What kind of material is the drill pipe and what kind of electrode?
Oil drilling pipe performs API 5DP standardCommonly used steel grade S135, G105, X95, E75. The usual specifications are 60.373, 88.9, 101.6, 114.3127 and so onIt is suggested to use Baosteel brand petroleum drill pipe
Oil drill pipe is a high carbon steel material, using WEWELDING 600 welding.Selection of electrodes of 3.2 mm diameter welding current, in 100-120A, the cold welding welding process can be.Application of WEWELDING600 special alloy steel welding rodSuitable for welding of tool and mould, high-speed tool steel, hot work tool steel, steel, cast steel, T-1 steel, Nai Zhengang, vanadium steel, spring steel, martensitic stainless steel, austenitic stainless steel, ferritic stainless steel, and the unknown as well as between the various different types of steel welding etc.. Such as high pressure valves, broken bolt clearance, shaft transformation, etc., the effect is very satisfactory.Technical parameters of WEWELDING600 special alloy steel welding rodTensile strength: 125000 psi (862MPa)Yield strength: 90000 psi (620MPa)Elongation: 35%Hardness after welding: HRC23 (work hardening up to HRC47)Power supply: AC and DC dual use, DC DC reverse connectionProcess parameters of WEWELDING600 special alloy steel electrodeDiameter (mm) Phi 2.5 Phi 3.2 Phi 4Current (Amperes) 40-80, 65-120, 90-150Packing weight (LBS) 222Applicable technology of WEWELDING600 special alloy steel welding rod1, WEWELDING 600 alloy steel electrode (referred to as WE600 or Wiodin 600 electrode) has very favorable thermal expansion and cold shrinkage, can make cracks and distortion minimum.2, it is an ideal choice to lower the weld seam when welding the metal which is sensitive to the crack.3, with thick parts, forming a 90 degree V groove.4, welding high carbon steel before preheating 200 degrees; welding spring steel to control the welding temperature, in case the spring softening.5. Maintain a short arc length and use a narrow bead to prevent overheating.6, before removing slag, let the welding site cooling.
