Our company attaches great importance to technical support and after-sales service, and has established a customer service center to provide unified technical support and service for LR AH40 shipbuilding structural plate various engineering projects. Customer service center has a strong technical force of technical service team, composed of a customer service center manager, several LR AH40 shipbuilding structural plate after-sales service personnel, responsible for unified acceptance and processing of local after-sales service needs.
At present, in the iron and steel manufacturing industry, there are more and more manufacturers of LR AH40 shipbuilding structural plate, automobile steel plate, so it is very important for us to find a high-quality automobile steel plate manufacturer for cooperation. In the selection of LR AH40 shipbuilding structural plate, automobile steel plate manufacturers and products, it is better to find several companies to compare, and to summarize and select a more suitable automobile steel plate manufacturer to cooperate. We sorted out a few ways to select high-quality LR AH40 shipbuilding structural plate, automobile steel plate manufacturers, and hope to help you to purchase!
40Cr grade under GB/T 3077-2015 standard is a alloy steel bar material. LR AH40 shipbuilding structural plate, 40Cr alloy chemical composition (C: 0.37 ~ 0.44, Si: 0.17 ~ 0.37, Mn: 0.50 ~ 0.80, Cr: 0.80 ~ 1.10, Ni: ≤0.30, P: ≤0.030, S: ≤0.030, Cu: ≤0.30, Mo: ≤0.10). Heat treatment: First quenching heating temperature (℃): 850; coolant: oil; Temperature heating temperature (℃): 520. 40Cr steel tensile strength (σb / MPa): ≥980. Yield point (σs / MPa): ≥785
40Cr steel plate is one of the most widely used steel in machinery manufacturing. After tempering, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of steel LR AH40 shipbuilding structural plate is good. It can be hardened to Ф28 ～ 60mm during water quenching and Ф15～40mm during oil quenching. When the hardness is HB174～229, the relative cutting workability is 60%. The steel is suitable for making medium-sized plastic molds.
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.
SG255 gas cylinder LR AH40 shipbuilding structural plate steel is widely used in petroleum, chemical industry, power station, boiler, etc, used to make the reactor, heat exchanger, separator. The company is a professional gas cylinder steel exporter and a steel stockist in china. We keep more than 1000 tons SG255 gas cylinder steel coils in LR AH40 shipbuilding structural plate stock every month. If you want to get the steel price, please do not hesitate to contact us. Any need in SG255 Chemical Composition and Mechanical Properties, please feel free to contact us by email or calling to us.
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