Welcome to Henan BBN Steel

  • zhengzhou
    henan ,China
  • Opening Time
    Mon - Sat: 08.00 to 18.00
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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 S355ML meaning various engineering projects. Customer service center has a strong technical force of technical service team, composed of a customer service center manager, several S355ML meaning after-sales service personnel, responsible for unified acceptance and processing of local after-sales service needs.

Q420B material is a low-alloy high-strength structural steel. S355ML meaning, Q420 is not high-strength steel, it is still low-carbon steel. Its tensile strength has been improved a bit. The tensile strength of Q235 steel is 235MPa, and the tensile strength of Q420B steel is 420MPa. Q420B low alloy steel has high strength and good fatigue resistance; high toughness and low brittle transition temperature; good Cold forming performance and welding performance; has good corrosion resistance and certain wear resistance.

"A573 Grade 70 steel chemical composition(%)Carbon max. 0.28: Manganese: 0.85-1.20Phosphorus Max.: 0.03Sulfur Max.: 0.03Silicon: 0.15-0.40S355ML meaning, A573 Grade 70 steel mechanical propertiesTensile strength min. MPa: 290Yield strength min. MPa: 485Elongation % min. in 200mm : 18Elongation % min. in 50mm : 21"

High-temperature boiler steel plates such as 15CrMoR plate, 12Cr1MoVR steel plate, ASME SA387 grade 22 steel, A387 Gr 91 boiler steel, ASME SA1017 Gr 23, SA1017 Gr 911, SA1017 Gr 122 steel, S355ML meaning, must have features of:Sufficient high temperature durability and durable plasticity;Good high temperature tissue stability;Good high temperature oxidation resistance (heat resistance);Good hot and cold processing technology (mainly refers to cold bending deformation and weldability), etc.

The after-sale service of iron and steel products includes after-sale tracking service, technical guidance, transfer of relevant bills, handling of objections and many other contents. The handling of quality objections accounts for a large proportion. When dealing with these problems, we should distinguish the responsibilities, and compensate or return the inconvenience or loss caused to users due to steel.

The company's products S355ML meaning have excellent quality, reasonable prices and strong usability, and are well received by users. Survive by quality, expand the market with integrity, continuously research and develop new products, expand varieties, to meet market demand, and make the company continue to grow. The needs and interests of users are our high philosophy of service and commitment, and customer satisfaction is our eternal pursuit.

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