Castolin

Self-shielded, Flux-cored, Tool Joint Build-Up Wire
Proprietary, self-shielded, flux cored alloy wire specifically developed for rebuilding of drilling pipe tool-joints. The alloy has been designed to completely replace any missing materials on a tool joint surface, especially when the properties must be maintained equal to the tool joint material, AISI 4137, heated and quenched to a hardness of about 30 – 36 HRC.

Application
A tool joint might need to be built up to original surface dimension due to missing material, to extensive tong marks, removed old hardbanding or just build up under further hardbanding going over OTW 43ST-OA. This alloy has been tested & approved according to industry standards and customer approvals.

Recommended welding parameters:
Diameter: 1/16” (1.6mm)
Voltage: 26 - 30
Current: 180-240 A
Wire Extension: 20 - 35 mm
Hardness: 34 HRC

Casing Friendly Leader of “all purpose” Non Cracking Design wires. Ideal in advanced drilling operations.

OTW 16XS Extreme Service is a product ideally suited for drilling in the most demanding ERD and Ultra ERD wells. The unique nature of these wells puts severe stress on the drill string, prompting the industry to respond with High performance Tool Joint Connections (XT™, VX™, TT™). These connections produce higher torque values with lower drag and wall thickness. This requires increased reinforcement through optimized hardbanding solutions, resulting in heightened structural integrity and minimal dilution, while still providing effective overall durability.

OTW 16XS was specifically designed for use in Ultra Deepwater applications, where most wells are highly deviated and extremely deep. As these wells require the highest level of strength and prolonged performance, OTW 16XS not only contains superior casing friendly properties, but also demonstrates a unique ability to offer the best wear-resistant materials in both open hole and cased hole environments.

Providing the highest casing & open hole wear resistance, OTW 16XS contains a uniquely weighted mix of multicarbides (Cr, Ti, Mo, and W), which is dispersed uniformly throughout a tempered martensitic micro-structure. This creates superior thickness and anti-wear properties, which maximize wear resistance, strength and longevity. OTW 16XS refurbishment and reinstatement.

Hard but tough all-rounder. Best in class when combined open and case hole wear performance counts.

OTW 12Ti actively prolongs against wear in the most extreme drilling conditions, as demonstrated by its performance in highly deviated well & open hole applications. Maximum drill pipe life is achieved through superior wear-resistant properties, coupled with the ultra-smooth, casing friendly features preferred by most oil companies.

OTW 12Ti Titanium-Carbide chemical composition creates a martensitic matrix, which infuses ultra-smooth / ultrafine compounds into an abrasion resistant, ultra-hard microstructure, ensuring optimal strength and metallurgicalintegrity.

OTW 12Ti hardness scale of 61.5 HRC, combined with our Non-Cracking (NCD) and Flexible Application Designs (FAD), enables high load, open hole performance while simultaneously meeting all casing friendly requirements. End-users yield a higher return on investment and long-term savings through OTW 12Ti‘s life-extending drill pipe technology.

OTW 12Ti can be reapplied over itself and most other hardbanding materials, ensuring quick and easy repair in even the most remote locations. OTW 12Ti is a flux-cored wire alloy, designed & manufactured by Castolin Eutectic in our own state-of-the-art facilities, of tool joints.

Outstanding Casing wear resistance against current industry standard solutions with good tool performance.

OTW-13CF has a Crack-Free Design, smooth surface with low friction properties and a microstructure designed to achieve a good balance between casing friendly and tool wear, whilst remaining a cost-effective solution.

OTW-13CF has a casing wear resistance that is superior to currently established Non-Cracking wires, whilst retaining a competitive level of all round tool wear resistance. It achieves this with a slag-free deposit that precipitates a dense dispersion of hard, primary niobium and complex CrMo carbide phases finely distributed in a martensitic/residual austenitic matrix. The good resistance to high stress abrasion and erosion even when combined with heavy impact or pressure, are typical conditions that can be expected in an open hole or cased hole environment. OTW-13CF is ideally suited to intermediate to advanced hardbanding applications.

OTW-13CF is an exclusive, gas shielded, metal cored alloy wire may be reapplied over itself to refurbish worn drill pipes after drilling operations and also any of the OTW range. The Flexible Application Designed (FAD) feature implies greater fl exibility for the hardbander and signifi cant cost savings in old hardbanding removal and pipe preparation.

Outstanding Casing wear resistance against current industry standard solutions with good tool performance.

OTW-13CF has a Crack-Free Design, smooth surface with low friction properties and a microstructure designed to achieve a good balance between casing friendly and tool wear, whilst remaining a cost-effective solution.

OTW-13CF has a casing wear resistance that is superior to currently established Non-Cracking wires, whilst retaining a competitive level of all round tool wear resistance. It achieves this with a slag-free deposit that precipitates a dense dispersion of hard, primary niobium and complex CrMo carbide phases finely distributed in a martensitic/residual austenitic matrix. The good resistance to high stress abrasion and erosion even when combined with heavy impact or pressure, are typical conditions that can be expected in an open hole or cased hole environment. OTW-13CF is ideally suited to intermediate to advanced hardbanding applications.

OTW-13CF is an exclusive, gas shielded, metal cored alloy wire may be reapplied over itself to refurbish worn drill pipes after drilling operations and also any of the OTW range. The Flexible Application Designed (FAD) feature implies greater fl exibility for the hardbander and signifi cant cost savings in old hardbanding removal and pipe preparation.

For 150 °C contact heat and 1000 °C radiant heat

5 finger gloves, with simple cuffs, without lining, blue/aluminium, length 355 mm

Protective goggle, clear, scratch-proof

Highly sophisticated safety spectacle, with black frame, best comfort and fit, with adjustable flexicord retainer, conform to CE EN 166

Unprecedented wearing comfort
Welding hood revolution for:
• Electric arc welding, MIG-MAG, TIG
• Plasma arc welding and plasma cutting
• Grinding
• Panoramic vision
• Very light
New generation flexible opto-electronic hood. The side parts protecting the head and the skirt are made of washable cotton, the fabric blocks the UV. These parts are removable for washing and are replaceable. No headban thanks to the cap which provides a great comfort.

Formulated for reliable Copper joining applications

NON SPARKLING
Our XuperPhos technology is incorporated in three different brazing alloys. Each alloy has different mechanical properties but all include the distinct advantages of precise control and glare-free, clear vision of the alloy melting and flow during the brazing cycle.

Xuper CuP/CuPAg
This formulation provides the lowest fluidity of the three alloys. This high viscosity feature is ideal when trying to restrict the wetting and flow on wide gap joints or small surface areas.

Xuper PLUS CuP/CuPAg
This alloy formulation ensures the highest fluidity. This alloy is perfect for brazing capillary or close fitting joints with a larger surface area where little or no finishing is required.

Xuper PREMIUM CuP/CuPAg
The is the highest quality brazing alloy in the CuP range. Its unique melting characteristics provide variable viscosity and flow control affording the operator ease-of-use. The alloy is easy to work with a very smooth wetting action which is particularly suitable for problematic joints with difficult access.

Cu-Zn-Ni-Ag braze welding alloy for steels. Repair and capillary joining of tooling, metallic crafts, tubular frames, keys.

Cu-Zn-Ag braze welding alloy for maximum security joints. Ideal for joining of galvanized steel tubes, tubular frames, car bodies, locks, brass plumbing.

Features and benefits

• Excellent bonding
• Color match with brass
• Low melting temperature
• Maximum security certified by Lloyds (Germany)

Cu-Zn-Si braze welding alloy. For repair and joining of copper and ferous alloys.

MF - MiniFlux®: coated rods for a minimum amount of flux. For precision braze welding operations.

Features and benefits

• Good fluidity
• Ease of use
• Universal applications

High-silver content Cadfree® brazing alloy containing nickel and manganese

1703 is a silver alloy containing Ni and Mn and is designed for the brazing of hard metals. It is recommended for joining steel tools and sintered carbides.

Low-melting temperature alloy for capillary brazing of aluminium. Profiles, tubes, air conditioning equipment, heat exchangers.

Recommended for good strength joints in shoot and wrought aluminium and some aluminium alloys. Ideal for welding furniture and fittings, window frames, aluminium utensils and applications within the aircraft and radio industries.

Castolin 190 can be used in conjunction with the Oxyacetylene and Tungsten inert gas shielded (TIG) processes.

An aluminium silicon alloy producing good strength joints and good resistance to corrosion. EutecRod 190 MF has a low melting point which in turn minimises distortion effects, has excellent flow characteristics and provides a good colour match to most aluminium alloy components. Not suitable for parts requiring anodised finishes or aluminium alloys containing more than 1.5% magnesium.

Paste flux for braze welding with Brazing Alloy 18. For ferrous and copper alloys, especially galvanized steel.

Features and benefits

• Suitable for all heating methods
• Excellent temperature resistance
• Promotes optimal alloy bonding

Powder flux for all high-silver content brazing alloys. Ideal for small or fine steel parts.

Powder brazing flux for capillar brazing with high silver content alloys. At elevated temperature the flux reduces the metal oxides on the base metal and activates the surface. This results in an optimal wetting of the filler metal and increase of the capillar effect in the gap between the two surfaces to be joined. The development of a surface alloy between the filler metal and the base metal ensures the metallic continuity. The surfactant Armosin helps to obtain an even thickness of the brazing flux, which adheres strongly with the base metal during the heating phase. The brazing operation is easier, this increases the productivity specially for large series of parts.

The brazing flux 1802 N Atmosin is designed for use with the following heating methods: oxyacetylenic flame, other oxy-fuel flames, air-fuel flames and furnace without gas protection.

Industry Examples

• Food & drink: Processing & storage containers, water & other pipes.
• Electrical & electronics: Connectors, waveguides, contacts, rotors
• Precision instruments: Surgical & optical instruments, watches, pressure gauges. Air conditioning & refrigeration: Ducts, valves, heat exchangers.
• Plumbing & household: Heating & gas pipes, drains, household fittings, furniture, lamps. Arts & crafts: Frames for spectacles, jewellery, musical instruments, objets d'art.

Tungsten carbide - 17% cobalt

55583C is a spherical powder manufactured by agglomerating and sintering a formulation of 83% tungsten carbide with 17% cobalt by weight. It has been developed for spraying with the CastoJet CJK5 system which is a High Pressure HVOF using kerosene as liquid fuel.

55583C powder is also suitable for other HVOF systems or plasma spraying. 55583C sprayed coatings are hard and dense with high bond strengths on a wide variety of metallic substrates. They are tougher with a better fretting and impact resistance than WC-12Co coatings.

They resist exceptionally well to low stress abrasion, fretting wear and hard particle erosion for service temperatures up to 500°C.

Excellent resistance to friction and corrosion

Alloy powder for anti-wear protective coating of steels, stainless steels, nickel-alloy steels and cast iron.

Features and benefits

• Easy to use for thick coatings and on irregularly shaped parts
• Excellent finish after machining
• Applied by spraying with subsequent-fusion-process, using CastoDyn DS 8000 torch

No deformation or structural change in base metal. Hard but fully machinable deposit

Alloy powder for anti-wear protective coatings on all types of metals, except pure copper and magnesium. Applications include shaft sleeves, crankshafts, press pistons, plunger pistons and cylinder liners. Requires separate bond coat of RotoTec 51000 alloy.

Features and benefits

• Smooth, self-lubricating deposit with low coefficient of friction - achieves good polished finish
• Good resistance to corrosion
• Applied by "cold" spray process, using CastoDyn DS 8000 torch

Excellent resistance to abrasion, low coefficient of friction

Alloy powder for anti-wear protective coatings on all types of metals, except pure copper and magnesium.

Applications include pinch rolls, grippers, excavators and scrapers. Requires separate bond coat of RotoTec 51000 alloy.

Features and benefits

• No deformation or structural change in base metal
• High density of very hard Diamax phases
• Roughness of deposit improves grip
• Applied by "cold" spray process, using CastoDyn DS 8000 torch
  

Alloy Fe-Cr-Ti-Si-Mn

Self bonding alloy with enhanced surface wear resistance properties to combat erosion, thermal shock up to 650°C

For manual applications with low welding currents

• Plasma welding, plasma spot welding, TIG welding
• Clearly laid-out control panel
• Simple pre-selection of the welding parameters
• Compact design

Micro GAP 50 DC is ideal for welding applications that require precision, high-quality layer quality and low dilution; in particular when fully automatic welding is impractical or inapplicable due to low numbers or the diversity of the tasks. The welding units are available with various features. The operation is carried out via push button selector switches and knobs on the front display. Micro GAP 50 DC is designed for manual and semi-automatic welding tasks in which frequent parameter changes are required.

All the settings are displayed on the LCD display in plain text, and up to 100 memory locations are available for storing the welding parameters. The extremely powerful inverter delivers 33 A at a 100% duty cycle, which is also sufficient for micro-plasma welding.

Kerozene fuelled high pressure HVOF for cold sprayed coatings of high quality

The CJK5 HVOF is a high pressure, high velocity thermal spray process, using liquid fuel (kerosene) and oxygen which are fed into a combustion chamber, where they are ignited and continuously combusted. The resultant hot gas at a pressure close to 1 MPa, emanates through a converging – diverging nozzle and travels through a straight section. The jet velocity at the exit of the barrel (>1000 m/s) exceeds the speed of sound. A powder feed stock is injected into the gas stream, which accelerates the powder up to 800 m/s. The stream of hot gas and powder is directed towards the surface to be coated. The powder partially melts in the stream, and deposits upon the substrate. The resulting coating consists of thin overlapping platelets, has low porosity and high bond strength. The CastoJet® Kerosene 5 - CJK5 - is the latest Castolin Eutectic development of kerosene fuelled high pressure HVOF (High-Velocity Oxy-Fuel) systems. The CJK5 developments have focused on the gun, powder feeder and operator interface. The operator interface is simple to use with a touch screen interface. The powder feeder has mass flow controlled carrier gas and closed loop motor control for reliability and repeatability of powder feed rates.

For anti-wear and anti-corrosion cold arc sprayed coatings

The EAS4 HF was developed to improve running costs, coating deposition and ease of maintenance. The Gun design has been upgraded with screw in tips for
ease replacement and redesigned air concentrator together with front wire guide give significant efficiency gains. The Arc Gun and the drive system are coupled to a 350 amp,
switched voltage power source. This power source features sealed electronics for excellent reliability in the harshest of spray environments. The wire feeder unit is neatly
mounted on the power source, leaving it free to swivel and follow the operator whilst spraying. There is no motor in the gun. Instead, the Gun 4 uses a patented
‘Synchrodrive' system, where a single, sealed motor with a flexible drive arrangement, powers a reliable, positive drive push / pull up to a distance of 20 m. Graduated /quantifiable tensioner for the wire.

Technical data

• Continuous operation at 350 amps for high productivity
• Reliable Push Pull system for spraying up to 20 m in all positions
• Allow complete use of all the wire, unlike push only system
• New air cooled contact tubes with wear resistant tips
• Double grooved feed rollers for double operation life
• Robotic interface

EuTronic Arc is the highest productivity thermal spraying process. EuTronic Arc is an Arc Spray Process using a pair of wires which are melted by an electric arc. This molten material is atomised by compressed gas and propelled towards the workpiece to form a coating. EuTronic Arc is a cold spray process having the advantage of not requiring the use of oxygen, kerosene or a combustible gas which means more economic coatings. Low running costs, high spray rates and efficiency make it a good tool
for spraying extensive areas or a large number of parts.

• Anti-wear coatings
• Bridges (concrete and steel)
• Cement works
• Engineering bond coats
• Mining
• Offshore / oil & gas
• Pulp and paper
• Steel works
• Shipbuilding / marine
• Structural steelwork
• Thermal power plants
• Vessels and enclosures
• Waste and recycling
• Wind turbine towers, fences

Cold Wire Feeder Electronic

Drive: efficient four roll drive with 30mm wire feeder rolls, fit in wire feeder for 16 Kg wire coils.

Special designed pressure arms care for a smooth and reproducible pressure of the wire onto the feeder rolls within the drive. Electronically motor controller for the four roll wire feeder.

Functions: forward/backward movement, wire inching, wire feedback, pulse functions, control signals for fault indication. Buttons for: wire inching, forward/backward movement, speed and pulse adjustment.

Protecting the torch against overheating

Under normal conditions a cooler is connected with the power source and the torch. The coolant is pumped by the cooler through the welding machine, taken at the front of the power source by the torch and led back again. The coolant is sucked from the cooling liquid tank into the cooling circuit by a pump. In the return the hot liquid is pumped through a cooling radiator and finally collected into the cooling liquid tank.
The cooling capacity of a cooling unit depends on: the ambient temperature and the through-flow rate Q (l/min). The through-flow rate Q depends on the length of the interconnecting cable, the torch hose assembly length and the diameter of the hose.

Cooling with integrated chiller

Weight 50 kg
Dimensions L x W x H (mm) 915 x 445 x 400 mm
Special cooling liquid for PTA torches 5l tank
Use only Castolin Eutectic dedicated cooling liquid.

Holds gas cylinders, powder feeder, power source and cooling.

Wide range of additional trays and accessories for better configuration and ease of use of the trolley.
Weight 45 kg
Dimensions L x W x H (mm) 1.190 x 740 x 1.415

Universal Coating System

Castolin Eutectic´s GAP UniCoating V2.0 integrates all components necessary for the overlay welding of round parts. Well suited to the Glass Mould industry for baffle and bottom plates. Also very efficient at welding various forge dies and moulds as well as engine valves. With the 200 kg table the machine is capable of handling the smallest parts as well as moderately large ones.

The GAP UniCoating V2.0 incorporates a complete Plasma power source. This unit uses the latest technology in plasma welding. With fully programmable gas controls, pilot arc settings, powder delivery and welding current the GAP UniCoating can deliver a completely repeatable, precisely engineered weld overlay. Welding parts can be coated in one welding cycle in one layer or multilayer
(also with vertical/horizontal offset).

Modular System to cold spray or to hot spray

Castolin Eutectic's modular CDS 8000 torch performs more flame spraying processes, with more alloy powder types than any other comparable system. The CastoDyn SF Lance kit increases this already-wide range of applications by allowing the CDS 8000 to perform spraying with simultaneous fusion. Its robust, water-cooled design permits sustained high-intensity spraying, and is ideal for both automated and manual applications.

The kit's two Standard Spray Modules (SSM 50 and SSM 51) offer different flame powers, so workpieces of any mass or thickness can be coated.

Modular delivery system to spray-fuse Eutalloy® powders

SuperJet Eutalloy S® is an oxy-acetylene thermal spray torch which delivers very precise anti-wear protective coatings. Alloy powders are sprayed onto the part to be coated and are fused simultaneously.

Bonding with the base metal by diffusion ensures that it does not reach its melting point. The dense coating is not affected by dilution and retains all its designed properties.

Modular design
The system's modular design makes it easy to remove all components for cleaning, maintenance and eventually replacement.

The oxy-acetylene fusion torch to preheat and fuse Eutalloy® RW coatings

The advantage of local heating using the CastoFuse torch is obvious compared with an oven. Local preheating
and fusing prevents the dispersion of heat in the rest of the workpiece, to the surrounding area and into the oven walls. CastoFuse offers the heat where needed. Furthermore, only a small investment is required.

Designed for easy operation
The CastoFuse torch requires no specialist skills to operate. The only adjustable control is the valve used to set the acetylene flow, other controls are all simple on/off switches.

Motor-Controller for the powder feeder EP2

The maximum rate of the of the powder quantity depends on: powder feeder (type of wheel, powder density) and torch.

With the powder feeder EP2 it is possible to feed up to 7kg/h nickel base powder without tungsten carbide and up to 10 kg/h nickel base powder with tungsten carbide.

Motor-Controller for the powder feeder EP2

The maximum rate of the of the powder quantity depends on: powder feeder (type of wheel, powder density) and torch. With the powder feeder EP2 it is possible to feed up to 7kg/h nickel base powder without tungsten carbide and up to 10 kg/h nickel base powder with tungsten carbide.

Liquid cooled manual torch

Liquid cooled manual torch, available also with 70° and 180° neck

CastoTubes® are Castolin Eutectic's response to the market request for erosion-resistant pipe sections and elbows.

They consist of a mild steel tube which has been internally wearfaced with TeroMatec® 4666 alloy. This provides the exceptional wear resistance of our well-known 4666 CastoDur Diamond Plates®.

Furthermore, by avoiding expensive forming operations of flat plates into tubes, seamless small diameter CastoTubes® are available.

Unique combination of ultra-hard phases providing best service life

CDP® 4666 SinusWave is latest addition to our family of highest performance wearplates. Unique weld bead geometry provides additional value, improving even more wear performance and minimizing plate scrap. Sinus pattern completely eliminates linear overlapped beads. This in turn results in identical wear properties in any direction and allows most economical use of entire wearfaced surface. Coating technology preserves all mechanical values of base material allowing further processing by rolling and bending.

CDP® 4666 is a composite material made of a structural steel backing and a hard weld surfacing, corresponding to DIN 8555

CDP® 4666 is a composite material made of an easy-to-weld steel plate coated by means of open arc welding with a layer of abrasion and erosion resistant alloy.
The complex carbides coating shows a superior wear resistance when compared to CrC wearplates due to:

1. higher carbide density = higher resistance to finer abrasives
2. higher average carbides hardness = higher resistance to abrasives

Industry Examples
Cement, Mines and Quarries, Steel, Waste and Recycling, Glass, Coal Fired Power Plants and in general any industry where raw materials handling and processing, up to 500-600 °C, causes wear by means of abrasion and erosion.

Applications
Any application involving abrasion and/or erosion. CDP® 4666 is at the top of the range of welded CDP®. For better performance against abrasion and especially to improve the erosion resistance, only CDP® 112 or PTA CDP® 6503 can be taken into consideration. When applied for high temperature applications, above 450-500 °C, or when used at high temperature as a structural part, a material with higher mechanical and oxydation resistance should be chosen.

Dispersion Hardening «DH» Wearfacing Alloy Range

Main Application: Steel, Cement, Waste & Recycling - Transport screws, furnace chutes, exhaust fans, cyclones, conveyors, mixer blades.
Special Features: High temperature oxidation resistance to 850°C.
Weld deposit exhibits stress relieving microfissures. Versatile usage over wide parameter range.
Faster deposition rate for reduced labour costs. Extreme resistance to abrasion, erosion.

Solid-wire, gas-shielded continuous electrode for joining applications on a wide range of mild and low-alloy steels

Features and benefits

• High deposition rate, reduced welding time
• Very low dilution, particularly in pulsed mode
• Eliminates common solid-wire welding problems, such as sticking and incomplete fusion

Low-alloy steel TIG filler rod for anti-wear protective coating, rebuilding and joining of parts in high-strength steels

Features and benefits

• Heat-resistant up to 450°C
• Very high strength joints
• Good impact value at -20°C

Applications
CastoTig® 45252 W is especially designed for precision joining, particularly for the root pass and the final pass. The coating of tool edges and angles for structural steels, heat resistant cast steels, 13CrMo44, 15CrMo3 steels and GS22CrMo4 cast steels. Case-hardening and heat-treatable steels such as, for example, 15Cr3 - 16MnCr5 - 20MnCr5 or 25CrMo4.

Innovation in maraging steel

XHD 6860 - higher performance electrode with a completely new metallurgical formulation with

• increased as welded hardness (40 HRC)
• increased aged hardness (60 HRC)
• increased tempering resistance

XHD 6860 protective weld coating solutions are recommended for parts particularly in the following industries:

• Tool & Die manufacture / maintenance / repair sectors
• Automotive press / forming dies
• Light alloy pressure die casting
• Plastic injection moulding
• Cold trimming, stamping, extrusion rams, mandrels, screws, shafts etc

Typical applications include: machine tools and dies for cutting, trimming, shearing, stamping, forming, extrusion, metal working operations etc.

This process is a unit for welding, circular exteriors and interiors intended mainly for coating of internal bores from Ø 30 mm

Advantages

• Internal & external bore welding machine
• Can be used with any conventional MIG/MAG machine
• Easy to set
• For internal bores down to 30mm
• Separate control box
• Self-indexing up
• Variable speed
• Water-cooled head available
• Torch extension kit supplied

Manual electric welding and TIG welding with a single unit connected to 230 V DC

Advantages

• Minimum size, minimum weight, low power consumption with high efficiency and generator compatibility
• Variable characteristics allow welding of every kind of electrodes
• Low-spatter manual electric welding with outstanding arc stability thanks to the resonance control system
• Easy ignition of all types of electrode
• Ideal unit for TIG welding offering contact ignition with ignition current turned down
• Unit is suitable for outside welding operations with easy-change fan filters

Powerful, compact, efficient

Advantages

• Powerful 250 A: MMA and TIG DC (lift-arc)
• Full digital inverter
• Resonant control for optimum welding results
• Pre-programmed ignition parameters for rutile, basic and cellulose electrodes
• Lightweight and compact design for professional use in industry and crafts (only 12.5 kg)