4140 steel plate mill–It is a general-purpose steel plate with extreme versatility| OTAI
What is 4140 steel
4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components. For example, axles, shafts, bolts, gears, and other applications.
Similar to alloy grade AISI 4130 chrome moly alloy steel but with slightly higher carbon content.
The higher carbon content of 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steel.
However, it does have inferior weldability characteristics.
Steel news
The high temperature continued in many places in the south, the release of demand was suppressed, and the ups and downs of the capital market affected the sentiment of merchants. Hence, the market failed to continue the trend of unilateral recovery.
Regarding the market trend next week, we will analyze the following points: on the cost side, scrap steel resources are in short supply, prices have rebounded sharply, coke still has the driving force to increase, and the cost of steel mills has increased again, and the willingness to support prices is strong; on the supply side, after the overall increase in raw material prices, the profit margins of steel mills are compressed, and local power cuts are superimposed, and the strength of output recovery may be slowed down. ( 4140 steel)
market price information
From August 8th to August 12th, the steel index closed at 4,440 yuan/ton, up 100 yuan/ton week-on-week. ( 4140 flat) According to the data of information monitoring, as of August 12, the average price of 25mm specification grade 3 rebar in 69 major markets across the country was 4,403 yuan/ton, up 25 yuan/ton from the previous week; Week-on-week rose 16 yuan/ton.
Customer’s story
We would like to share a real case of our customer with you. Jay from Brazil send us an inquiry about the 4140 sheets, which required a lot of specifications and a small quantity. James asked many suppliers who were unwilling to cooperate and finally found us. We are the source manufacturer so that we can meet the needs of customers to customize the specifications of goods. Then James placed the order successfully. After receiving the goods, he said that he would seek our cooperation for a long time. (4140 steel plate mill)
FAQ
Is 4140 good for forging?
4140 has high strength, hardenability, good toughness, small deformation during quenching, high creep strength, and long-lasting strength at temperature.
What is 4140 steel used for?
It can be used for manufacturing forgings with higher strength and larger tempering cross-section than 35CrMo steel, such as big gear for locomotive traction, supercharger drive gear, rear axle, connecting rod, and spring clamp with great load and etc.
What is 4140 QT?
As a quality alloy steel grade 4140 is commonly supplied quenched and tempered (QT) which offers good high tensile properties. It is characterized by its good ductility and shock-resistant properties that combine with good wear resistance.
What is the hardness of 4140?
It is offered in the cold finished annealed condition. Typical hardness is Rockwell “C” 19/24. Typical tensile strength 114,000 PSI. Its wear-resistant properties far exceed that of “cold roll” steels.
Is 4140 steel stainless steel?
NO. it’s alloy steel.
