ASTM A179
二零一八年十二月十四日
ASTM A179 / ASME SA179，ASTM A192 / ASME SA192覆盖最小壁厚，无缝冷拔低碳钢管热交换器，冷凝器，过热器和锅炉和类似的热交换装置。The tubes are frequently ordered as follows: Chemical compositions C Si Mn P S 0.06%-0.18% ≤0.25% 0.27%-0.63% ≤0.035% ≤0.035% Mechanical properties Yield strength Tensile strength ≥180 MPa ≥325 MPa Outside diameter (OD) 1/2” – 7” (12.7mm-177.8mm) Wall thickness (WT) BWG 16-BWG 0 (0.065”-0.34”, 1.65mm-8.64mm) Pipe length Specific or random Pipe surface Coated with anti-corrosive varnish / oil Pipe end Square cut and with plastic protector (cap) at […]