Keywords: Welding of Q310GNH Steel Plates, Q310GNH plate, Q310GNH steel plate thickness
1. Q310GNH steel plates plate welding is widely used.
The weathering steel Q310GNH plate has been used for hundreds of years for metal forging. Q315NS low alloy sulfuric acid dew point corrosion resistant steel mainly relies on Cu, Cr, Sb elements to improve corrosion resistance. Considering the matching of composition, strength and corrosion performance, manual arc welding is now mainly used for welding ND steel (09CrCuSb), and there are related argon arc welding and submerged arc welding materials on the market. During the welding of the Q310GNH weathering steel plate, the workpiece and the solder melt to form a molten region, and the molten pool is cooled and solidified to form a connection between the materials.
2. Q310GNH steel plate is not only beautiful in appearance, but also perfectly combined.
Weather-resistant steel plate J507MoW is a low-hydrogen sodium type coating and a low-alloy steel electrode resistant to H, N, and NH3 corrosion. With DC reverse connection, all-position welding is possible. The deposited metal has good corrosion resistance and good welding process performance. Used for welding low-alloy steels with high temperature and high pressure corrosion resistance of H, N, NH3, such as Mo, W, Nb, V, etc., such as 10MoWVNb for high temperature and high pressure hydrogen corrosion or high temperature and high pressure H, N, NH3 corrosion steel welding. Deposited metal chemical composition (%) Chemical composition C Mn Si S P Mo V W Nb Guaranteed value ≤0.10 ≤0.80 ≤0.50 ≤0.035
3. Q310GNH steel plates are mainly used for steel structures such as railways, vehicles, bridges, towers and other long-term exposure to the atmosphere.
Q310GNH steel plate is used to manufacture structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms and containers containing hydrogen sulfide corrosion medium in chemical petroleum equipment. Weathering steel is made of ordinary carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. It has the characteristics of high-quality steel such as toughness, plastic elongation, forming, welding, abrasion, high temperature and fatigue resistance. The weather resistance is 2 for carbon steel. ~8 times, the coating performance is 1.5 to 10 times that of ordinary carbon steel. At the same time, it has the characteristics of rust resistance, anti-corrosion and life extension, thinning and reducing consumption, saving labor and energy.
4. Q310GNH steel plates specification
Q310GNH steel plate thickness 8-200mm, ≤4.5m wide, ≤18m long; processing parts geometry and size specifications*, tolerances: straightness per m≤0.5mm, verticality per 100mm thickness ≤8mm, external dimensions ≤1mm, The cutting surface finish is ≤ 100mm for 12.5, ≥ 100mm for 25, and the cutting quality is stable and reliable. 20Cr steel plate, 40cr steel plate, 65Mn spring plate, 60Si2Mn spring plate domestic high quality NM360 wear plate NM400 wear plate NM450 wear plate NM500 wear plate, Mn13 high manganese steel plate, 12Cr1MoV alloy plate, 15CrMo alloy plate, 27SiMn alloy plate, 42crmo Alloy plate, 35crmo alloy plate, 20CrMo alloy plate, Q345C steel plate, Q345D steel plate, q245r container plate, Q345R container plate, 304 stainless steel, bridge plate, high construction steel and other steel plates;
5. Q310GNH steel plates are widely used in various buildings and industrial facilities.
It hinders the diffusion and development of rust and protects the substrate under the rust layer to slow down its corrosion rate. The amorphous spinel type oxidation of about 50 μm to 100 μm thick formed between the rust layer and the substrate is directly produced by adding some weathering elements (generally CU, P) to the blast furnace molten steel (ordinary purity) of ordinary steel. The weathering resistance of these weathering steels is only 1.5-3 times that of ordinary steel, it is not durable, the rust is bad, and the strength is not enough. The blast furnace is made of ore, only after one refining, so there are many impurities, it is difficult to achieve good quality.
