The No. WB36 steel grades in Germany, WB36 steel is in the C-Mn steel adding Ni, Cu, Mo and Nb micro-alloyed steel. WB36 steel of chemical composition and characteristics of welding performance analysis of the welding process programs and carried out welding procedure qualification. In selecting suitable welding material, based on pre-heating before soldering 150 ℃ ~ 200 ℃, after soldering 200 ℃ ~ 250 ℃ after the heat of the emergency and the use of 580 ℃ ~ 620 ℃ of the soldering After the heat treatment system. High quality steel High-quanlity steel, alloyed Material Number Material number: 1.6368 Symbol Symbol: 15NiCuMoNb5 SEW 028 Business name: 15 NiCuMoNb 5, WB 36 D-510 Mannesmannrren-Werke AG Fe In addition to other ingredients: Element content of at least the largest Al 0.015% ~ C 0% 0.17% Cr 0% 0.30% Cu 0.5% 0.8% Mn 0.8% 1.2% Mo 0.25% 0.5% N 0% 0.02% Nb 0.015% 0.045% Ni 1% 1.3% P 0% 0.03% S 0% 0.025% Si 0.25% 0.5% 168-426 * 8-70 import
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