Our company is a large A514 grade B structural steel material steel enterprise integrating steel plate production, sales and processing. It is a first-class agent of Shanxi Taigang, Shanghai Baosteel, Jiugang, Xi'an Huaxin, Taishan steel, Dongfang special A514 grade B structural steel material steel and southwest special steel. It is a special dealer of famous steel plants in China, such as Columbus, NAS, acerinox, Outokumpu, Arcelor, nipponmetalindustry, nipponyakinkogyo, NSC, etc.
At present, China's wear-resistant steel plate grades are divided into six levels, namely NM300, NM360, NM400, NM450, NM500, NM550 and NM600. The wear-resistant steel A514 grade B structural steel material grade adopts the combination of Chinese NM of wear resistance meaning and Brinell hardness (HB) value. For example: NM500, NM is the first universal parent of Chinese "wear resistance", "500" is Brinell hardness value. NM series wear-resistant steel has good wear resistance, which greatly reduces the loss and use cost.
Compared with A514 grade B structural steel material, boiler steel plates should have the following properties: (1) High medium temperature strength: low and medium pressure boiler drums use steel with a lower yield point, high pressure boilers use steel with a high yield point. (2) Good plasticity, impact toughness, cold bending and welding performance. (3) The notch sensitivity is small, that is, the sensitivity to the stress concentration caused by the opening of the steel plate surface and the welding of the pipe head is small.
The preparation of A514 grade B structural steel material galvanized steel before welding is the same as that of ordinary low-carbon steel. It is necessary to carefully handle the groove size and nearby galvanized layer. In order to achieve penetration, the groove size shall be appropriate, generally 60 ~ 65 °, with a certain gap, generally 1.5 ~ 2.5mm; in order to reduce the penetration of zinc into the weld, the galvanized layer in the groove can be removed before welding. In the practical work, the centralized beveling, no blunt edge technology for A514 grade B structural steel material centralized control, two-layer welding process, reducing the possibility of incomplete penetration.
A514 grade B structural steel material leading supplier in China 5.5*2570*8600, 8*2920*7000, 5.5*2490*7100, 5.5*3000*10000, 6*3000*7000, 6*2500*9000, 6*3000*8500, 8*2920*6400, 8*1290*12000, 8.5*2090*8760, 6*2860*8500, 6*2550*11100, 8*2920*6200, 6*3000*13000, 6.5*2200*8700, 6*3000*11000, 6*2690*9000, 8*1800*6400, 5.5*2570*7700, 6*2680*8400, 9*2100*10050, 8*1800*6400, 8*2800*8000, 10*2600*9500.
The company focuses on two markets at home and abroad, and has a group of 56 experienced sales elites and professional and technical personnel. It can provide customers with drawing design, A514 grade B structural steel material deep processing services and installation solutions. 20 years of project experience has provided high-quality carbon steel, alloy steel products and high-quality after-sales service to customers in many countries around the world. The company has won widespread praise from customers.
