Cladded and Weld Overlay Products:

Metal Cladding

Cladded & Weld Overlayed Components for Oil & Gas, Refinery and Petrochemicals Industry

CLADDING & WELDOVERLAY:

Cladding & Weld Overlay provides protection against corrosion and wears for process and pipeline equipment. Weld overlay can be applied to extend the service life of new parts, or refurbished parts that have corroded or worn surfaces Variety Alloy and Steel LLP Integrated and advanced welding technologies provide effective welding solutions for:

Oil&Gas Industries

Sub-Sea Applications

Petrochemicals&Refineries

TYPES OF CLADDING PROCESS: Weld Overlay: Weld overlay is a fusion welding technique used to deposit weld metal on components to achieve the desired dimensions or properties replacing lost material or providing wear or corrosion-resistant surface.

Explosion Bond: Explosion bonding is a process of bonding two dissimilar materials with the help of pressure and heat produced by an explosion. The explosive material is spread on the material to be cladded which is kept on top of the base material. On ignition of the explosive, resultant thrust bonds the clad plate on the base plate kept underneath. Various combinations of clad plate and base plate thickness can be bonded, depending on the job requirements.

CLAD & WELD OVERLAYMATERIALS:

BASEMATERIAL	Carbon Steel, Stainless Steel &LowAlloy Steel
CLADMATERIAL	SS304,SS316L,SS317L,SS410,UNSN08825, UNSN06625, HastelloyC22, HastelloyC276, HastelloyB3, UNSN04400
WELDOVERLAYMATERIAL	ER410S,430, ER308L,309L, ER309LMo, 316L, 317L, UNSN08825, UNSN06625, HastelloyC22,Hastelloy C276, HastelloyB3, UNSN04400

CLADDED PIPES, FITTINGS & FLANGE:

Variety Alloy & Steel LLP offers the following cladded & weld overlayed components of various sizes & thicknesses with cladding by weld overlay or explosion bonding:

PIPES	DIAMETER	THICKNESS	CLAD/WELD OVERLAY THICKNESS
Welded Pipes	2″NB to 42″NB	Minimum 7mm & above	1.5mm to 4.5mm
Seamless Pipes	2″NB to 42″NB	Minimum 7mm & above
FITTINGS	SIZE	THICKNESS	WELD OVERLAY THICKNESS
Elbows	2″ & above	Minimum 7mm & above	1.5mm to 4.5mm
Reducers	2″& above	Minimum 7mm & above	1.5mm to 4.5mm
Tees	2″ & above	Minimum 7mm & above	1.5mm to 4.5mm
Weld olets	2″ & above	Minimum 7mm & above	1.5mm to 4.5mm
Sockolets	2″ & above	Minimum 7mm & above	1.5mm to 4.5mm
FLANGES	SIZE	THICKNESS	WELD OVERLAY THICKNESS
WNRF, BLRF, WNRTJ	2″ & above	Minimum 7mm & above	1.5mm to 4.5mm(orasreq.)
VESSELS&HEADRES	DIAMETER	THICKNESS	WELD OVERLAY THICKNESS
VESSELS	600mm to 3500mm & upto 20mtr. Long	Minimum 7mm & above	1.5mm to 4.5mm

WELD SURFACING AND OVERLAY:

VASLLP has developed an extensive range of procedures and techniques for weld overlay applications for the Oil & Gas, Petrochemical, and Refineries.	Salient features of ETR -S
	Maximum Bore Depth	: upto 4m
	Weldable Bore Dia	: 45 to 320mm
	Welding Speed	: 340 to 450mm/min
	Deposition Rate	: 1.7 to 2.5kg/hr
To cater to the needs of its clients for weld overlay items, VASLLP has indigenous Automatic Overlaying Machines and EndlessTorch Rotation (ETR) welding machine from Fronius which has the advantage of overlaying on 3D curved surfaces.	Automatic Overlaying Machines ( 3 Nos.)
	Maximum Bore Depth	: upto 3 mtrs
	Weldable Bore Dia	: 100 to 1000mm
	Welding Speed	: 100 to 250mm/min
	Deposition Rate	: 1 to 2 kg/hr
The ETR-S combines the features of the conventional TIG Hot Wire Cladding System as regards weld quality, functionality, and software features.	Pipe ID overlaying Machine:
	Maximum Pipe Length	: 1 2 mtrs
	Size	: 200 to 1000mm
Function of Arc Voltage Control (AVC) aids in the deposition of uniform thickness of weld overlay on various surfaces.

QUALITY CONTROL SYSTEM:

FOR Clad Fabrication:

Internal Ultrasonic Testing of the plate before fabrication.

Cleaning of clad surface after forming of the head before heat treatment if required

Heat treatment in an electric or gas-fired furnace in a controlled atmosphere to avoid any Contamination and to prevent oxidation of surfaces.

Ultrasonic testing of formed components forde-bond check between clad and base material.

NDE testing, Radiography, Hydrotest & PMI check

FOR Weld Overlayed Items:

Prior to overlay, grinding, cleaning and dye penetrant testing of the surface of base material to be overlayed

Overlaying as per qualified welding procedure.

Dye penetrant testing of overlayed surfaces.

Ultrasonic Testing from an opposite surface for checking un-fused/disbond areas.

QUALITY CONTROL SYSTEM:

VASLLP follows a stringent quality control system so that all the parameters have complied and the customer gets high-quality product:


ULTRASONIC TESTNG	HARDNESS TESTING	DYE PENETRANT TESTING	MAGNETIC PARTICLE INSPECTION


RADIOGRAPHY	HYDRO TESTING	POSITIVE MATERIAL IDENTIFICATION	DIMENSIONAL INSPECTION

Products

2nd floor , Sakina manzil no.2 , Raja ram mohan roy marg , Charni road east , Mumbai 400004

+91 - 022 - 66394005, 66109892

varietyalloyssteels@gmail.com sales@vasllp.com