In terms of service, our service is a "one-stop" way of working. We have our own A514 Gr B quenched and tempered steel processing plant and pretreatment plant, pretreatment of ship steel (shot blasting, derusting, painting). Technical parameters of steel plate and profile steel surface pretreatment production line. We can also let customers enjoy our other pretreatment services, such as A514 Gr B quenched and tempered steel cutting, welding, drilling, galvanizing, etc., at the lowest cost.
A514 Gr B quenched and tempered steel, Q345 angle steel has two kinds: unequal angle steel (two sides are not the same size) and equal angle steel (two sides are the same size). A514 Gr B quenched and tempered steel, Q345 angle steel is widely used for mechanical processing, building structure, steel structure, etc.. In addition, Q345 angle steel can withstand - 40℃ low temperature at least and can be used in cold areas. The weight calculation formula of Q345 angle steel: 0.00785 * (side width + side width - side thickness) * side thickness, the value obtained is the weight per meter, and then multiplied by the length to calculate the weight of a piece.
A514 Gr B quenched and tempered steel, low alloy high strength steel has good weldability. Welding is the most common method to construct engineering structure, so the steel used in engineering structure requires good welding performance. Low alloy high strength steel has low carbon content, low alloy element content and good plasticity, so it is not easy to produce quenching structure and crack in the weld area, and the addition of Ti, Nb, V can also inhibit the grain growth in the weld area. Therefore, most of the low alloy high strength steels have excellent welding performance and no heat treatment is required after welding.
No. 45 steel is commonly used medium carbon quenched and tempered structural steel. The cold plasticity of No. 45 steel is generally better than A514 Gr B quenched and tempered steel. Annealing and normalizing are better than quenching and tempering. No. 45 steel has higher strength and better machinability than Q345 steel. After proper heat treatment, it can obtain certain toughness, plasticity and wear resistance. No. 45 steel A514 Gr B quenched and tempered steel is suitable for hydrogen welding and argon arc welding, but not suitable for gas welding. Preheating is required before welding, and stress relief annealing shall be conducted after welding.
Seamless pipes material and specificationAPI 5L Gr.B, A514 Gr B quenched and tempered steel A106 Gr.B, ASTM A53 Gr.B, ST37.0, ST35.8, St37.2, St35.4/8,St42,St45,St52,St52.4, STP G38, STP G42, STS42STPT49STS49Sizes(mm): 0.12-2.0mm*600-1250mmWall Thickness(mm):1.2mm-40mmCertificates: API5L ISO 9001:2008 TUV SGS BV etcSurface: Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE
The company has passed the ISO9001: 2008 quality system certification, strictly implemented the ISO9001 quality management system. Besides, we have continuously improved the after-sales service network to make every effort to provide more convenient, accurate and faster services for all customers. We will supervise the production, control the quality in the factory, Inspect the cargo before shipment, Issue the test report to sales department. From the steel prodcution to steel delivery, we always focus the whole process.
