氢 Piping 系统 and Pipeline 测试 to ASME B31.12

im体育APP performs testing according to ASME B31.12, the most comprehensive standard currently available for designing steel piping systems that carry 气体eous hydrogen.

With the growing demand for hydrogen as a source of energy, the need for setting up new transportation infrastructure is rising across the globe. 同时, existing infrastructure for carrying natural 气体 is examined for possible upgrades to transport hydrogen blends. The aim is to determine the temperature, 压力, 体积, and flow speed that allow pipelines to operate safely.

The prime consideration for hydrogen pipeline design is 氢脆(HE)  as free hydrogen atoms permeating into metallic materials can decrease the material’s ductility and toughness, subsequently making it susceptible to crack growth and fatigue.

ASME B31的范围.12个测试

Transporting pressurized hydrogen through steel pipelines has been common practice for decades in various industries such as chemical processing. 

A preliminary analysis has revealed gaps between the current piping and pipeline codes and standards and their applicability to hydrogen infrastructure projects. In response, a dedicated Project Team at ASME was established to develop a comprehensive B31.12 Code specifically for hydrogen piping and pipelines. The code comprises several sections, including General Requirements and Industrial Piping, 以及 管道, which encompass distribution systems. These sections are tailored to address the unique considerations associated with 氢系统.

值得注意的是，代码合并了 断裂力学试验 and material performance factors that account for the potential detrimental impact of hydrogen 气体 on the mechanical properties of carbon and low-alloy steels operating within the hydrogen embrittlement range. ASME B31.12 mandates that the pipe and its associated weld material must demonstrate sufficient resistance to fracture when exposed to hydrogen 气体. The qualification process involves following the test method specified in ASME BPVC Sec VIII: Division 3- Article KD-1040, 这又指的是ASTM E1681. This standard recommends the use of a constant displacement fracture mechanics test method, which is a cost-effective and relatively straightforward option for qualifying hydrogen transportation pipelines. As a result, it has become a preferred choice in the industry for qualification testing purposes.

另外, the Code introduces rules for the conversion or retrofitting of existing pipeline and distribution systems, allowing for the transition from natural 气体 or petroleum to hydrogen service.

im体育APP优势

im体育APP’s team of experts possesses extensive knowledge of the code content and demonstrated expertise in the field. 以他们深刻的理解, they are adept at navigating through the requirements and conducting thorough assessments of 氢 管道 according to the ASME B31.12, ASME BPVC Sec VIII: Division 3- Article KD-1040, and ASTM E1681 standards. 

For more information about our pipeline testing services or to speak with an expert, im体育APP 今天.