Heavy Industrial Welding &
Custom Fabrication Services

Greno Industries delivers high-precision, contract welding and custom structural fabrication services for mission-critical industrial applications. We specialize in joining heavy-gauge metals, complex weldments, and severe-service components that must endure intense mechanical pressures, high dynamic vibrations, and aggressive corrosion.

As a comprehensive precision machine shop and fabricator, our single-source workflow handles both precise multi-axis CNC machining and ASME-compliant welding under one roof, reducing logistical delays and ensuring flawless geometric alignment. Partnering with global industrial OEMs, engineering procurement firms, and MRO operations, Greno ensures rigorous code compliance, complete material verification, and structural joint integrity.

Technical Welding Capabilities & Specialized Processes

Industrial welding for high-pressure systems and heavy machinery demands exact thermal control, precise filler metal selection, and specific edge preparation. Our production floor features calibrated welding systems operated by highly skilled technicians trained to execute diverse specialized processes:

GTAW (Gas Tungsten Arc Welding / TIG)

Superior weld puddle control for critical root passes, thin-gauge geometries, and high-purity alloy configurations requiring zero internal defects.

GMAW (Gas Metal Arc Welding / MIG) & FCAW

High-deposition rates for heavy structural frames, large-scale machine bases, and thick-plate structural weldments.

Weld Overlay & Corrosion-Resistant Cladding

Precision application of specialized hardfacing metallurgies, including Stellite, Colmonoy, and high-nickel alloys, to restore worn surfaces or reinforce raw components against extreme abrasion and fluid wash.

Thermal Stress Relieving

Post-weld heat treatment (PWHT) capabilities to relieve residual structural stresses, preventing micro-cracking and ensuring long-term dimensional stability in high-fatigue setups.

Severe-Service Metallurgy & Dissimilar Metal Joining

Achieving complete structural fusion across differing material profiles requires deep metallurgic expertise. Greno designs precise welding procedures (WPS) to handle a diverse array of advanced industrial alloys:

  • Exotic & High-Nickel Superalloys: Expert welding parameters for Inconel, Monel, and Hastelloy components operating in superheated steam paths or corrosive subsea applications.

  • High-Tensile Carbon & Alloy Steels: Robust joining for AISI 4140, 4340, Chromoly, and heavy structural carbon steels requiring pre-heating profiles and post-weld structural verification.

  • Industrial Stainless Steels: Flawless processing for austenitic, martensitic, and duplex stainless steel grades (such as 304, 316, 17-4 PH, and Duplex 2205) optimized to protect against intergranular corrosion.

  • Aluminum Fabrication: High-efficiency, clean weld profiles for structural aluminum grades requiring strict oxide-layer mitigation and precise thermal tracking.

Comprehensive Code Compliance & Non-Destructive Testing (NDT)

Because a single structural or pressure-weld failure can cause catastrophic system downtime, Greno prioritizes extensive validation metrics. Our facility operates under a strict ISO 9001:2015 compliant framework, providing full material verification, certified Weld Procedure Specifications (WPS), and Procedure Qualification Records (PQR) aligned with industry-standard codes:

  • ASME Section IX & AWS D1.1 Compliance: Weldments fabricated to meet the strict structural boundaries required for heavy industrial equipment and pressure containment.

  • Liquid Penetrant Testing (PT): Surface-defect validation to detect micro-fissures or surface porosity across complex multi-pass weld joints.

  • Magnetic Particle Testing (MT): Ferromagnetic joint inspections to identify subsurface weld flaws and ensure homogenous fusion.

  • Granular Traceability Documentation: Bound quality packages inclusive of certified Material Test Reports (MTRs) for base metals and filler materials, certified weld inspector (CWI) sign-offs, and NDT compliance logs.

Frequently Asked Questions (FAQ)

What is the benefit of using a machine shop that performs both welding and CNC machining simultaneously?

When welding and machining are decoupled across separate shops, components frequently encounter sizing and distortion issues. Welding introduces immense localized heat, causing metal to distort or twist out of true alignment. By handling both processes under one roof, Greno coordinates the welding sequences with precise CNC machining allowances. We can pre-machine weld preps, execute code welding, perform stress-relieving heat treatments, and perform final tight-tolerance CNC finishing on a single production path. This single-source approach guarantees absolute concentricity, parallelism, and spatial dimensional compliance.

How does Greno Industries minimize weld distortion in large-scale machine bases and structural frames?

Weld distortion is caused by the uneven expansion and contraction of metals during rapid heating and cooling cycles. Our team mitigates this by using engineered welding fixtures, balancing multi-pass weld sequences to distribute heat evenly, and utilizing pre-heating procedures where necessary. For large-scale machine frames, we leverage post-weld heat treatment (PWHT) to normalize residual mechanical stresses before final precision machining, ensuring that the critical structural alignments remain stable throughout the entire lifecycle of the component.

What types of weld overlay and hardfacing cladding does Greno provide for high-wear parts?

We offer specialized weld overlay cladding designed to protect base materials from localized fluid erosion, slurry abrasion, and chemical corrosion. Our technicians apply high-performance alloys such as Stellite (cobalt-base) and Colmonoy (nickel-base) to high-wear surfaces like pump volutes, valve seats, and mixing blades. This process allows you to construct the core structural component from a cost-effective base metal while fortifying the active face with a severe-service alloy layer, drastically extending the runtime of the industrial hardware.

Expedite Your Industrial Welding & Fabrication RFQ

Streamline your production supply chain and eliminate the logistics of moving heavy weldments between separate fabricators and machine shops. Upload your engineering prints, structural welding symbols, and testing specifications today. Our engineering and estimating team provides rapid turnarounds on all standard and custom Request for Quotes (RFQs).