... sell/offer:DIN17165 :17 Mn 4, steel for boilers and pressure vessels 2.other grades: DIN 17135 : DIN17165 : HI , HII, ... 17 Mn 4, 19 Mn 3.Application: Application of Pressure vessel &Boiler steel plate: widely used in petroleum, chemical, ... heat exchanger, separator, spherical tanks, oil cans,gas cans, nuclear reactor pressure vessel, boiler steam package, liquefied petroleum gas cylinders, high ...