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D2/1.2379 steel

D2/1.2379 steel

D2/1.2379 steel is a high-carbon, high-chromium tool steel that belongs to the group of cold-work steels. It was developed in the early 20th century by the German company Thyssen Krupp for use in cutting and forming tools. D2/1.2379 steel is known for its high wear resistance and toughness, which makes it a popular choice for making knives, dies, punches, and other cutting tools.

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D2/1.2379 steel Composition

D2/1.2379 steel has a high hardness and excellent wear resistance, which makes it ideal for making cutting tools that are subject to heavy wear and tear. It also has high toughness, which means it can withstand shock and impact without cracking or breaking. However, D2/1.2379 steel has only fair corrosion resistance and can rust if not properly maintained.

D2/1.2379 steel is typically heat treated using a process called quenching and tempering. This involves heating the steel to a high temperature and then rapidly cooling it in oil or water to harden it. The steel is then tempered at a lower temperature to increase its toughness and reduce its brittleness.

D2/1.2379 steel is a popular tool steel used for making knives, dies, punches, and other cutting tools. It is known for its high wear resistance, toughness, and edge retention. The chemical composition of D2/1.2379 steel includes high levels of carbon, chromium, vanadium, and molybdenum, which give it its unique properties. While D2/1.2379 steel has its pros and cons, it is a versatile tool steel that can be used in a wide range of applications.

D2/1.2379 steel is often compared to other tool steels such as A2 steel, O1 steel, and S7 steel. While each steel has its own strengths and weaknesses, D2/1.2379 steel is generally known for its high wear resistance and toughness. A2 steel is known for its toughness and stability, while O1 steel is known for its ease of sharpening and edge retention. S7 steel is known for its shock resistance and toughness.

Supply Range
  • D2 Tool Steel Round Bar: diameter 8mm – 350mm
  • D2 Steel Plate: thickness 2mm –300mm  x width 200mm – 800mm
  • Other dimension according to your requirements
  • Surface condition: Black, Rough Machined,Turned or as per given requirements

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Qilu steel has two big warehouses ,one of them is located in Wuxi ,Jiangsu province .We have more than 12,000 tons of inventory, covering alloy steel,tool and die steel, stainless steel and other steel products in different sizes.We also provide different shapes of them which include 


Qilu has a large stock of rolled and forged bars from Dongbei Special Steel ,Shi-Steel ,Huai-Steel with a short delivery time .We also stock other products which can cover carbon steel ,alloy steel ,tool and mould steel,stainless steel in different shapes and sizes.Our stock of steel exceeds 12,000 tons all year round.


In the steel workshop, metals are heated and subjected to high pressure to forge them into various shapes and sizes of parts, components, and equipment. These products can be used in various industries, such as aviation, automotive, construction, and more.

Shandong Qilu lndustrial Co.,Ltd.established from the year of 1985,we are engaged in supplying forged steel products.Having a full line service from smelting,forging,heat treatment,surface process to logisitics.We’ve served of customers in abroad and domestic market,familiar with the standards in different countries.Since 2016,we’ve to broaden our range of products,invested a forged products factory and set up two main warehouses aiming to provide a better service relating steel products.


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The organization has developed quality objectives and work plans for quality management. We follow stringent quality control norms by reviewing and monitoring each production processes. This allow us to upgrade our quality processes to superior levels.

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Steel is the most versatile metal that finds extensive use not only in industrial applications but also across a spectrum of our day to day life. The demand for steel is all time high in the international market. 

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As a professional steel production company, we strictly implement ISO standards throughout the production line to provide consistent high-quality products. Our plentiful inventory and fast shipping improve the accuracy and timeliness of orders. With in-house advanced test and measurement tools, we ensure that every component meets your required specifications.

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Welcome to Qilu, with sales company in Shandong ,and special steel company in Jiangsu province with two warehouses in the Wuxi and Shanghai, we provide steel products solutions in domestic and abroad.

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