19x2 seamless steel pipe Q345E T6479-2013
Q345E seamless steel pipeClick on the avatar in the spot
Chemical composition of Q345E:
The chemical composition of Q345E includes elements such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), nickel (Ni), copper (Cu), vanadium (V), and niobium (Nb). Among them, the carbon content ranges from 018%-0.20% with a silicon content range of 050%-0.55% with a manganese content range of 160%-1.80%, phosphorus and sulfur content is within a strictly controlled range.
Mechanical properties of Q345E:
Q345E has good mechanical properties. At normal temperatures, its tensile strength is between 470-630MPa and its yield strength is 345MPa. In addition, Q345E also has high plasticity and toughness, with an elongation of more than 22% and an impact toughness value of more than 34J.
If the steel market continues to decline in the later period, it is likely to drive the coal and coke market to fall again, but the magnitude may be limited. In North China, the operating rate of the coking plant is about 8 percent, which has increased compared with the previous period, and the business mentality has improved slightly, but in recent days, Tangshan billets have been lowered one after another, driving the billet to be slightly lowered, and the ore is still at a high level, and the downstream steel mills want to reduce the purchase of coke in order to compress costs, although the coking plant intends to raise the price, but the Q345E seamless steel pipe plant procurement enthusiasm has weakened significantly, the number of inventories has been increasing, and the coke and steel sides continue to compete. The southern region has frequent rainy weather in recent days, and the enthusiasm of market trading has weakened slightly.
The domestic coke spot market is running weakly and steadily, except for a very few steel mills in North China in June, the coke market in the rest of the region has not been adjustedToday, it continues to be weak, the market demand is sluggish, and the coke market has no supportContinue to pay attention to the actual progress of macroeconomic responses to favorable policies;The goods are weak today, affected by the snail **, the mainstream market is not optimistic about the trend of the raw material market, but different views also exist, it is recommended to operate multi-variety arbitrage or intertemporal arbitrage, pay attention to the safety of funds. The pig iron market is stable, and the transaction is still dominated by bargaining, and the demand is affected by multiple factors. At present, the raw material import ore is weak and stable, the coke market also continues to be weak, and the steel and billet market is still pessimistic, resulting in most iron mills are not optimistic about the later trend of pig iron, and it is expected that the short-term Q345E seamless steel pipe market may be dominated by a narrow consolidation.