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WELDING MATERIAL FOR FERRITE HEAT-RESISTANT STEEL, WELDING JOINT FOR FERRITE HEAT-RESISTANT STEEL, AND METHOD FOR PRODUCING WELDING JOINT FOR FERRITE HEAT-RESISTANT STEEL
WELDING MATERIAL FOR FERRITE HEAT-RESISTANT STEEL, WELDING JOINT FOR FERRITE HEAT-RESISTANT STEEL, AND METHOD FOR PRODUCING WELDING JOINT FOR FERRITE HEAT-RESISTANT STEEL
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机译:铁素体耐热钢的焊接材料,铁素体耐热钢的焊接接头以及铁素体耐热钢的焊接接头的制造方法
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摘要
An objective of the present invention is to provide a welding material for ferritic heat-resistant steel, a welded joint for ferritic heat-resistant steel, and a method for producing a welded joint for ferritic heat-resistant steel that are capable of forming a weld metal having a high creep strength and a high toughness in welding a ferritic heat-resistant steel that contains B. A welding material for ferritic heat-resistant steel according to the present embodiment has a chemical composition containing, in mass %, C: 0.06 to 0.10%, Si: 0.1 to 0.4%, Mn: 0.3 to 0.7%, Co: 2.6 to 3.4%, Ni: 0.01 to 1.10%, Cr: 8.5 to 9.5%, W: 2.5 to 3.5%, Nb: 0.02 to 0.08%, V: 0.1 to 0.3%, Ta: 0.02 to 0.08%, B: 0.007 to 0.015%, and N: 0.005 to 0.020%, with the balance being Fe and impurities, and satisfying Formula (1):
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机译:本发明的目的是提供一种能够形成焊缝的铁素体耐热钢用焊接材料,铁素体耐热钢用焊接接头以及制造方法。在焊接含有B的铁素体耐热钢时,具有高蠕变强度和高韧性的金属。本实施方式的铁素体耐热钢用焊接材料的化学组成以质量%计为C:0.06〜0.06。 0.10%,Si:0.1至0.4%,Mn:0.3至0.7%,Co:2.6至3.4%,Ni:0.01至1.10%,Cr:8.5至9.5%,W:2.5至3.5%,Nb:0.02至0.08 %,V:0.1〜0.3%,Ta:0.02〜0.08%,B:0.007〜0.015%,N:0.005〜0.020%,余量为Fe和杂质,满足式(1): “ matha01”> <![CDATA [ 0.5 mn> ≤ mo> Cr mi> + mo> 6 mn> Si mi> + mo> 1.5 mn> W mi> + mo> 11 mn> V mi> + mo> 5 mn> Nb mi> + mo> 10 mn > B mi> - mo> 40 mn> C mi> - mo > 30 mn> N mi> − mo> 4 mn> Ni mi> - mo> 2 mn> Co mi> − mo> 2 mn> Mn mi> ≤ mo> 10.0 mn>]]> MathText> <图像文件=“ IMGA0001.GIF” he =“ 12” imgContent =“ math” imgFormat =“ GIF” wi =“ 143” /> 数学>
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