Cladding Flanges,Cladding pipes,Cladding fittings, A694 F42, F52, F60, F65, F70,

Product Specification

Cladding Flanges,Cladding pipes,Cladding fittings, A694 F42, F52, F60, F65, F70, Inconel® 600/625 & Incoloy® 800/825.

Cladding Flanges , Cladding pipes, Cladding fittings, A694 F42, F52, F60, F65, F70, Inconel® 600/625 & Incoloy® 800/825

CLAD is a composite technology of metallurgy for two kinds of different metals. We can make overlay welding on most carbon, low alloy, chrome moly, stainless steel and other steels with variety of corrosion resistant alloy including Inconel®, Incoloy®, Monel®, Hastelloy®, stainless steel and hard facing steels. Benefit from our advanced computer controlled welding stations, we offer very low dilution of alloy deposite. Real time video monitoring and recording system ensure perfect tie in and weld path.Why CLAD

Zhongzhou Special Steel  
Cladding VS Carbon Steel and CRA Steel

	Cladding	Carbon Steel	CRA Steel
Service Life	Longer	Shorter	Longer
Safety	Anti Corrosion + High Mechanical Property	High Mechanical Property	Anti Corrosion
Weight	No Additional Corrosion Allowance Needed	Additional Corrosion Allowance Needed	Heavier, due to lower mechanical property
Purchase	Welding Wire in Stock	Easy to Purchase	Hard to Purchase and Long Delivery
Cost Impact	If you consider long term cost	Low Cost	Expensive

Zhongzhou Special Steel  Cladding Capability

Personnel

Zhongzhou Special Steel provides pipeline craft designing and material application recommendations. We have professional welding engineers, well-trained welders, experienced NDT inspectors,  welding in-process inspectors, assuring the high quality cladding products.

Cladding Welds Method

• GTAW (TIG) Gas tungsten arc automatic / Manual (Hot and cold wire) welding
• Manual FCAW (MIG) Welding
• Manual SMAW Welding

What We Cladding

Zhongzhou Special Steel owns sets of computer controlled automatic orbit welding stations and integrated automatic weld stations.

• Pipes, pipe fittings, and prefabricated piping spools
• Flanges, blinds, o-lets and nozzle forgings, blocks, tees
• Valve bodys, balls, bonnets, seats and other valve components
• Risers, flow lines, and topside piping components
• Heat exchanger shell and tubesheet
• Hardfacing of wear surface for stabilizers and other drilling equipments

Pipe and Bend Cladding

• 
  Pipe base material includes:
  • ASTM A53B, A106 Gr. B, API 5L B, X42, X52,X60, X65, X70; A333 GR. 6; Stainless Steel......
• Base pipe thickness: 6mm ~ 75mm
• Pipes nominal bore: 130mm ~ 600mm
• Pipe length: Up to 12.2 meter
• Bending radius: 3D to 8D or on customers’ requests
• Processing for clad bends: hot induction bending cladded pipes and cold bending available

Valve, Forging and Fitting Cladding

Bore size range: 38mm~1800mm

• Valves base material
  • A216 WCB, WCC; A352 LCC... …
• Flanges base material
  • ASTM A105, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2
  • ASTM A694 F42, F52, F60, F65, F70
  • ASTM A182 F304/304L, F316/316L …
  • API 45K, 60K, 75K
  • AISI 4130(M), 4140, 4340, 8630(M)
• Pipe fittings base material
  • ASTM A234 Grade WPB, WPC, WP11, WP22;
  • ASTM A420 WPL6
  • ASTM A860 WPHY 42, WPHY 52, WPHY 60 WPHY 65, WPHY 70
• Other components
  • ASTM A516 GR. 60 / GR. 70
  • Other material on request
• Cladding material include
  • Stainless steel 304/304L & 316/316L, 904L
  • Inconel® 600/625 & Incoloy® 800/825
  • Duplex stainless steel SS31803, SS32750, SS32760
  • Hastelloy® C276, C22 Monel® K-500, 400
  • Other material on request

Zhongzhou Special Steel  Quality Assurance
Our experienced and qualified technicians utilize NDT techniques to ensure high quality and reliability of our products during the weld overlay process. Final documents for clients will be issued, including all inspection process recordings and procedures.

• Radiographic inspection - RT

RT test is carried out by 3rd party professional RT testing company at the cost of Zhongzhou Special Steel  .

• Dye penetration test- DPI

All components are subjected to penetrate testing prior to overlay deposition and on completed items. Remote video-probe inspection technology is utilized on inspecting internal bore diameters of pipe. We are able to examine inside length of the pipes up to 6.5 Mtr.

• Positive Material Identification – PMI

We utilize the world's best 26-channel portable online PMI device to recheck chemical composition of the base material and cladding layer. The test reports will be completely saved in the computer on PMI device and can be traced. Shanghai Research Institute of Materials and the imported specimen ensure the PMI accuracy.

• Ultrasonic Testing – UT

We utilize the world’s advanced wave and standing wave detector to do the ultrasonic testing on the integrity of the weld overlay layer and the base material to guarantee the cladding quality. Zhongzhou Special Steel  strictly comply to the customer’s measuring standards of cladding thickness.

• Magnetic Particle Testing— MT

We utilize fluorescence or visual techniques to test the surface defect on ferromagnetism components after all production phases are completed.

• Visual Test—VT

Using remote video camera techniques and through the outlay screen, we can examine the cladding appearance and record the VT process media. VT process media will be submitted to the customer as part of the quality assurance documentations.

• Clad Layer Thickness Checking

Innovative equipment will be used for the CRA clad layer thickness checking, such as the Inconel 625 layer welded on the carbon steel and low alloy steel. The clad layer of the pipes or  bends will be checked continuously to meet customers’ requirements.

Nowadays, our own Butt Weld WPS/PQR already covered C.S, Low Alloy High Strength Steel, Austenitic Stainless Steel, Super Austenitic Stainless Steel, Duplex Stainless Steel and Cladding Steels, so we can also provide shop pre-fabrication; Shop hydrostatic testing pressure up to 10,000 PSI;