隨著國民經(jīng)濟(jì)的發(fā)展，對石油產(chǎn)品需求量與日俱增，國內(nèi)加工進(jìn)口高硫原油的數(shù)量也逐年上升，加工高硫原油對設(shè)備帶來低溫、中溫和高溫腐蝕問題日漸嚴(yán)重，特別是低溫硫化氫腐蝕屬于材料的局部破壞，更加難以檢測和預(yù)防。為此，2010年6月在中國石化集團(tuán)股份公司科技開發(fā)部的大力支持下，由中石化洛陽工程有限公司為組長單位，中國鋼研科技集團(tuán)有限公司等成員單位，并聯(lián)合管材制造廠成立了“耐濕硫化氫腐蝕換熱管工程技術(shù)開發(fā)”課題組。

 

With the development of the national economy, the demand for petroleum products grow with the passage time, the number of domestic processing of imported high sulfur crude oil also increased year by year. Processing high sulfur crude oil brings low temperature, middle temperature and high temperature equipment corrosion problem which is increasingly serious, especially the local damage of low temperature corrosion of materials is more difficult to detect and prevent. Therefore, in June 2010 in the strong support of the Ministry of science and technology development of the Sinopec group company, by Sinopec Luoyang Engineering Co. Ltd. as the head of the unit, Chinese Gangyan Technology Group Co. Ltd. and other members of the unit, and the joint pipe manufacturing factory were set up the research group "wet H2S corrosion heat pipe engineering technology development".

 

優(yōu)點(diǎn) Advantage

具有低碳、超低硫磷、微合金化的純凈無縫鋼管，通過添加稀土元素以改善材料的耐腐蝕性能；

具有優(yōu)良的綜合力學(xué)性能，尤其低溫沖擊韌性遠(yuǎn)高于一般碳素鋼材料，且硬度值低；

晶粒細(xì)小且純凈度高。根據(jù)多次實(shí)驗分析，該材料晶粒度均不粗于8級；非金屬夾雜物總和小于4.0；

具有優(yōu)良的抗硫化物應(yīng)力開裂（SSCC）能力。根據(jù)如合肥通用所、國家石油鉆采煉化設(shè)備質(zhì)量監(jiān)督檢驗中心等第三方檢驗報告，該材料開裂門檻應(yīng)力遠(yuǎn)高于標(biāo)準(zhǔn)值要求；

具有優(yōu)良的抗氫致開裂（HIC、SOHIC）能力。根據(jù)多次第三方A溶液檢驗分析，該材料裂紋長度率（CLR）、裂紋厚度率（CTR）和裂紋敏感率（CSR）皆為零；

具有優(yōu)良的耐均勻腐蝕能力。根據(jù)中國鋼研在0.5%NaCI+0.5%冰醋酸+飽和硫化氫溶液中的48h全浸腐蝕對比試驗分析，10（HSC）的腐蝕速為20號鋼的五分之一左右；

 

Pure seamless steel tubes with low carbon, ultralow phosphorus and micro alloying, which can improve the corrosion resistant of the material by adding rare earth elements；

Have good comprehensive mechanical properties, especially the low temperature impact toughness is much higher than that of ordinary carbon materials, and the hardness value is low；

Small size and high purity. According to the several experimental results, the grain size of the material is not more than level 8, and the sum of non-metallic inclusions is less than 4；

Excellent resistance to sulfide stress cracking (SSCC). According to the Hefei general institute, the national quality supervision and inspection center for oil drilling and refinery equipment and other third-party test reports, the crack threshold stress of the material should be much higher than the standard value required; Excellent hydrogen cracking resistance (HIC, SOHIC) ability. According to the several analyses of testing A solution based on the third-party, the crack length ratio (CLR), crack thickness ratio (CTR) and crack sensitivity (CSR) of the material are all zero；

Excellent uniform corrosion resistance ability. According to the contrast experimental analysis of the China Iron & Steel Research Institute Group in 0.5%NaCI+0.5% acetic acid + saturated hydrogen sulfide solution for 48h immersion corrosion the corrosion rate of 10(HSC) is only about one-fifth of 20.