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日本川崎钢铁公司以开发奥氏体无磁不锈钢为目的,研究了成分对奥氏体相的加工稳定性、TIG焊接部位δ铁素体的生成及焊接缺陷的影响。结果得出了19Cr-13Ni-1.0Mn-0.07C是无磁不锈钢最佳组成的结论。典型成分(重量％)为:0.07C,0.05Si,0.90Mn,0.025P,0.002S,19.5Cr,12.5Ni,0.50Cu,<0.05Mo,0.05N。与SUS316相比,其奥氏体加工稳定性极高,即使进行60％的强烈加工,也能保持充分的无磁性。因而也能提高板面硬度,确保耐磨性。这种无磁不锈钢的焊接性良好,焊接部位不生成δ铁素体,焊接状态的导磁率与母
Japan Kawasaki Iron and Steel Company to develop austenitic non-magnetic stainless steel for the purpose of the composition of the austenite phase of the processing stability, δ-ferrite TIG welding site and welding defects. The results obtained 19Cr-13Ni-1.0Mn-0.07C is the best composition of non-magnetic stainless steel conclusion. Typical compositions (wt%) are: 0.07C, 0.05Si, 0.90Mn, 0.025P, 0.002S, 19.5Cr, 12.5Ni, 0.50Cu, <0.05Mo, 0.05N. Compared with SUS316, its austenite processing stability is very high, even if 60% of the intense processing, but also to maintain sufficient non-magnetic. Therefore, it can also improve the board surface hardness and ensure wear resistance. This non-magnetic stainless steel weldability is good, the weld does not generate δ ferrite, the permeability of the welding state and the mother