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发明授权
CN101397635B 临氢设备用12Cr2Mo1R厚钢板及其制造方法 有权

临氢设备用12Cr2Mo1R厚钢板及其制造方法
摘要：
临氢设备用12Cr2Mo1R厚钢板及其制造方法，其包括如下步骤：a)成分质量百分比为：C：0.10～0.15、Si：≤0.10、Mn：0.40～0.60、P≤0.010、S≤0.003、Cr：2.0～2.5、Mo：0.90～1.10、Cu：0.10～0.20、Ni：0.10～0.20、Sn≤0.003、Sb≤0.003、As≤0.003、Ca：0.001～0.005、余Fe；b)采用转炉冶炼，并铸造成铸锭；c)铸锭初轧开坯、轧制；d)轧后正火处理，温度：900～950℃；e)用压力淬火机以芯部≥0.5℃/s加速冷却，全板厚范围内得到贝氏体组织；f)回火处理，回火温度为700～760℃。本发明利用压力淬火机，通过正火+加速冷却+回火工艺，保证成品钢板显微组织为回火贝氏体，获得优异的力学性能和优良的焊接性。
摘要（英）：

The invention discloses a 12Cr2Mo1R thick steel plate used in equipment contacting hydrogen and a production method thereof which includes the following steps: a) The mass percentage of constituents is as follows: C: 0.10 to 0.15, Si: less than or equal to 0.10, Mn: 0.40 to 0.60, P: less than or equal to 0.010, S: less than or equal to 0.003, Cr: 2.0 to 2.5, Mo: 0.90 to 1.10, Cu: 0.10 to 0.20, Ni: 0.10 to 0.20, Sn is less than or equal to 0.003, Sb is less than or equal to 0.003, As is less than or equal to 0.003, Ca: 0.001 to 0.005, and Fe as the rest; b) The invention adopts converter smelting, and are casted into ingots; c) The ingots are bloomed, cogged and rolled; d) After being rolled, the ingots are normalized, and the temperature is 900 to 950 DEG C; e) Being accelerating-cooled by a pressure quenching machine based on the core part (more than or equal to 0.5 DEG C/s), bainite structures are obtained in whole thickness range; and f) Tempering treatment is carried out at 700 to760 DEG C. The invention uses the pressure quenching machine, ensures that the microstructure of the finished product plate is tempering bainite by normalizing, accelerating cooling and tempering treatment, and obtains excellent mechanical property and weldability.

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