014.
Talk to the Owner Directly
James Benefield
Owner, Gulf Coast Combustion
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.
Want a number before you call? Get an instant PWHT cost estimate from real job data — no email required.
Try the Calculator →The Corpus Christi bay corridor is home to some of the highest-capacity refineries in the United States — Valero, Flint Hills, CITGO — and a fabrication base that supplies the broader Eagle Ford midstream and petrochemical markets. Pressure vessels built for this market are large, code-critical, and built to operate under sustained high pressure and temperature. The margin for error in heat treating those vessels is zero.
GCC brings the equipment directly to your facility. Our mobile direct gas fire combustion systems handle vessels of any size, with gas trains running up to 8 million BTU. Every heat treatment performs in full accordance with ASME Section VIII Division 1 / UCS-56 or any customer-provided specification.
GCC has mobilized to the South Texas coast and we’re equipped to support this market with the same execution our clients have counted on since 2014. Corpus Christi is roughly 3.5 hours from our Spring, TX shop — a straightforward mobilization for our crew.
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.
Choosing a Contractor
The gap between a real specialist and someone with the same gas trains doesn’t show on a spec sheet. It shows on the vessel. Here’s how to tell the difference before you hand one your fabrication.
How to Vet a PWHT Contractor →For thick-walled, high-pressure pressure vessels — the kind being built for refining and petrochemical production along the Corpus Christi bay — 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.
On-Site PWHT Pricing
Enter your vessel specs and get a budgetary estimate in seconds, built from GCC’s actual job data. No email required.
Try the Free Calculator →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.
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 the Gulf Coast and South Texas.
As Featured In
The Fabricator — North America’s Leading Metal Fabricating Publication
James Benefield wrote the Welding Strategy article in the August 2026 issue: heat treating large pressure vessels where they sit. Four PWHT methods, what actually happens inside the steel, and the point where a furnace stops being an option.
Read James Benefield’s PWHT Article in The Fabricator
Thermal Processing Magazine — The Industry’s Leading Heat Treating Publication
James Benefield wrote the technical article the industry needed someone to write: what on-site direct gas fire PWHT actually requires to get right.
Read the Technical Article
GCC mobilizes throughout the Corpus Christi area and surrounding South Texas region, including:
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 Corpus Christi Project
Call or text the owner directly at 832-797-3428 — or reach the office at 713-425-3773.
Getting a quote from GCC is straightforward. Here’s how it works.
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.
We price it out
James reviews your specs personally and turns around a quote fast. No waiting on a sales team.
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.
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.
Corpus Christi is roughly 3.5 hours from our Spring, TX shop. For jobs with lead time, we plan mobilization around your fabrication schedule. For tight timelines, call James directly at 832-797-3428 — he’ll give you a straight answer on availability.
Our mobile equipment handles vessels of virtually any size. We have treated vessels over 100′ 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. On-site heat treating eliminates that entire cost category.
Yes, and we encourage it. Your team can monitor chart recorder data in real time throughout the entire cycle.
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.
Yes. The Ship Channel corridor, the north bay refinery row, and the Eagle Ford-adjacent fabrication shops in the Corpus area are all within our regular South Texas service range. We also serve Robstown, Portland, and the surrounding communities.
By the Numbers
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
100°F during soak
250°F during heat-up & cooldown · monitored full 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
Where We Work
Serving Fabricators Across Texas, the Gulf Coast & Beyond
Based in Spring, TX. Serving Corpus Christi, South Texas & the Gulf Coast.
Ready to Schedule Your Next 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.
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