Classification Of Welding Technology

Classification Of Welding Technology

Directly welded pipes: the use of small size model can avoid stress corrosion, hot cracks and deformation, and the welding current is 20% lower than that of high carbon steel. In order to ensure the ignition of the electric arc, the DC reverse connection is adopted. The short arc welding strategy shall slowly stop the isolation, add charging pits, and finally weld and contact the surface layer of the material.

Arc welding: it is used for arc welding of straight seam steel pipes. It has good maintainability, good welding high temperature performance, good physical properties, aluminum alloy parts are not easy to burn, high connection index, good welding formability, no slag shell, and smooth surface. At present, the manual argon tungsten arc welding market is mainly used for argon arc welding of 0.5~3mm stainless steel plates.

The composition of the electrode is generally the same as that of the welding part. The industrial production of pure argon is usually used to maintain the vapor. In order to prevent lateral shaking during welding, the speed must be accelerated as much as possible. Argon arc welding can be used for stainless steel plates with a thickness of more than 3mm. The advantages of MIG arc welding are high output rate, small welding heat hazard zone, small welding deformation, good corrosion resistance, and convenient for the actual operation of automation technology.

Gas welding: due to its convenient gas welding and strong cooperation ability, it can be used to weld various indoor space parts. For some direct welded steel pipe components, such as thin plate structure, thin-wall pipe, etc., sometimes gas welding can also be applied under the condition of non corrosion resistance.
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Submerged arc welding: submerged arc welding is applicable to medium level thin, left and right straight seam welded steel pipe plates. Submerged arc welding has high output rate and high cost performance, but it is easy to cause segregation of aluminum alloy elements and residues.
Hand welding: hand welding is a very common and convenient welding process. The arc length is adjusted by everyone, which depends on the gap between the metal electrode and the steel. In addition, when used as an arc carrier, the metal electrode is the raw material for welding.

Stainless Steel Pipe/Tube Products:

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MTSCO – Austenitic / Duplex steel / Nickel alloy

– To be the most reliable industrial metal service provider in the world

Who MTSCO is?

MTSCO established in 2006, during many years development, nowbecomes a large and professional industrial piping system provider, serving customers from more than 100 countries and regions.

What products can we provide?

What materials can we provide?

Austenitic

304/L/H/N, 316/L/H/N/Ti, 321/H, 309/H, 310S, 347/H, 317/L904L

Duplex steel

31803, 32205, 32750, 32760

Nickel alloy

Alloy B/ N10001, Alloy B2/N10665, Alloy B3/N10675, Alloy C4/N06455, Alloy C22/N06022, Alloy C276/N10276, Alloy C2000/N06200, Alloy G35/N06035, Alloy G30/N06030,
Alloy S/N06635, Alloy N/N10003, Alloy X/N06002, Alloy 188/R30188, Alloy 230/N06230,
Alloy 556/R30556, Alloy 600/ N06600, Alloy 601/N06601, Alloy 617/N06617,
Alloy 625/N06625, Alloy 718/N07718, Alloy X750/N07750, Alloy 800/N08800,
Alloy 800H/N08810, Alloy 800HT/N08811, Alloy 825/N08825, Alloy 925/N09925,
Alloy 926/N08926, Alloy 400/ N04400, Alloy K500/N05500
Precipitation-hardening Steels: 254SMO/S31254, 17-4PH, 17-7PH, 15-7PH
Nickel: N4/UNS N02201, N6/UNS N02200

How can MTSCO service customers?

MTSCO’s ISO9001 Quality System is issued by TUV. Our full and professional inspection reports contain two parts, one is self-inspection of the requirements beyond ISO9001, which is 100% inspected by our own QC; another is 100% inspected by professional QC teams.

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