API 2H Grade 42 steel

API 2H Grade 42 steel is a carbon manganese steel plate for offshore structures. This kind of steel is mainly used in welded construction of offshore structures, in selected critical portions which must resist impact, plastic fatigue loading, and lamellar tearing. These steels are intended for fabrication primarily by cold forming and welding as per API Spec 2B. The welding procedure is of fundamental importance and it is presumed that procedures will be suitable for the steels and their intended service.

API 2H Grade 42 carbon manganese steel Chemical Composition   

API 2H Grade 42 carbon manganese steel Mechanical Property      

Grade	Mechanical Property
Grade 42	Yield Strength mm Min(Mpa)	Tensile Strength mm Min(Mpa)	Elongation Min,%
	289	427-565	≥18

API 2H Grade 42 Steel Properties:

API Spec 2H Grade 42 carbon mangenese steel exhibits good impact toughness and resistance to plastic fatigue loading and lamellar tearing thus it is intended primarily for the use in critical and crucial areas or sections of offshore structure projects such as tubular joints, stiffened plate construction and other intersections where portions of the steel plates will be subjected to tension in the through-thickness (Z) direction. API 2H Grade 42 is also suitable as a piling material for bridge construction due to its fracture, vibration and torque resistance. API 2H Grade 42 is therefore not only an effective material for floating and rigid offshore platform construction, it also has other uses as a high yield and highly specified structural grade material.

API 2H Grade 42 Steel Application

API Spec 2H Gr.42 steel plate is an intermediate-strength, normalized, structural-steel plate used in the welded construction of offshore structures in critical portions. API Spec 2H Grade 42 steel used in these applications must exhibit higher impact toughness and resistance to fatigue loading. Because of its stringent restrictions, API Spec 2H Gr.42 steel is also used in many other applications such as Base rings / Cylinders for Crane production, Piling for severe application on Bridge Construction and for “Fracture Critical” applications in areas where resistance to vibration and torque are necessary.