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无缝钢管的验收标准

2022-03-02

结构用无缝钢管主要用于一般结构和机械结构。其代表材质:碳素钢、20、45号钢;合金钢Q345、20Cr、40Cr、20CrMo、30-35CrMo、42CrMo等。

输送流体用无缝钢管主要用于工程及大型设备上输送流体管道。代表材质为20、Q345等。

低中压锅炉用无缝钢管是用于制造各种结构低中压锅炉过热蒸汽管、沸水管及机车锅炉用过热蒸汽管、大烟管、小烟管和拱砖管用的优质碳素结构钢热轧和冷拔(轧)无缝钢管。代表材质为10、20号钢。

高压锅炉用无缝钢管是用于制造高压及其以上压力的水管锅炉受热面用的优质碳素钢、合金钢和不锈耐热钢无缝钢管。代表材质为20G、12Cr1MoVG、15CrMoG等。

高压化肥设备用无缝钢管是适用于工作温度为-40~400℃、工作压力为10~30Ma的化工设备和管道的优质碳素结构钢和合金钢无缝钢管。代表材质为20、16Mn、12CrMo、12Cr2Mo等。

石油裂化用无缝钢管主要用于石油冶炼厂的锅炉、热交换器及其输送流体管道。其代表材质为20、12CrMo、1Cr5Mo、1Cr19Ni11Nb等。

Seamless steel pipe for structure is mainly used for general structure and mechanical structure. Its representative materials: carbon steel, 20 and 45 steel; Alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35crmo, 42CrMo, etc.

Seamless steel pipe for conveying fluid is mainly used for conveying fluid pipeline on engineering and large equipment. The representative materials are 20, Q345, etc.

Seamless steel pipe for low and medium pressure boiler is a high-quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel pipe for manufacturing superheated steam pipe, boiling water pipe of low and medium pressure boiler and superheated steam pipe, large smoke pipe, small smoke pipe and arch brick pipe for locomotive boiler. The representative materials are 10 and 20 steel.

Seamless steel pipe for high-pressure boiler is a high-quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel pipe used to manufacture the heating surface of water tube boiler with high pressure and above. The representative materials are 20g, 12Cr1MoVG, 15CrMoG, etc.

Seamless steel pipe for high-pressure chemical fertilizer equipment is a high-quality carbon structural steel and alloy steel seamless steel pipe suitable for chemical equipment and pipelines with working temperature of - 40 ~ 400 ℃ and working pressure of 10 ~ 30mA. The representative materials are 20, 16Mn, 12CrMo, 12cr2mo, etc.

Seamless steel pipes for petroleum cracking are mainly used in boilers, heat exchangers and fluid transmission pipelines in petroleum smelters. The representative materials are 20, 12CrMo, 1Cr5Mo, 1cr19ni11nb, etc.

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