Hot rolled mechanical properties of nm550

Our company will set up a full-time service engineer for the project, who is responsible for the interface and coordination of technical support and after-sales service of the mechanical properties of NM550 project. In response process of customer service center, in case of technical support and after-sales service demand, the user shall contact the full-time engineer of mechanical properties of NM550 customer service center, and the technical personnel will give corresponding answers and on-site treatment according to the needs of users.

The JIS G3106 mechanical properties of NM550 specification is a hot-rolled carbon steel plate for welded structures. The mechanical properties of NM550 steel grades include: SM400A/B/C, SM490A/B/C, SM490YA/YB, SM520B/C, SM570.

Tempering includes high temperature tempering, medium temperature tempering and low temperature tempering. Tempering means to reheat the mechanical properties of NM550 quenched steel to a certain temperature and then cool it in a certain way. Tempering can reduce or eliminate the internal stress produced by quenching, reduce the hardness and strength, and improve the ductility or toughness of steel. After mechanical properties of NM550 quenching, the workpiece should be tempered in time, and the required mechanical properties can be obtained through the combination of quenching and tempering.

The difference of chemical composition between mechanical properties of NM550, Q420D steel and Q460D steel: Chemical composition of Q420D steel: C ≤ 0.20, Si ≤ 0.50, Mn ≤ 1.70, P ≤ 0.030, S ≤ 0.025, Nb ≤ 0.07, V ≤ 0.20, Ti ≤ 0.20, Cr ≤ 0.30, Ni ≤ 0.80, Cu ≤ 0.30, N ≤ 0.015, Mo ≤ 0.20, Al ≥ 0.015. Chemical composition of Q460D steel: C ≤ 0.20, Si ≤ 0.60, Mn ≤ 1.80, P ≤ 0.030, S ≤ 0.025, Nb ≤ 0.11, V ≤ 0.20, Ti ≤ 0.20, Cr ≤ 0.30, Ni ≤ 0.80, Cu ≤ 0.55, N ≤ 0.015, Mo ≤ 0.20, B ≤ 0.004, Al ≥ 0.015. The difference of mechanical properties between mechanical properties of NM550, Q420D steel and Q460D steel: The mechanical properties of Q420D steel: yield strength ≥ 420 MPa, tensile strength 500-680 MPa. The mechanical properties of Q460D steel: yield strength ≥ 460 MPa, tensile strength 500-720 MPa.

The company attaches great importance to logistics services, sets up our own transport truck fleet, improves customer response capacity through the improvement of logistics capacity, and further reduces costs. Customers ordering mechanical properties of NM550 steel from our company can not only enjoy the service of fast delivery, but also enjoy lower transportation costs. Fast, accurate, simple and efficient has always been our principle.

our company is a professional mechanical properties of NM550 API 5CT N80 casing pipe steel exporter and a steel Stockist in china. We keep more than 1000 tons API 5CT N80 casing pipe steel in stock every month. If you want to get the API 5CT N80 casing pipe steel price, please do not hesitate to contact us. Any need in API 5CT N80 casing pipe mechanical properties of NM550 Chemical Composition and Mechanical Properties, please feel free to contact us by email or calling to us.