ASME Section I & VIII Pressure Parts • Power & Industrial Infrastructure

Contract Pressure-Part Fabrication, HRSG Harps & Core Kits

Dedicated contract manufacturing partner for North American boiler OEMs, turbine packagers, and power generation utilities. Modular HRSG harp bundles, knocked-down core packages, and heavy steam drums delivered DDP directly to your shop floor or jobsite.

Submit Drawing / RFQ View Tooling & Capacity
ASME S&U

Code Stamped Works

150mm

Heavy Plate Rolling

50ft

Continuous SAW Panels

DDP USA

Domestic Contracting

● ASME "S" STAMP (POWER BOILERS)
● ASME "U" STAMP (PRESSURE VESSELS)
● NATIONAL BOARD NBIC "R" STAMP
● FORM P-4 / U-1 MANUFACTURER DATA REPORTS
● 100% MTR MATERIAL TRACEABILITY
The Captive Advantage

Domestic Contracting with In-House Heavy Capacity

Eliminate broker markups, overseas scheduling ambiguities, and quality risks through direct group ownership and dedicated production bays.

Domestic Contracting (USA)

Direct commercial interface with UEG Thermal Systems LLC (Alpharetta, GA).

  • Turnkey DDP delivery to your manufacturing plant or jobsite
  • Standard US W-9 invoicing & domestic commercial liability
  • HTS 8402 customs clearance & import tariff compliance
  • Direct US technical support & fast-track drawing review

In-House Heavy Works (India)

Direct access to our dedicated heavy engineering works at Uttamenergy Limited.

  • Active ASME Section I ("S") & Section VIII Div 1 ("U") authorized stamps
  • Hartford Steam Boiler / TÜV Authorized Inspector (AI) oversight
  • Finnish PEMA multi-torch automated submerged arc panel welding lines
  • 100% MTR material traceability and certified Level II/III NDE inspection
Product Portfolio

ASME Boiler Sub-Assemblies & Heat Recovery Harps

Build-to-print contract manufacturing for utility, industrial watertube, and combined-cycle power generation packagers.

Combined Cycle & CCHP

Gas Turbine HRSG Harps

High-integrity modular harp bundles, bare and spirally finned convective sections, and high-pressure superheater modules for 5 MW–50+ MW turbine exhaust heat recovery and cogeneration systems.

Boiler OEM Solutions

Knocked-Down Core Kits

Un-assembled pressure part packages for D-type, O-type, and A-type industrial watertube boilers. Fully fitted steam/mud drums, furnace panels, and generating banks allowing OEMs to scale shop volume.

High-Temperature Metallurgy

P91 / P22 Outage Headers

Creep-strength alloy replacement headers, main steam spools, and superheater manifolds precision-machined with CNC tube stubs and chart-recorded in-house PWHT for plant turnarounds.

Precision Welding

Membrane Waterwalls

100% gastight tube-and-fin furnace panels welded on multi-torch submerged arc lines up to 50 ft lengths with pre-engineered openings for burner throats, sootblowers, and inspection ports.

Heavy Plate Forming

ASME Steam & Mud Drums

Heavy SA-516 Grade 70 plate rolling up to 150 mm (5.9 in.) thickness with fully welded internals, chevron separators, cyclone cans, nozzle stubs, and chart-recorded in-house PWHT.

CNC Mandrel Bending

Serpentine Pendants & Coils

Tight-radius convective banks, superheater loops, and economizer bundles cold-bent on CNC mandrel benders in carbon, alloy (T11/T22/T91), and stainless steel tubing.

In-House Manufacturing Works • India

Heavy Fabrication Bays & Tooling Capacity

Direct group ownership of heavy hydraulic plate rolls, Finnish automated membrane panel lines, and multi-spindle CNC drilling gantries operating under ASME Section I & VIII quality assurance.

UEG Thermal / Uttamenergy Heavy Manufacturing Complex
ASME "S" STAMP Power Boilers
ASME "U" STAMP Pressure Vessels
NBIC "R" STAMP Metallic Repairs & Alterations
IBR APPROVED Indian Boiler Regulations Certified
Heavy Hydraulic Plate Rolling Cell
Heavy Plate Forming

Hydraulic Plate Rolling Cell

Multi-roll hydraulic bending cells rolling thick-wall SA-516 Grade 70 plate for steam drums, mud drums, and ASME Section VIII pressure vessels.

  • Plate Thickness: Up to 150 mm (5.9 in.) Capacity
  • Vessel Diameters: 36 in. to Large-Bore ID Envelope
Asia Machine Group CNC Pipe Drilling Line
Precision CNC Machining

CNC Multi-Spindle Drum & Pipe Drilling

Asia Machine Group gantry CNC drilling lines machining tube stubs, ligament patterns, and nozzle holes into heavy drum shells and high-alloy headers.

  • Machine System: Asia Machine Group CNC Gantry
  • Tolerance: ±0.5 mm Ligament Pitch Accuracy
PEMA Automated Membrane Wall Welding Line
Automated Panel Fabrication

PEMA Automated Membrane Wall Line

Finnish PEMA automated multi-torch submerged arc welding (SAW) line producing 100% gastight watertube panels with uniform heat input and zero angular distortion.

  • Gantry Tech: PEMA (Finland) Continuous SAW
  • Panel Scope: Continuous Up to 50 ft Lengths
Submerged Arc Longitudinal and Circumferential Welding
ASME Section I & VIII Welding

Submerged Arc Seam Manipulators

Heavy-duty column-and-boom SAW manipulators paired with synchronized turning rotators for full-penetration longitudinal and circumferential shell seams.

  • System: Heavy Column-and-Boom Manipulator
  • Inspection: 100% Radiographic Testing (RT)
Superheater and Economizer Serpentine Coils
CNC Mandrel Bending

Serpentine Bundles & Superheaters

Tight-radius cold-bent serpentine bundles for economizers, superheaters, and convective banks. Stacked in dense steel shipping cradles for export transport.

  • Bending Method: CNC Mandrel Cold Bending
  • Packaging: Dense Modular Shipping Cradles
High-Bay Overhead Crane Handling Infrastructure
Material Handling

Heavy Overhead Crane High-Bays

Full-span heavy-duty overhead crane networks across active production bays, enabling safe handling of heavy-wall shells, steam drums, and modular harp skids.

  • Crane Fleet: Full-Span Heavy Crane Fleet
  • Bay Layout: Segregated Assembly & NDE Bays

Equipment Technical Work Envelopes

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Equipment / Process Technical Work Envelope Typical OEM Deliverables
Multi-Spindle Header Drilling Asia Machine Group CNC multi-spindle drilling; Heavy wall P11/P22/P91 piping HRSG upper/lower headers, saturated steam manifolds, downcomers
PEMA Automated Panel Welding PEMA multi-torch continuous SAW line; Panels up to 50 ft L × 10 ft W Furnace waterwalls & gastight membrane panels
Heavy Plate Rolling Hydraulic pinch rolls; SA-516 Gr 70 up to 150 mm (5.9 in.) thk; Heavy diameter shells ASME Section I steam drums, Section VIII pressure vessels & shells
CNC Mandrel Tube Bending Multi-axis booster benders; Tube OD 1.0 in. to 4.0 in.; Radii down to 1.5D HRSG harps, convective banks, superheaters, economizer loops
PWHT & Hydrostatic Testing Calibrated digital PWHT furnace + Hydro test bench up to 5,000 PSIG Code-certified ASME Form P-4 / Form U-1 stamped assemblies
Compliance & QA

Turnkey ASME Code Turnover

Complete documentation packages supplied with every shipment to ensure seamless OEM engineering turnover and code sign-off.

ASME Form P-4 / U-1

Manufacturer's Partial Data Reports signed and stamped by Hartford Steam Boiler / TÜV Authorized Inspector (AI).

100% MTR Traceability

Certified Mill Test Reports tied directly to heat numbers, plate stencils, tube lot numbers, and detailed weld maps.

NDE / NDT Records

Certified Level II/III Radiographic (RT), Ultrasonic (UT), Magnetic Particle (MPI), and Liquid Penetrant (PT) inspection logs.

DDP Delivery Logistics

Containerized flat-rack packaging, ocean freight logistics, customs clearance, and dedicated trucking directly to your dock.

Commercial Estimating

Submit RFQ & Drawings

Our engineering and estimating team reviews drawings, datasheets, and Bill of Materials under strict mutual NDA. Expect initial technical clarification or a formal quotation within 24–48 business hours.

US Commercial Office

UEG Thermal Systems LLC
Alpharetta, Georgia 30005, USA
Email: inquiries@uegthermal.com

All submissions are protected under strict mutual non-disclosure.