The quality inspection department is responsible for the inspection management of raw materials and finished products, and the quality inspection and acceptance of products and raw materials. Strictly abide by the company's management system, conscientiously exercise the management power given by the company, and put an end to all ultra vires; be responsible for the inspection of all kinds of raw materials entering the company, and put forward quality problems and handling opinions.
After quenching and tempering, the 40Cr alloy steel plate has good comprehensive mechanical properties, good low-temperature impact toughness and low notch sensitivity. The hardenability of steel is good. It can be hardened to Ф28～60mm in water quenching and Ф15～40mm in oil quenching. In addition to quenching and tempering, 40cr sheet is also suitable for cyanidation and high-frequency quenching.
X-rays or γ-rays are projected on the surface of the steel plate, and rubber can be placed on the other side of the steel plate. Since the radiation propagates through the steel plate and is absorbed, the intensity is different due to the presence or absence of defects, so the film can record the shape and position of the defects. This A514 grade R alloy steel plate method is sensitive to the detection of common steel plate defects such as slag inclusions, porosity and pores. The disadvantage is that it is difficult to find the specific depth of the defect and it is not easy to find cracks.
A514 grade R alloy steel plate 2020 stock in Zhengzhou: 8*2200*5730, 16*1800*6000, 18*2660*9600, 18.5*2320*6600, 70*2240*7600, 18.5*2320*6600, 9*2300*6870, 18.5*2320*6600, 14*2000*11181, 50*2410*8300, 85*2230*8100, 14*2000*11181, 6*2000*10000, 8*2200*5730, 70*2270*7470, 34*1300*4000, 16*1800*6000, 16*2000*10713, 12*2820*11500, 16*2000*10713, 15*2500*10000, 20*2150*9450, 14*2000*13500.
Tianjin warehouse mainly stores steel plates and steel pipes. The monthly replenishment is about 12000 tons. Our inventory cycle is short and flexible. Shanghai warehouse mainly stores A514 grade R alloy steel plate ,steel plate and section steel. The average monthly purchase volume is about 15000 tons. The geographical location of the warehouse has greatly improved our performance in terms of transportation and delivery time.
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