ASTM A573 welding structural steel,Zhengzhou BBN steel company was established in 2000. After more than ten years of development, it has formed a professional operation pattern integrating R&D, production, sales and after-sales service. In recent year
ASTM A573 welding structural steel,Zhengzhou BBN steel company was established in 2000. After more than ten years of development, it has formed a professional operation pattern integrating R&D, production, sales and after-sales service. In recent years, based on a high starting point and high technology, the company has vigorously developed various steel products ASTM A573 welding structural steel and deep-processed parts, steel structures, precision castings, seamless pipes.
40Cr grade under GB/T 3077-2015 standard is a alloy steel bar material. , 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
Shipbuilding steel plates are used to manufacture the hull of marine and inland ships. High strength, plasticity, toughness, cold bending performance, welding performance and corrosion resistance are required for shipbuilding steel plates. Boiler steel plates are used to manufacture various boilers and important accessories. As the boiler steel plate works under medium temperature (below 350℃) and high pressure, it is also subject to impact, fatigue load and water and gas corrosion. The , boiler steel plate is required to ensure a certain strength and have good welding and cold bending properties,ASTM A573 welding structural steel.
The company's after-sales service team is a high-quality professional team. Most after-sales employees have rich service experience and have reached the level of after-sales engineer. The after-sales department implements the after-sales personnel responsibility system and a 24-hour response mechanism. The company's advanced customer relationship management system provides customers with "standardized and streamlined services". A sound customer relationship maintenance system, and a "one-stop" customer satisfaction tracking system, all reflect our strong after-sales service guarantee.
Our team is a dynamic, but also mature and steady team The talents are made of different ages There are experienced ones, and also creative ones, that also makes our company culture diversified We have complete department structure, to make the whole work procedure run smoothly For every step, we have special person to be in charge and responsible for our customer and update information to the customer in time So you just need not worry too much to purchase steel materials from our company,ASTM A573 welding structural steel.
Expect in the ASTM A573 welding structural steel goods regardless quality be still on the price after-sales service we all will keep in the middle of go together of advantage position real attain the ream customer satisfaction.Our advantage is: experienced craftsmen product development technology, excellent production team, hand strict quality control, sales and after-sales service.
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