Welder depositing a corrosion resistant alloy overlay on a large flanged pipe
We mitigate corrosion

Engineered Cladding.
Built to Last.

Specialized in CRA weld-overlay cladding, pipe fabrication, inspection & coating solutions for the most demanding industries.

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CRA WeldingExpertise
Global StandardsISO 9001:2015
On-time DeliveryCommitment
Safety FirstISO 45001:2015
About CRACladding.com

Trusted Partner for
Corrosion Critical Solutions

PT. IWW CRA Energy Solutions is a trusted name in CRA weld-overlay cladding and corrosion protection. With state-of-the-art facilities and a team of highly skilled professionals, we deliver solutions that exceed industry standards.

  • Advanced welding & cladding technology
  • Experienced & certified workforce
  • Stringent quality control & testing
  • Commitment to safety, quality & delivery
More about us
Petrochemical plant at dusk — the industries we serve
Serving plant operators across the region from Batam, Indonesia.
ISO9001:2015Quality Management
ISO45001Occupational Health & Safety
Strategically LocatedBatam, Indonesia — Serving Global Industries
Industries We Serve

Trusted by Industries
That Drive the World

CRA cladding solutions that enhance performance, extend life and reduce lifetime costs.

Oil & Gas

Sour service, CO₂ and high-chloride duty, from wellhead and riser to refinery piping.

Petrochemical

Aggressive process streams carried at elevated temperature and pressure.

Fertilizer

Ammonia, urea and acid circuits that attack unprotected carbon steel.

Power Generation

Boiler, FGD and cooling-water systems exposed to erosion-corrosion.

Desalination

Seawater intake, brine and high-chloride reject lines in constant service.

Infrastructure

Coastal and marine structures specified for a long, low-maintenance design life.

The technology

A protective alloy that becomes
part of the steel

Corrosion resistance alloy (CRA) weldoverlay cladding is a welding process that deposits surfacing material onto a substrate to improve corrosion or wear resistance. Because the overlay is fused rather than mechanically fitted, it forms a true metallurgical bond with the base material — the cladded component then acts as one composite material.

Corrosion resistant alloy

Alloy 625, 825, Monel 400, 316L/317L/904L, duplex or hardfacing grades

Wetted face

Fusion / bond line

Diluted transition zone created by the arc — no adhesive, no interference fit

Metallurgical

Carbon or low-alloy steel

ASTM A106, A234, A350, A694, API 5L and other weldable backing materials

Structural
Read the full cladding specification
Internal bore of a large pipe showing a completed helical weld overlay bead
Pulsed hot-wire GTAW laying an Alloy 625 overlay across a raised flange face — the same sequence our vertical cladding cells run on valve bodies, well heads and vessel nozzles.
How a job runs

Qualified, monitored,
documented

Overlay welding is performed to WPS/PQR qualified in accordance with ASME Section IX. In-process QC covers visual and dimensional checks plus welding monitoring, and NDT includes UT, DPT, PMI and dimensional examination.

ASMEAPI ISODNV
01

Procedure qualification

WPS and PQR qualified to ASME Section IX and the client project specification before a single bead is laid.

02

Surface preparation

Machining, bevelling and cleaning of the substrate so the arc meets sound, contaminant-free parent metal.

03

Computerised weld overlay

Horizontal GTAW systems clad line pipe and spool pieces up to 12 metres; vertical pulsed hot-wire GTAW cells clad fittings, flanges, valve bodies and pressure vessels. PLC control holds heat input, oscillation and travel constant across the whole deposit.

Hot-wire GTAWPLC controlledLow dilution
04

Examination

Penetrant testing on every component, remote video-probe inspection of bores up to 12 m, ultrasonic bond integrity checks, magnetic particle inspection, cladding thickness survey and PMI by XRF and spectrometer.

05

Fabrication & hydrotest

Spools assembled to ASME B31.3 / B31.8 or API 1104, then hydrostatically tested on our in-house station with controlled test water.

06

Coating, documentation, load-out

External anti-corrosion coating, painting, thermal spray or insulation as required — released with a final document of conformity covering methods, techniques and acceptance criteria.

Consumables

Alloy families we deposit

Select a family to see the grades we routinely qualify and deposit.

Nickel and nickel-alloy grades

The workhorse overlays for sour service, high chloride and acidic duty — and the grade behind our EGCS overboard pipes.

Inconel 625Incoloy 825Monel 400

Any other weldable alloy is available upon request.

Sectioned pipe coupon showing the clad bore against the carbon steel wall
A sectioned coupon — the corrosion resistant alloy bore bonded to the carbon steel wall.
What we can clad

Product types and size envelope

Cladding product sizes
ComponentSize range
Pipes2″ and above
Flanges2″ and above
Fittings3″ and above
Elbows4″ and above

Limitations

  • Item ID prior to cladding is > 42 mm
  • Item wall thickness shall be > 7.1 mm
  • Pipe length up to 6 m — 12 m available on request

Cladding product types

  • Pipes
  • Fittings and LR bends
  • Flanges
  • Valve bodies
  • Risers — including external cladding for risers
  • Well heads
  • Pressure vessels — shell, nozzle and dished ends
  • Other similar geometrical shapes
Large diameter reducer with a completed weld overlay, mounted on a rotator
Completed overlay on a large-bore transition piece, still on the turning roll.
Vertical cladding cells with vessel components mounted on positioners
Vertical pulsed hot-wire GTAW cells — cladding shop, Batam.
The plant

A multifunctional facility
on 10,000 m²

Weldoverlay production, blasting and painting bay, machining area, hydrotest station, fabrication area, stores and offices — sequenced so a component never leaves the quality system between stages.

  • Computerised horizontal GTAW for line pipe and spool pieces up to 12 m
  • Computerised vertical pulsed hot-wire GTAW for fittings, flanges, valve bodies and vessels
  • CNC, lathe, milling, drilling and gas cutting machines
  • Hydro testing, blasting, painting and TSA / TSZ coating equipment
Tour the facility
Customers & End Users

Trusted on live projects

SPM Oil & Gas PT. McDermott Indonesia NOV Completions & Production Feen Marine PT. Citra Tubindo Engineering International Piping Products (Europe) Sirris Synergy Pte Ltd Carimin Profab
2015Founded in Batam
10,000Multifunctional facility
5Core capabilities
ISO9001:2015 Quality Management
Our mission

Meet — and at opportunity exceed — our client's expectations in quality, delivery and cost

  • Developing specialised and sophisticated machinery and equipment
  • Investing in a skilled workforce while also encouraging the unskilled workforce
  • Continuous improvement in our production process, testing methods and procedures
Our vision

To be a leading manufacturer and fabricator for the energy sector across the Asian and Australian continents

CES management respects the core values of business and maintains the principles of achieving the mission and vision through safety, quality of service, customer focus, teamwork, passion and integrity.

SafetyQuality Customer focusTeamwork PassionIntegrity
Let's scope your project

Need a Custom
Cladding Solution?

Our engineering team is ready to support your requirements with the right solution — drawings, material grade and quantity are all we need to come back with a qualified approach, schedule and price.

CRA Energy Solutions quality inspection
Batam, IndonesiaServing Global Clients
+62 778 8017749Mon – Fri 8:00 – 17:00
sales@cracladding.comWe respond within 24h
Let's build something great together