ASTM A179 U bend tubes for heat exchangers applied mostly in oil and gas plants, chemical and petrochemical plantsDownload PDF A179 U Bend Dimension capability Tube OD.: 12.7mm-38.1mm. Tube Thickness: 1.25mm-6mm. Bending Radius: Min.1.5 x OD/ Max. 1250mm. U tube Straight “leg” ...
A179是标准号,A— — 黑色金属,179是顺序号 ASTM A179 《换热器及冷凝器用无缝冷拔低碳钢管子》 A179标准对钢管的表面光洁度也是有要求的,A179钢管 对成品的硬度也是有要求的,一般国内的一些小钢管厂,热处理工艺安排不当,经常造成钢管的质量不合格。