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JIS G 4904:2017
New product
JIS G 4904:2017 Seamless nickel-chromium-iron alloy heat exchanger tubes (Foreign Standard)
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/2017
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Full Description
JIS G 4904:2017 specifies seamless nickel-chromium-iron alloy tubes (hereafter referred to as tubes) to be used, for example for heat exchangers or condensers in chemical and petroleum industries, and steam generators in nuclear industry, where the tube is designed for exchanging heat between inside and outside of its body. However, this Standard is not applicable to steel tubes for fired heater.The supplementary quality requirements and U-bend tubes, which can be specified by the purchaser upon the agreement with the manufacturer, are specified in Annex A and Annex B, respectively.