推薦產(chǎn)品
3-(4-chlorophenyl)-4-phenyl-4,5-dihydro-1H-pyrazole 2-(chloromethyl)-3-methylpyridinehydrochloride 1-(2-bromo-4-methylphenyl)ethanone 3-chloroisoquinoline-4-carbonitrile 5,8-dichloropyrido[3,2-d]pyridazine 2-bromomalononitrile 2-(4-(bromomethyl)phenyl)benzo[d]thiazole 1-(bromomethyl)-3-methoxy-2-nitrobenzene 6-bromo-1H-[1,2,3]triazolo[4,5-b]pyridine 4-iodo-2-((trimethylsilyloxy)methyl)thiazole 6-iodoimidazo[1,2-a]pyridine-3-carbonitrile 2-(4-chlorophenyl)-2-morpholinoacetonitrile 4-chloro-7H-pyrrolo[2,3-d]pyrimidine 4-chloroisothiazole 5-bromo-6-chloro-1H-indole 7-chloro-3H-imidazo[4,5-b]pyridine ethyl3-(4-formylphenyl)propanoate 2,3-dibromobenzaldehyde 1-(5H-chromeno[2,3-b]pyridin-7-yl)ethanone 5H-chromeno[2,3-b]pyridin-5-one 3-chloroisoquinoline-4-carbaldehyde (E)-2-(3-oxoprop-1-enyl)benzaldehyde methyl4-formyl-3-nitrobenzoate 5,6-dimethoxy-2,2-dimethyl-2,3-dihydro-1H-inden-1-one 1-methylbicyclo[4.1.0]heptan-3-one 3-nitro-4-(trifluoromethoxy)benzaldehyde 2-hydroxyquinoline-6-carbaldehyde 2-nitro-3-(trifluoromethyl)benzaldehyde 1-(2-fluoro-4-methoxyphenyl)propan-2-one tert-butyl3-fluoro-4-oxopiperidine-1-carboxylate tert-butyl3-oxopropylcarbamate 2,2-dimethylcyclohexanone 9H-carbazole-3-carbaldehyde N,N-dimethyl-2-oxoacetamide 2-methylpent-4-yn-2-ol 3-tert-butyl-4-hydroxybenzonitrile 4-bromo-2-tert-butylphenol 1,3-dibutoxypropan-2-ol methyl4-hydroxyquinoline-6-carboxylate methyl3-cyano-4-hydroxybenzoate 4-chloro-6-methoxyquinolin-7-ol 3,4-dihydro-2H-benzo[b][1,4]oxazin-7-ol 2-(2-aminothiazol-5-yl)ethanolhydrochloride (R)-ethyl2-chloropropanoate (S)-4-amino-5-(4,4-dimethylcyclohexylamino)-5-oxopentanoicacid (1s,4s)-4-hydroxycyclohexanecarboxylicacid (S)-2-(tetrahydrofuran-3-yloxy)aceticacid (1S,4R)-1-methyl-4-(prop-1-en-2-yl)cyclohex-2-enol (R)-4-(hydroxymethyl)oxazolidin-2-one (S)-4-(hydroxymethyl)oxazolidin-2-one 化工資訊 英國(guó)鋼鐵協(xié)會(huì)日前發(fā)出安全警告，稱(chēng)從中國(guó)進(jìn)口的中厚板和型鋼不符合歐洲標(biāo)準(zhǔn)，據(jù)稱(chēng)從中國(guó)進(jìn)口的中厚板正在歐洲鋼鐵聯(lián)盟監(jiān)管下接受調(diào)查。
英國(guó)鋼鐵協(xié)會(huì)注意到，這些中厚板和型鋼的硼含量大于0.0008%，或鉻含量大于0.3%或銅大于0.55%，均不符合歐洲標(biāo)準(zhǔn)。早在去年年底前，英國(guó)鋼鐵公司就指出，鋼材中加入較多硼可導(dǎo)致焊接部位開(kāi)裂，引起了歐洲鋼鐵聯(lián)盟的高度關(guān)注，英國(guó)政府也表示將加強(qiáng)對(duì)進(jìn)口檢驗(yàn)的審查。英國(guó)鋼鐵公司稱(chēng)，硼含量高可能損害鋼性能，使焊接的熱影響區(qū)(HAZ)產(chǎn)生裂紋，同樣，鉻含量超過(guò)0.3%也有類(lèi)似的情況，大大增加焊接熱影響區(qū)的裂紋產(chǎn)生，進(jìn)口鋼材的銅含量超過(guò)0.4%也可能導(dǎo)致焊接斷裂。英國(guó)鋼鐵協(xié)會(huì)建議用戶在使用或焊接前認(rèn)真檢查從中國(guó)進(jìn)口鋼材的合金含量，并對(duì)增加合金含量影響焊接性能表示擔(dān)憂。
