EN-10216-4-12Ni14-Steel-Pipe-Specification

Carbon Steel Pipe and Alloy Steel Tube Manufacturers and SuppliersEN 10216-4 12Ni14 Steel Pipe SpecificationEN 10216-4 12Ni14 is a seamless alloy steel tube with low-temperature properties containing3.25-3.75 nickel and a minimum yield strength of 345 MPa at room temperature,for use inlow-temperature applications down to-100 C.The steel number is 1.5637.Chemical CompositionChemical composition (cast analysis).in%by massGradeSiMnPNiCu12Ni140.15 max0.15-0.350.30-0.800.025max0.005ma×3.25-3.750.30ma0.05 maxMechanical Properties■Tensile PropertiesTensile propertiesGradeUpper yield strength RenElongation ATensile strength Rmor proof strength Reo2LongitudinalTransverse12Ni14345 MPa min440-620MPa22%min20%minImpact PropertiesAverage impact energy KVaGradeWall thickness TOrientation of test pieces withrespect to tubeat a temperature of100℃.90℃60℃.50℃.40℃-20℃+20℃Longitudinal45 J min55Jmin60J min65Jmin525 mmTransverse27J min30Jmin35J min35Jmin40J min45 J min45 J min12N14Longitudinal40Jmin45Jmin50Jmin50Jmin55Jmin65Jmin>25-≤40mmTransverse27J min30Jmin30Jmin35Jmin40 J minDelivery ConditionQuenching and tomperingGradeHeat treatmentNormalizing temperatureTempering temperatureHardening temperatureCooling mediumTempering temperature+NT830-880℃580.640℃12N14+QT820880℃Water or oil580.660℃QT:Quenching and Tempering:NT:Normalising and Tempering:WhatsApp:008613463768992 Email:sales@botopsteelpipes.com Website:www.botopsteelpipes.com