CWI WELDING

CWI Welding Generation-4 Stainless, Nickel and Copper Alloy Products

Stainless Generation-4 Welding Products   SDS    

GEN 307
ER307

A popular European grade 307 used for automotive exhaust applications and dissimilar stainless grades.

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GEN 308/308H
ER308/308H

GEN 308/308H is used for TIG, MIG, and submerged arc welding of unstabilized stainless steels such as Types 301, 302, 304, 305, 308. This filler metal is the most popular grade among stainless steels, used for general-purpose applications where corrosion conditions are moderate. Can also be certified as ER308H

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GEN 308/308L
ER308/308L

308 except the carbon content has been held to a maximum of .03% to reduce the possibility of intergranular carbide precipitation. Ideal for welding Types 304L, 321, and 347 stainless steels. This is a suitable wire for applications at cryogenic temperatures.

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GEN 308LHS
ER308LSi

GEN 308LHS is a stainless steel welding wire for MIG welding. This wire is used to weld equipment made with 304 and 308 stainless grades. Welding speed is higher than 308 or 308L due to improved wettability of weld metal.

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GEN 309/309L
ER309/309L

GEN 309/309L is of similar composition as GEN 309 except for the carbon content being lower than .03%. The lower carbon content reduces the possibility of intergranular corrosion. GEN 309L is preferred over 309 for cladding over carbon or low alloy steels, as well as for dissimilar joints that undergo heat treatment.

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GEN 309LHS
ER309LSi

GEN 309LHS is of the same chemical com-position as 309L, with higher silicon content to improve the bead appearance and increase welding ease. The weld beads are exceptionally smooth due to good wetting.

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GEN 309LMo
ER309LMo

GEN 309LMo is typically used to weld type 316 clad steels on the first pass in cladding steel as well as to weld dissimilar metals such as molybdenum-bearing stainless steels to carbon or low alloy steels.

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GEN 310
ER310

GEN 310 is used for the welding of stainless steels of similar composition in wrought or cast form. The weld deposit is fully austenitic and calls for low heat during welding. This filler metal can also be used for dissimilar welding

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GEN 312
ER312

GEN 312 is used to weld cast alloys of similar composition and is used to weld dissimilar metals and weld overlays. This alloy has very high ferrite. When welding similar cast alloys, limit welding to two or three layers only.

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GEN 316/316L
ER316/316L

GEN 316/316L has the same analysis as ER316, except that the carbon content is limited to a maximum of 0.03% in order to reduce the possibility of formation of intergranular carbide precipitation. This filler metal is primarily used for welding low carbon molybdenum-bearing austenitic alloys. This low carbon alloy is not as strong at elevated temperatures as ER316H.

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GEN 316LHS
ER316LHS

GEN 316LHS is similar to 316L, with higher silicon content for optimum ease in welding and smooth bead appearance. Higher productivity could be realized in MIG welding.

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GEN 317L
ER317L

GEN 317L is used for welding stainless steels with similar composition. Due to its higher molybdenum content, this alloy offers high resistance to pitting and crevice corrosion. Lower carbon makes the weld metal less susceptible to intergranular corrosion.

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GEN 320LR
ER320LR

GEN 320LR has a composition similar to GEN 320, except that carbon, silicon, phosphorus, and sulfur levels are kept at lower levels as well as the columbium and manganese being specified at a narrower range. The low melting residuals are limited in this alloy to reduce the possibility of microfissuring. It is for this reason that this alloy is often used for welding Type 320 stainless steels.

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GEN 330
ER330

GEN 330 is used to weld cast and wrought material of similar chemical composition. The weld metal provides excellent heat and scale resistance up to 1800°F. However, high sulfur environments may adversely affect elevated temperature performance. This being a fully austenitic alloy, heat input is necessary.

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GEN 347
ER347

GEN 347 is a columbium-stabilized stainless steel welding wire used to weld Types 321 and 347. Addition of columbium reduces the possibility of chromium carbide precipitation and consequent intergranular corrosion.

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GEN 385 (904L)
ER385

GEN 385 is used for welding materials of similar chemical composition which are used for fabrication of equipment and vessels for handling of sulfuric acid and many chloride containing media. This filler metal may also find applications for joining Type 317L material where improved corrosion resistance in specific media is needed. In order to reduce the propensity for fissuring and hot cracking, the low melting con-stituents such as carbon, silicon and phosphorus are controlled to lower levels in this alloy.

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GEN 409Nb
ER409Nb

GEN 409Nb is a ferritic stainless steel welding wire which is used to weld type 409 and 409Ti base materials. Addition of columbium leads to a preferential reaction with carbon, saving chromium from forming carbides. This improves corrosion resistance, increases strength at high temperatures, and promotes ferritic micro-structure.

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GEN 410
ER410

GEN 410 is used to weld Types 403, 405, 410, and 416. It is also used for welding overlay on carbon steels to resist corrosion, erosion, or abrasion. This material, being an air hardening type, calls for preheating of the joint to 350°F before welding.

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GEN 410NiMo
ER410NiMo

GEN 410NiMo is used primarily to weld cast and wrought material of similar chemical composi-tion. Preheating and interpass temperature of not less than 300°F are required.

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GEN 420
ER420

GEN 420 has a higher carbon content than GEN 410. This alloy is often used for surfacing applications which call for superior resistance to abrasion. It requires preheat and interpass temper-atures of not less than 400°F, followed by slow cooling. Post weld heat treatment is used to temper the weld deposit.

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GEN 430
ER430

GEN 430 is a ferritic stainless steel which offers good ductility in heat treated condition. In addition to the applications of welding similar alloys, it is also used for overlays and thermal spraying.

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GEN 630 (17-4PH)
ER630

GEN 630 is a precipitation hardening stainless steel used for welding of materials of similar chemical composition. Mechanical properties of this alloy are greatly influenced by the heat treatment.

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GEN 2209 (Duplex Grade)
ER2209

GEN 2209 is a filler material designed to weld duplex stainless steels such as UNS Number N31803. The welds are characterized by high tensile strength and improved resistance to stress corrosion cracking and pitting. The wire is lower in ferrite compared to that of base metal in order to obtain improved weldability.

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GEN 2594
(Super Duplex Grade)

GEN 2594 provides matching chemistry and mechanical property characteristics to wrought superduplex alloys such as 2507and Zeron 100, as well as to superduplex casting alloys (ASTM A890). The welding wire is overalloyed 2-3 percent in Nickel to provide the optimum ferrite/austenite ratio in the finished weld. This structure results in high tensile/yield strength and superior resistance to SCC and pitting corrosion

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Nickel Generation-4 Welding Products   SDS    

GEN 55
 

GEN 55 is used for TIG and MIG welding of cast iron. This filler metal is extensively employed to overlay cast iron rolls. It is also used to repair castings. The weld metal of GEN 55 is harder than that of GEN 99. However, machining can be accomplished by using carbide tipped tools.
A preheat and interpass temperature of 350°F (175°C) minimum is recommended during welding, without which the weld and heat affected zones could develop cracks.

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GEN 99
ERNiCl

GEN 99 is used for TIG and MIG welding of cast iron. This wire is extensively employed to repair gray iron casting. It can also be used for overlay and buildup. Dilution from the casting influences the mechanical properties of the metal. The welds are easily machinable.
A preheat and interpass temperature of 350°F (175°C) minimum is recommended during welding.

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GEN 208
ERNi-1

GEN 208 is used for TIG, MIG, and SAW welding of nickel 200 or 201. This filler metal is also employed for overlaying on steel as well as repairing cast iron castings. It can also be used for dissimilar joints between nickel or nickel alloys to stainless or ferritic steels.

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GEN 276
ERNiCrMo-4

GEN 276 is used for welding of materials of similar chemical composition (UNS Number N10276), as well as dissimilar materials of nickel base alloys, steels and stainless steels. This wire also can be used for cladding steel with nickel-chromium-molybdenum weld metal.
This alloy, due to its high molybdenum content, offers excellent resistance to stress corrosion cracking, pitting, and crevice corrosion

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GEN 413
ERCuNi

GEN 413 is used for TIG, MIG, and oxy-fuel welding of 70/30, 80/20 and 90/10 copper-nickel alloys. This filler metal can be used for MIG overlay on steel after a first layer with Nickel 208 (Filler Metal 61). Dissimilar-welding applications include joining copper-nickel alloys to Nickel 200 or nickel-copper alloys.

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GEN 418
ERNiCu-7

GEN 418 is used for TIG or MIG welding of nickel copper alloys (ASTM B127, B163, B164, and B165 UNS Number N04400). This filler metal can be used for MIG overlay on steel after a first layer with nickel 208 (Filler Metal 61). Dissimilar welding applications include joining nickel-copper alloys to Nickel 200 copper-nickel alloys.

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GEN 606
ERNiCr-3

GEN 606 is used for TIG, MIG and SAW welding of base metals such as ASTM B163, B166, B167 and B168 – alloys which have UNS Number N06600. It is one of the most used nickel alloys whose applications range from cryogenic to high temperatures. This filler metal can also be used for dissimilar welding applications between various nickel alloys and stainless or carbon steels, as well as for overlaying.

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GEN 617
ERNiCrCoMo-1

GEN 617 is used for TIG, MIG, and SAW welding of nickel-chrome-cobalt-molybdenum alloys as well as between themselves and dissimilar metals, such as stainless, carbon or low alloy steels. This filler wire also can be used to overlay welding where similar chemical composition is desired.
The weld metal provides optimum strength and oxidation resistance from 1500°F (815°C) up to 2100°F (1150°C).

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GEN 622
ERNiCrMo-10

GEN 622 is an alloy of nickel with chromium, molybdenum and tungsten as principal alloying elements. It is used to weld alloys of similar composition as well as dissimilar joints between nickel-chromium-molybdenum alloys and stainless or carbon or low alloy steels.
It can also be used for cladded overlay as well as spraying applications. GEN 622 offers excellent corrosion resistance in oxidizing as well as reducing media in a wide variety of chemical process environments. It offers an outstanding resistance to stress corrosion cracking,

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GEN 625/625HWT
ERNiCrMo-3

GEN 625 is used for TIG, MIG, and SAW welding of nickel-chrome-molybdenum alloys. This filler metal is very versatile in its applications. It can be used for welding of dissimilar joints between nickel-chrome-molybdenum alloys and stainless or carbon or low alloy steels. It can also be used for cladding as well as for spraying applications. GEN 625 with low iron (less than 0.8%) is preferred in various applications where dilution of iron must be controlled to the minimum.
The high alloy content of GEN 625 enables it to withstand highly corrosive environments. The combination of nickel and chromium provides the resistance to oxidizing conditions and the combination of nickel and molybdenum provides resistance to reducing conditions. Due to its molybdenum content, this alloy offers resistance to stress corrosion cracking, pitting, and crevice corrosion.
GEN 625HWT is engineered to work with the standard Gas Tungsten Arc process with an AC power source to preheat the welding wire before introduction to the GTA heat source. This enables automated systems with continuous wire feed to achieve a high quality, high deposition rate overlay.

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GEN 718
ERNiFeCr-2

GEN 718 is used for TIG welding alloys 718, 706, and X-750. It is mainly used for welding high-strength aircraft components, and liquid rocket components involving cryogenic temperatures. This alloy can be age hardened to higher strengths.

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GEN 825
ERNiFeCr-1

GEN 825 is used for TIG, MIG, and SAW welding of nickel-iron-chromium-molybdenum-copper alloys. This can also be used to overlay cladding where similar chemical composition is required.

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Copper Generation-4 Welding Products

Deoxidized Copper (C189) ERCu

Deoxidized Copper is a filler metal containing 98% copper and small amounts of phosphorus and silicon. The C189 alloy is easy flowing and produces weld deposits that are porosity free, electrically conductive, and copper-color matched. C189 is used to repair weld copper castings, to weld galvanized steel and deoxidized copper to mild steel where high strength joints are not required. (Specification AWS A5.7 / ASME SFA 5.7 Class ERCu)

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Silicon Bronze (C656)
ERCuSi-A

Silicon Bronze (may also be known as Everdur) is a copper based filler metal containing about 3% silicon and may have small percentages of manganese, tin, and zinc. C656 is typically used for gas-tungsten arc welding and gas-metal arc welding of copper, brass, bronze, steel, galvanized steels and also cast iron. It is also used for surfacing areas that are subjected to corrosion. (Specification AWS S5.7 / ASME SFA 5.7 Class ERCuSi-A)

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