Usages: Water, gas, air and steam, black steel tubes and pipes are utilized for gas distribution inside and outside the house and for hot water circulation in boiler systems. It is also used for line pipes in oil and petroleum industries, for water wells and for water, gas and sewage purposes. It is not used for potable water or for drain waste or vent lines.
Standard: BS 1387-1985, ASTM A53, ASTM A513, ASTM A252-98, JIS G3444-2004 STK400/500, JIS G3452-2004, EN 10219, EN 10255-1996, DIN 2440
Material: Q195, Q235, Q275, Q345
Surface treatment: Galvanized, oil coating, lacquering
Production standard: ASTM A53, BS1387, EN10255, EN10240, EN10220, EN10219, En39