Effect of heat treatment process on microstructure and properties of JIS G 3125 SPA-H corten steel

The company adheres to the business philosophy of "excellent quality and integrity", aims to create a first-class enterprise in the JIS G 3125 SPA-H corten steel industry, takes circular economy and resource reuse as the main line, takes energy conservation, emission reduction and sustainable development as the purpose, relies on advanced equipment, perfect transportation infrastructure and good reputation, and strives to become a leading enterprise in the JIS G 3125 SPA-H corten steel industry with scientific management, high quality, first-class service and harmonious development

BBN Steel Company adheres to the marketing concept of "first-class technology, first-class steel quality, and first-class logistics services". It is our goal to build high-quality carbon steel JIS G 3125 SPA-H corten steel, alloy steel plates and high-strength structural steel plate international-class boutique bases. Our logistic team will make customs clearance documents, track products production process, and update shipping information for customers. Creating value for customers is our pursuit.

As the thickness and hardness of JIS G 3125 SPA-H corten steel increase, the tendency to crack at the cutting edge increases. In order to prevent the JIS G 3125 SPA-H corten steel from cutting cracks, preheating should be carried out before JIS G 3125 SPA-H corten steel cutting. Special attention should be paid to preheating to make the entire JIS G 3125 SPA-H corten steel interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole JIS G 3125 SPA-H corten steel cannot be preheated, the partial preheating method can be used instead.

The Peru customer has cooperated with us since April 2015, and then they purchased 300 tons A36 mild steel plates as trial order. Since then, they book more than 1000 tons from us every time, and about two times every year. They asked SGS test every time. Through our cooperation those years, we have built very good relationship and they entrust us to buy other related JIS G 3125 SPA-H corten steel products for them from China also. And they have introduced us good customers in Peru, among which there are also governmental projects. It is a win-win cooperation between us.

JIS G 3125 SPA-H corten steel, ASTM A131 shipbuilding steel has different grade levels. The ordinary strength shipbuilding steel grades are grade A/B/D/E. Their min. yield strength is 235 Mpa, and tensile strength is 400-520 Mpa. The higher strength shipbuilding steel grades are grade AH32/DH32/EH32/FH32, AH36/DH36/EH36/FH36 AH40/DH40/EH40/FH40. The min. yield strength of AH32/DH32/EH32/FH32 steel is 315 Mpa, and tensile strength is 440-590 Mpa. The min. yield strength of AH36/DH36/EH36/FH36 steel is 355 Mpa, and tensile strength is 490-620 Mpa. The min. yield strength of AH40/DH40/EH40/FH40 steel is 390 Mpa, and tensile strength is 510-650 Mpa.

Aspire to technological innovation and pursue first-class quality steel JIS G 3125 SPA-H corten steel products.Take independent innovation as an important support for the sustainable development of iron and steel industry, strengthen the main position of technological innovation, accelerate the original innovation, integrated innovation, introduction, digestion, absorption and re innovation, improve the technological innovation system, and cultivate the core technology and brand products of independent intellectual property rights.