Wire, bar, rod made of X3NiCrCuMoTi27-30
|Grade||analogue||W. Nr.||Aisi Uns||En||Order|
|06ХН28МДТ||EI943||1.4539||904L||X3NiCrCuMoTi27-23||Buy from stock, view availability|
Welding electrodes are made of wire. They are used for joint of nozzle parts, pipe joints, repair of welding composition of nuclear reactors, convective coils. It is used in welding of tanks that operate in solutions of phosphorus, 55% H2 SO4, spirit of verdigris and similar aggressive environments up to a temperature of 80 °C. Manufacture of chemical welded devices: heat-exchangers, reactors, pipelines, equipment for mineral fertilizer synthesis. Making of installations for production of ethylene, ammonia, carbon disulfide and other chemical elements.
X3NiCrCuMoTi27−23 is smelted in electric-arc furnaces. This grade is classified as a stainless corrosion resistant simple heat-resistant steel. It relates to a group of steels on iron-nickel basis of austenitic class. It complies with severe requirements of GOST. This alloy can be designated as EI943. It can be substituted by X3NiCrCuMoTi27−30.
X3NiCrCuMoTi27−23 (GOST 18 143−72)
|26 — 29||22 — 25||<0,8||2,5 — 3||<0,8||<0,06||<0,035||0,5 — 0,9||36,885 — 46,5||<0,02|
Available mill-products of X3NiCrCuMoTi27−30: pipe, rod, wire, sheet, strip. Starting temperature of plastic deformation is 1170 °C and finishing is about 900 °C.
Physical properties at t° of 20°С:
— Specific weight is 7,96 g/cm3
— Heat conductivity is 13,4 V/(m К).
— Unit-area resistance is 0,75 Ohm-mm2/m;
— Hardness is 200 HB MPa -1
— Magnetic permeability is 1,255 micro-tesla/m in H field of 500
The following types of welding are possible: manual, automatic with flux, under gas shielding. For manual electric-arc welding, there are used electrodes OK 61.30, ОК 67.15 with wire cores such as SW-03HN25MDG, SW-03HN25MDGB. Additive material of such type is also used at automatic argon-arc and electric-arc welding. As a means of flux, there is recommended grade AH-18.
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